Samsung Galaxy malfunctions and their elimination.

Site search Nowadays it is difficult to imagine a comfortable life without a mobile phone.These means of communication are gaining increasing popularity all over the world. They are undoubtedly convenient: no matter where you are, your friends and parents can call you at any time, and you can call them. According to some publications, “for young people this is the most modern way to quench their thirst for communication.” But, unfortunately, mobile phones, like many other technically complex products, often break down, fail, or develop various malfunctions during use. What if, for example, in your mobile device

Did water suddenly get in, or did your cell phone simply stop turning on one day?

We present to your attention the most frequently asked questions and answers to them related to the use of mobile phones.

QUICK PHONE TEST
Take the Digital Power Supply. We set it to 4 volts and connect it instead of the battery.
If the current consumption is higher than 300 mA, then there is a breakdown in the power supply, look at the power supply.
If the protection is triggered, it means the transmitter has failed, we replace the transmitter.
If it doesn't consume anything, then everything is fine.

If the current is not more than 30mA, then the Software does not work.

Water got into the cell phone or the phone itself fell into the water
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise, the phone may become partially or completely inoperable. Let me emphasize that it is possible, but not mandatory. But the oxidation (rusting) process can take quite a long time, and it is impossible to say how the phone will behave the next day or in a month. The more time has passed since moisture entered, the less likely it is that the phone will be restored to full functionality in the event of a breakdown.

Cell phone does not receive network

The first thing you need to pay attention to is whether the phone shows at least some level of reception on the display. If it shows, then perhaps the network you have chosen does not support your operator. To do this, go to the “SETTINGS” menu and select the “AUTOMATIC” network search mode. If this doesn’t work, try selecting your network manually in the same menu.
The following reason may lie in your SIM card:
It has expired

SIM card is faulty
The easiest way to check this is to insert another card into your phone. For the purity of the experiment, it is better to use a card of the same operator as yours.
If all of the above does not help, then the problems lie in the phone itself. There are many of them: from failure software until the electronic components of the phone fail.

SMS cannot be sent from a mobile phone

The most common reason for this is that the Short Message Center (SMS Center) number is indicated incorrectly, or it is missing altogether. Short messages (SMS) are actually sent to this number, and the operator cellular communication further redirects your short messages (SMS) to the recipient’s number. Each mobile operator has its own SMS center number. Find out this number from your cellular operator.
The Short Message Center (SMS Center) number is entered in the cell phone's SETTINGS submenu, in the MESSAGES menu.
Also, short messages (SMS) can be blocked by a cellular operator due to non-payment or another reason.

Doesn't show cell phone display

One of the reasons may be a defect in the display itself. It needs to be replaced.
If we are talking about a “clamshell” or “slider” type phone, then in this case the cable may also be the cause. This is a flexible part with conductors that connects one part of the phone to another. One or more of these conductors may have become damaged. The cable needs to be replaced.
We may also be talking about a defect that occurred after moisture got inside the phone. In this case, a thorough diagnosis and cleaning, and possibly more serious repairs, are required.

Streaks on a cell phone screen

If the display itself is damaged, this is the worst thing, although this may not be visible visually. The display needs to be replaced.
If the phone is a “clamshell” or “slider” type, this may be due to damage to the cable - the transition part from one half of the phone to the other.
This can also happen if moisture gets inside the phone.
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise....(described above).

The mobile phone keyboard does not work or does not work completely

Most often this occurs from moisture. At best, it needs to be cleaned from oxidation, unless, of course, it only occurred under the keyboard.
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).
This can also happen after a fall or blow. In this case, a complete soldering of the phone is required.
The keyboard is entirely responsible for the phone's processor element. So the keyboard may not work due to its failure.

The ringer on your mobile phone is wheezing or doesn’t work at all

The phone is in “silent mode”: in this case, the call is disabled
turn off “quiet mode” (on many devices you need to press and hold the “#” button)

Alert mode selected: “vibration alert only” or “no sound”
In the “Sound Settings” menu, enable sound notification

Moisture got into the phone
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).

The bell has failed.
In clamshell or slider phones, this may be due to a damaged cable. This is a flexible part with conductors that connects one part of the phone to another. One or more of these conductors on the loop have become damaged. The cable needs to be replaced.

The speaker does not work: they can hear you, but you cannot

This may seem funny, but there are very common cases when they bring a phone to a service center with the volume turned down to a minimum and complain that they can’t hear anything. In this case, it is enough to turn up the volume during a conversation.
If we are talking about a “clamshell” or “slider” type phone, then the fault may lie in the cable. This is a flexible part with conductors that connects one part of the phone to another. One or more conductors on the loop responsible for sound are damaged. The cable needs to be replaced.
This is also possible due to mechanical damage.
The rest of the reasons lie inside the phone.

The microphone in your mobile phone does not work: you can hear, but you cannot

Usually the problem lies in the microphone. If during the diagnostic process it turns out that the microphone has “fly”, it needs to be replaced
If we are talking about a phone with an active flip (folding part with a microphone), then the reason may be the microphone cable - the transition part between the flip and the phone
Moisture that once got into the phone can lead to such consequences.
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).
Several elements are responsible for the operation of the audio channel in the phone. Find out which one is faulty.
This could also be caused by a software failure.

Cell phone is not charging

The reason may lie in the phone charger. A simple example to find out is to find it from someone you know Charger from the same model. But I repeat: exactly “the same”!!! If you insert a charger from another brand into your phone, provided that the connector fits, the phone itself may be damaged. For example, many Samsung and LG phones have the same charging socket. But their chargers are different due to the fact that power is supplied to different contacts of the charging connector. And, if you connect an LG charger to a Samsung phone, the phone's processor will most likely fail. Replacing it is an expensive process. And it happens that it is completely impossible to repair the phone after this.
The next reason may be the phone's charging connector. For example: it happens that you start moving the charger connector in the phone’s charging socket, and the indication begins to show that the phone is charging. In this case, the phone charging connector needs to be replaced.
If the charging indicator shows that the phone is charging, but in reality after charging the phone either does not turn on, or the charge is enough for half a call. There can be many reasons: from software failure to failure of the phone’s electronic components.

Mobile reboots (restarts)

There are several things we can talk about here, such as a software failure.
It happens that the reboot is caused by a faulty phone power amplifier. When turned on, it begins to consume ***** too much current, the phone turns off and turns on again. But it seems to us that the device is rebooting.
Another reason may be mechanical damage. printed circuit board phone or its elements. This usually happens after a fall or blow. Sometimes you can check this by bending the phone with your hands (quite strongly): if the phone turns off after that or freezes, then this is the reason.
Another reason could be the phone battery.

Cell phone runs out of battery quickly

This most often happens due to a bad battery. You can check it at home experimentally - ask to swap the battery for one day with a friend who has the same phone.
This can happen due to the charger - the phone is not charging enough. As a rule, this happens when using a “non-native” charger, in other words, a “Chinese” one.
If your phone dies when you make a call and you just charged it, the problem may be with the phone's power amplifier (transmitter). This often happens due to the phone falling.
If we are talking about smartphones, they can quickly become discharged due to a virus like “Carib”. This virus does one simple thing - it constantly turns on Bluetooth, which drains the battery. The virus is transmitted “airborne,” that is, via Bluetooth. The easiest way to protect yourself is to set the Bluetooth access settings to “NOT FOR EVERYONE.” And it will not damage the installed antivirus, since it is impossible to remove the virus without loss. Removal will result in complete cleaning phone memory.
There are many possibilities why this could happen.

The cell phone does not see the SIM card or writes a SIM card error message

One of the reasons may be your SIM card:
It has expired
The account has run out of funds
SIM card is faulty

The easiest way to check this is to insert another card into your phone. For the purity of the experiment, it is better to use a card of the same operator as yours.
Perhaps the phone is “locked” (encoded) for a specific operator, and you are trying to insert a “foreign” (other operator) card. In this case, use the SIM card of the operator to which the phone is locked.
It happens that the contacts of the SIM card or the contacts of the SIM receiver on the phone are dirty or oxidized. Try using a regular eraser to wipe all their contacts.
It often happens that the contacts of the SIM card do not reach the contacts of the SIM receiver. Try to fix this by placing a piece of paper folded 3-4 times between the SIM card and the battery. This is possible if the device is designed in such a way that there is a SIM card under the battery, and it is not in a special card reader. As an example, we can cite the Siemens SL45, A50, A52, A60 models.
Nokia N71 is an interesting case: oddly enough, the phone may not see the SIM card due to poor contact between the battery and the phone. Try using an eraser to clean the central contact on the battery and the corresponding contact on the phone. Perhaps the same thing can happen with other Nokia models. Inexplicable but the fact!
Nokia 8800 does not see the SIM card repeatedly: we have encountered this case many times. And also a strange case - try to replace the battery. Due to a bad battery, it may not see the SIM card.

Joystick on mobile phone does not work

If the joystick is bad, but works, then the problem is most likely in the joystick itself. It is best to replace it and not bother with repairing it. As practice shows, repaired joysticks do not last long.
If the joystick does not work at all, the joystick may again be to blame. But there are cases, as with non-working buttons: the reason lies inside the phone. The keyboard and joystick are entirely responsible for the phone's processor element. So both the keyboard and the joystick may not work due to their failure.

Cell phone asks to enter "phone code"

Usually, it is enough to enter this code, and access to the phone will be open. But this doesn't always happen. If, after entering the correct code, I repeat - the correct one, access does not open, it means that there is a failure in the software. Phone software needs to be changed.
You have no idea about this code, that is, you personally did not enter it there; in this case, referring to the phone instructions can help. There you can find the standard phone code that was entered at the factory and enter it into the phone.

Water got into the cell phone or the phone itself fell into the water.

The first thing to do is disconnect the battery from the phone. Then try to somehow dry the device with a hairdryer, put it on the radiator overnight, place it in a warm place for a couple of days, etc. Perhaps after this the phone will work without problems. Although, as practice shows, the lion's share of phones coming in for repair have previously been exposed to water (this is indicated by rusty spots inside, oxidation, deposits, etc.), and who knows for what reason the phone actually failed this time. In any case, it can be argued that the water that once got there played a significant “role”
In all cases of moisture getting under the phone body, it is necessary to dry and clean the device. Otherwise, the phone may become partially or completely inoperable. Let me emphasize that it is possible, but not mandatory. But the oxidation (rusting) process can take quite a long time, and it is impossible to say how the phone will behave the next day or in a month. The more time has passed since moisture entered, the less likely it is that the phone will be restored to full functionality in the event of a breakdown.

The cell phone does not connect to the network.

The first thing you need to pay attention to is whether the phone shows at least some level of reception on the display. If it shows, then perhaps the network you have chosen does not support your operator. To do this, go to the “SETTINGS” menu and select the “AUTOMATIC” network search mode. If this doesn’t work, try selecting your network manually in the same menu.
The following reason may lie in your SIM card:
It has expired

SIM card is faulty

If all of the above does not help, then the problems lie in the phone itself. There are many of them: from software failure to failure of the phone’s electronic components.

SMS cannot be sent from a mobile phone.

The most common reason for this is that the Short Message Center (SMS Center) number is indicated incorrectly, or it is missing altogether. Short messages (SMS) are actually sent to this number, and the cellular operator then redirects your short messages (SMS) to the recipient’s number. Each mobile operator has its own SMS center number. Find out this number from your cellular operator.
The Short Message Center (SMS Center) number is entered in the cell phone's SETTINGS submenu, in the MESSAGES menu.
Also, short messages (SMS) can be blocked by a cellular operator due to non-payment or another reason.

Does not show cell phone display.

Stripes on a cell phone screen.

The mobile phone keyboard does not work or does not work completely.

The ringer on your mobile phone wheezes or doesn’t work at all.

The phone is in “silent mode”: in this case, the call is disabled
turn off “quiet mode” (on many devices you need to press and hold the “#” button)

Alert mode selected: “vibration alert only” or “no sound”
In the “Sound Settings” menu, enable sound notification

Moisture got into the phone
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).

The speaker does not work: they can hear you, but you cannot.

The microphone in your mobile phone does not work: you can hear, but you cannot No.

Usually the problem lies in the microphone. If during the diagnostic process it turns out that the microphone has “fly”, it needs to be replaced
If we are talking about a phone with an active flip (folding part with a microphone), then the reason may be the microphone cable - the transition part between the flip and the phone
Moisture that once got into the phone can lead to such consequences.
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).
Several elements are responsible for the operation of the audio channel in the phone. Find out which one is faulty.
This could also be caused by a software failure.

The cell phone is not charging.

The reason may lie in the phone charger. A simple example to find out is to find a charger from the same model from someone you know. But I repeat: exactly “the same”!!! If you insert a charger from another brand into your phone, provided that the connector fits, the phone itself may be damaged. For example, many Samsung and LG phones have the same charging socket. But their chargers are different due to the fact that power is supplied to different contacts of the charging connector. And, if you connect an LG charger to a Samsung phone, the phone's processor will most likely fail. Replacing it is an expensive process. And it happens that it is completely impossible to repair the phone after this.
The next reason may be the phone's charging connector. For example: it happens that you start moving the charger connector in the phone’s charging socket, and the indication begins to show that the phone is charging. In this case, the phone charging connector needs to be replaced.
If the charging indicator shows that the phone is charging, but in reality after charging the phone either does not turn on, or the charge is enough for half a call. There can be many reasons: from software failure to failure of the phone’s electronic components.

The mobile reboots (restarts).

There are several things we can talk about here, such as a software failure.
It happens that the reboot is caused by a faulty phone power amplifier. When turned on, it begins to consume ***** too much current, the phone turns off and turns on again. But it seems to us that the device is rebooting.
Another reason may be mechanical damage to the phone’s printed circuit board or its elements. This usually happens after a fall or blow. Sometimes you can check this by bending the phone with your hands (quite strongly): if the phone turns off after that or freezes, then this is the reason.
Another reason could be the phone battery.

The cell phone runs out of battery quickly.

This most often happens due to a bad battery. You can check it at home experimentally - ask to swap the battery for one day with a friend who has the same phone.
This can happen due to the charger - the phone is not charging enough. As a rule, this happens when using a “non-native” charger, in other words, a “Chinese” one.
If your phone dies when you make a call and you just charged it, the problem may be with the phone's power amplifier (transmitter). This often happens due to the phone falling.
If we are talking about smartphones, they can quickly become discharged due to a virus like “Carib”. This virus does one simple thing - it constantly turns on Bluetooth, which drains the battery. The virus is transmitted “airborne,” that is, via Bluetooth. The easiest way to protect yourself is to set the Bluetooth access settings to “NOT FOR EVERYONE”. And it will not damage the installed antivirus, since it is impossible to remove the virus without loss. Deleting will completely clear the phone's memory.
There are many possibilities why this could happen.

The cell phone does not see the SIM card or writes a SIM card error message.

One of the reasons may be your SIM card:
It has expired
The account has run out of funds
SIM card is faulty

The easiest way to check this is to insert another card into your phone. For the purity of the experiment, it is better to use a card of the same operator as yours.
Perhaps the phone is “locked” (encoded) for a specific operator, and you are trying to insert a “foreign” (different operator) card. In this case, use the SIM card of the operator to which the phone is locked.
It happens that the contacts of the SIM card or the contacts of the SIM receiver on the phone are dirty or oxidized. Try using a regular eraser to wipe all their contacts.
It often happens that the contacts of the SIM card do not reach the contacts of the SIM receiver. Try to fix this by placing a piece of paper folded 3-4 times between the SIM card and the battery. This is possible if the device is designed in such a way that there is a SIM card under the battery, and it is not in a special card reader. As an example, we can cite the Siemens SL45, A50, A52, A60 models.
Nokia N71 is an interesting case: oddly enough, the phone may not see the SIM card due to poor contact between the battery and the phone. Try using an eraser to clean the central contact on the battery and the corresponding contact on the phone. Perhaps the same thing can happen with other Nokia models. Inexplicable but the fact!
Nokia 8800 does not see the SIM card repeatedly: we have encountered this case many times. And also a strange case - try to replace the battery. Due to a bad battery, it may not see the SIM card.

The joystick on the mobile phone does not work.

The cell phone asks you to enter a “phone code.”

The cell phone does not connect to the computer.

The first reason may be the computer, a program, or settings in the computer itself.
If the phone is connected to the computer using a cable, then the fault may be either the cable itself or the connector in the phone. Try cleaning the connector contacts on your phone.
If all of the above is in order, then start checking the connection settings on your phone.

Cell phone turned off and won't turn on

First, try charging your phone by leaving it on charge for a day.
Perhaps the reason is moisture that once entered. Diagnosis required.
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).
Often the culprit is a software glitch.
One of the microcircuits could have failed, which for obvious reasons led to inoperability up to and including “non-starting”.
It is possible that the battery has failed.

The cell phone turns on "every time".

Usually the culprit is the power button (especially in Nokia and Sony - Ericsson phones). It needs to be replaced.
The second reason is that water once got into the phone.
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).
Mechanical damage may also be to blame.

The cell phone turns itself off - self-shutdown.

Often the cause of this is a bad battery or poor connections between the contacts of the battery and the phone.
The second, most common reason is mechanical damage to the phone's printed circuit board or its elements. This usually happens after a fall or blow. Sometimes you can check this by bending the phone with your hands (quite strongly): if the phone turns off after that or freezes, then this is the reason.
It also happens that self-shutdown occurs due to a software failure. This happens less often, but it also happens.

Vibrate alert on cell phone does not work.

Moisture that once got in may be to blame.
In all cases of moisture getting under the phone case, it is necessary to dry and clean the device. Otherwise...(described above).
The vibration motor itself may have failed and needs to be replaced.
If we are talking about a flip phone, then often the vibration motor is located next to the display at the top of the phone. In this case, the reason for the vibration alert to not work may also be the cable. This is a flexible part with conductors that connects one part of the phone to another. Consequently, one or more of these vibration conductors have become damaged. The cable needs to be replaced.

The phone only works with one operator.

Such phones are called “operator-locked”. The data of the specific operator for which it is “locked” is embedded into their program code, and when you try to insert a “foreign” SIM card, the device “swears”. There are only two options here: either use a SIM card from this particular operator, or unlock it.

The cell phone freezes.

A common cause is mechanical damage to the phone's circuit board or its components. This usually happens after a fall or blow. Sometimes you can check this by bending the phone with your hands (quite strongly): if the phone turns off or freezes, then this is the reason.
The cause may also be a software failure. For example, in modern Nokia phones it looks like this: after turning it on, the word NOKIA appears on the screen and the phone “freezes,” that is, it does not react to anything and shows no signs of life. You have to disconnect the battery for the image to disappear.

Quick phone power test.

We take the Digital Power Supply. Set it to 4 volts and connect it instead of the battery.
If the current consumption is higher than 300 Ma, then there is a breakdown in the power supply, look at the power supply.
If the protection is triggered, it means the transmitter has failed, we replace the transmitter.
If the protection is triggered, it means the transmitter has failed, we replace the transmitter.
If, when you press PWR, the consumption is more than 100Ma, then one of the stabilizers (five-legged) has failed.
If the current is not more than 30mA, then the Software does not work.

Mobile malfunction - typical faults and repairs cell phones available.

DO NOT ATTEMPT TO REPAIR THE PHONE YOURSELF, THIS MAY RESULT IN MORE SERIOUS DAMAGE AND RESULT IN HIGH COSTS FOR ITS RESTORATION!

The phone's keyboard does not work, the device does not respond to key presses. The phone turns on, but it is impossible to enter the menu, dial a number, make a call or answer a call. The cause may be either the failure of electronic components or simple contamination of the contact pads. The defect is eliminated by cleaning the phone or replacing the controller. Sometimes components fail due to moisture getting into the phone. In this case, they are replaced with serviceable ones. The phone has been exposed to liquid or has been soaked in water. First of all, remove the battery from your phone. You can find out full information on how to save your phone by calling us.

The most common breakdowns after liquid gets inside the phone:

1. The function keys, keyboard, and joystick of the phone stop working.

2. The phone does not boot, the display is filled with white.

3. The phone does not respond to the charger and does not turn on.

4. The speaker or microphone of the device stops working.

5. The screen backlight is uneven, streaks are visible, the front glass is fogged up.

Do not connect any accessories or charger to your phone under any circumstances. In any of the above cases, you urgently need to seek help from your nearest workshop. The sooner you contact, the greater the chances that the phone will be restored, the less costs will be required to repair it.

There is no online registration.

If the phone no longer “sees” the operator’s network or registers with it (there is no sign with the operator’s name), you first need to make sure that the problem is not with the SIM card in the phone. Try inserting a known working one SIM card, it is possible that it was damaged, its validity period has expired or it has failed. If the situation does not change with a working SIM card from another device, then the problem lies with the cell phone. The cause of failure can be a variety of malfunctions: internal mechanical damage, to a malfunction in the phone’s control program. Such malfunctions can be diagnosed and repaired by a technician in our cell phone repair shop.

The cell phone display does not show, the screen does not show or is filled with white.

If your phone display does not show images or is filled with white, then the most common solution to the problem is to replace it. Often the display fails after the phone is dropped on a hard surface or has another mechanical impact, such as a blow or bend, in which case it may have colored streaks. Sometimes the cause of the breakdown may be a cable from the board to the display or other failed electronic components. If the display glows white or artifacts appear on it.
, which may disappear and appear again, the cause of the breakdown is most likely the cable connecting the main board and the display module. Often cables deteriorate on phones where the display is on the moving part of the phone, on the so-called “sliders” and “flip phones”. Other reasons for display malfunction may be moisture getting into the phone or a malfunction of the phone software, the so-called firmware. All Faults of this kind are successfully diagnosed and eliminated by qualified technicians who have special equipment and tools. The exact cause of the breakdown will be told to you in our service center after diagnosis.

The display image has color streaks or is missing in parts.

The screen may have bright colored or white stripes. One of the most common causes of such defects may be a faulty cable (see point above). The same fault may manifest itself differently on different phones. The most susceptible to such breakdowns are “sliders” and “flip phones”, where the connecting cable is subject to mechanical wear as a result of moving parts of the phone, which, in principle, is provided for by the design, but all parts have extreme strength. However, such malfunctions can be caused by moisture getting inside or failure of electronic components. The technician will be able to name the reason only after a complete diagnosis of the device.

The speaker on the cell phone does not work, the caller cannot be heard or the call signal cannot be heard.

When you cannot hear the person you are talking to or the call signal, or hear it very quietly and increasing the volume level does not help, then the most likely cause of the phone defect is a faulty speaker. Its replacement is enough standard procedure and does not require much time. If spare parts are available, in some cases repairs can be performed directly by contacting our workshop. However, the cause of such a defect may be a failed connecting cable connecting the phone board and the speaker. This breakdown can be considered typical for mobile phones with moving body parts, because... during their use, the cable may “fray” or the material from it gets tired and begins to break, a crack appears in the conductors, breaking contact. The malfunction is not complex and repairing such defects does not take much time.

The subscriber cannot hear you or hears you very poorly.

Make sure that your phone and the subscriber's phone are outside a closed room or near a window, and the signal level from the operator is not the last value on the screen, but at least 2-3 bars. If your interlocutors cannot hear you during a conversation even when you are in an open space, then most likely the problem is that the phone’s microphone has failed. Often a cell phone microphone malfunction is caused by moisture getting into the microphone. It must be replaced at a service center. Replacing a microphone is not a complicated repair and can be done fairly quickly. However, there may be phones with similar symptoms, in which the microphone may be working, and the reason may lie in a malfunction of the connecting cable. In this case, the cable is replaced with a new one.

The cell phone does not turn on or does not charge.

If mobile phone If the battery has stopped charging, you should first check the serviceability of the charger and its connectors. Most often it is this that fails, because... The number of chargers in use and not produced at branded factories is very large. You can check this device by replacing it with a known good one, or by connecting a phone with a similar connector to the charger being diagnosed. If the charger is working, then the problem may be with the phone's charging connector. More precisely, in its wear or loss of contact with the main board. It often happens that by pressing the charging connector more tightly or by changing its angle or shaking it, it is possible to temporarily indicate the charging process. In this case, you should contact a service center, which will replace the connector.

If the charging indicator shows that the phone is charging, but in fact this is not happening, then the exact cause of the malfunction after diagnostics will be determined by the service center. There are many reasons for such a breakdown, one of them is a faulty battery or charge controller. If the phone does not respond to charging and does not turn on, the battery may be very discharged (storing the phone) - leave the phone on charge for a few minutes. If everything is fine, the phone should turn on. If this does not happen, try turning on the phone with a known charged battery. In cases where this does not help, it is the phone that is faulty. Be sure to remove the battery from the phone and contact a repair shop; only qualified diagnostics will reveal the cause of the breakdown. The culprit may be a software failure, a malfunction of the battery controller, or mechanical damage to the phone. Contact the service center.

The mobile phone cannot turn on or boot completely, freezes, or becomes glitchy.

If your phone at some point began to work with long delays when navigating the menu, “freezes” and is glitchy (failures in sending and saving SMS, viewing or listening to recordings, games, calling up the phone book) or periodically reboots, then most likely In general, the matter is a software failure and you need to update the software (“reflash”) the cell phone. Another reason for such failures and malfunctions may be mechanical damage to the phone board or its elements. This usually happens after water gets into the phone, serious shocks, or falls. The reason for the failure can only be determined in the service center.

The joystick and some or all buttons do not work.

These defects often appear either due to mechanical damage to the cell phone or due to water getting into the phone. In the first case, most likely, you will have to change the board with the keyboard or the cable leading to the keyboard. In the second case, washing and drying faulty spare parts or replacing them will help. Diagnostics at the service center will determine the exact cause of the malfunction of the mobile device.

The phone requires you to enter a “code”.

If your phone refuses to turn on or perform any actions without entering the security code or phone code, then most likely you need to enter the code specified in the instructions for the device. If you changed the security code and forgot it, or you couldn’t find it in the description, then updating your phone software will help you. Be careful, changing or updating the software erases all data on the device (contacts, SMS messages, photos, etc.).

We are glad to cooperate!

Here are examples of typical cell phone malfunctions and possible solutions to these defects:

Doesn't turn on- the cause of this malfunction may be a number of malfunctions. In fact, with such a diagnosis, the phone may simply have a discharged battery, or it may have a defect in the system board, i.e. You can simply charge the battery and continue to use the device without worry, or you can throw away the phone without a second thought.
Along with these two extreme manifestations, the device may similarly exhibit malfunctions in the power controller or a malfunction in the device’s processor, or moisture or liquid that previously entered the product, oxidizing the system board of the device, prevents the normal operation of the phone. From all of the above, one thing is clear - this defect is the most unpredictable and when repairing such a device, diagnostics should be carried out most carefully in order to thoroughly understand the malfunction and eliminate all existing defects in the operation of the phone.
No indication on display– the cause of this defect can also be a number of malfunctions. In the case of clamshell or slider phones, this defect is a consequence of damage to the cable (flexible connection between the system board and the display) that controls the device’s LCD indicator. In addition, there may be malfunctions in the operation of the image controller, or the display of the device itself may be damaged. Among other things, the cause of this malfunction may be other malfunctions of the product, but this happens much less frequently.
Discharges quickly- Problems with the battery. Entry of liquid or other foreign substances. Damaged motherboard device after impact or mechanical impact. The transmitter is damaged. The power controller is damaged. The battery charging circuit is broken. The power supply circuit of the device is malfunctioning.
Blocked. Asks for code. - User code has been entered. Blocked due to a software glitch.
Freezes and reboots
Stuck on phone book- Software glitch. The system board of the device is damaged after an impact or mechanical impact. Entry of liquid or other foreign substances. Product processor defect. The flash memory chip is damaged.
Freezes when turning on the camera- Software glitch. The camera is damaged. The system board of the device is damaged after an impact or mechanical impact. Entry of liquid or other foreign substances. Product processor defect. The camera cable is damaged. The flash memory chip is damaged.

History of creation and modernization of mobile Samsung phone, has been going on for about thirty years, the first device was released in 1988. Many users choose this device because of its high quality and prestige. Fans of such gadgets are willing to pay decent money for new models, and various publications mention the brand’s phones as top sellers. But, like any technology, these devices fail over time. If Samsung phone not working, then the causes of breakdowns can be very diverse:

mechanical breakdowns due to falls or impacts;
software failures during updates or viruses;
chemical oxidation due to liquid ingress.

Any of these reasons can affect, for example, how the speaker performs and how clear the sound of the device is. When the touch screen on your smartphone does not work, this may also be a consequence of the above reasons. A fall or moisture may cause the keyboard on your smartphone to fail. If the phone does not turn on, then software glitches are also often the cause of this. Speaking about the most common problems, the list of leaders remains unchanged:

broken screen;
The touchscreen does not work;
no vibration when calling;
power problems (charging, on/off, charge storage);
MIC is not working;
Volume rocker buttons stick;
the camera is not recording;
damage to the housing, etc.

In any case, you should contact the service center professionals to repair your mobile phone.

The sensor, camera, screen on a Samsung phone does not work, how to deal with malfunctions

If Samsung phone sensor not working, you first need to determine the cause. When the problem is moisture ingress, it is enough to open the smartphone and dry it (not after a deep, long swim). But if this is a program failure or mechanical damage, then the intervention of professional specialists is necessary. Repairing all these problems is guaranteed to be possible only in a service center that has high-precision equipment and parts, but not like a neighbor who has a soldering iron and not independently with a book for novice craftsmen.

When the smartphone screen does not work correctly or glows white, the cable connecting the boards may need to be replaced. To repair a cell phone, you should not go to handicraft workshops, which can damage your smartphone. You should treat your gadget with care and carry out repairs only in specialized centers that will provide the following services:

free full diagnostics;
recovery after liquid ingress;
gadget firmware;
replacement of complex microcircuits;
installation of radioelements, modules and components, and much more.

In turn, we provide all possible services for repairing and setting up smartphones, and also provide guarantees for our work, because we employ the best specialists. Our craftsmen also provide the following popular services:

What to do if the SIM card does not work on your Samsung Duos phone

If the second SIM card does not work on your device, try rebooting the gadget. If there is no visual damage visible on the SIM card, the flash drive or SIM reader may be broken. A situation where Duos does not see a flash card occurs when the card’s control chip breaks down. In cases where the smartphone cannot access the Internet, you should check whether the settings are lost. If a mobile phone falls, it may suffer mechanical damage, which will also affect the operation of the device.

If there is external damage, for example, the power button is broken, access to the operation of the entire device will be lost. It is recommended that in case of all the above malfunctions, as well as many others, contact gadget repair specialists. Only professionals will help diagnose and fix these breakdowns.

Smartphone Samsung gt s5230, Galaxy s4 and others: price depending on model

There is nothing complicated in constructing a pricing policy, and they lend themselves to market principles. The newer and more complex the technology, the more expensive it is to replace the part and the repair procedure as a whole. So in common budget models gt s5230 spare parts cost pennies, but in more advanced ones galaxy models s4 and higher are more expensive. Our workshop is open for you in Kyiv six days a week and engineers are able to detail prices for any Galaxy or any other device.