Do-it-yourself tablet does not turn on

In detail: do-it-yourself tablet repair from a real master for the sitemy.housecope.comis not included.

You are reading this article because you cannot start your tablet. There can be many causes of malfunctions, they can be both hardware and software. But that's not what this article is about. Why the tablet does not turn on and how to reanimate it, we will consider in this article in more detail.

Method 1: check the charger

In order to check the charger, it is easier to use a multimeter. The tablet should output 5, 9, or 12 volts. If there is no multimeter, then ask someone for a charger with the same connector as on your tablet, but be careful that the voltage of the charges is the same. The charger often fails. Most of the time this happens with Chinese tablet models. If the charging cord has a USB connector, you can try charging it through a computer. It should be borne in mind that the cable itself may be damaged. It is better to ring the cable first or replace it with a known good one.

Method 2. Reboot

Restarting the device may also help to enable the tablet. You need to hold down the power button for 10-15 seconds. You can do this a couple of times, just try it with the charger connected. If the tablet does not turn on in these cases, then you need to find a small hole on the tablet with the RESET inscription. Press the button with a toothpick or similar object.

Method 3. HARD RESET

If nothing happens after the reboot, then the Bootloader is damaged. Bootloader is a bootloader that controls the operating system kernel to boot the tablet normally. Then H ard Reset should help. It is important to remove the SIM and memory card from the tablet before proceeding. To do this, you need to hold down the power buttons and the volume rocker and up or down (depending on the model of your device). A menu will start, in which you need to select the item Settings, then F ormat system.

Video (click to play).

Method 4: Broken Power Button

The tablet may not turn on due to a broken power button. As a rule, the button has a characteristic click and should return to its place after being pressed. If this does not happen, you need to check it with a multimeter. Most likely there are 4 contacts, you can try to solder the button.

Method 5: battery check and

You need to disassemble the tablet, disconnect the cable or battery power connector and connect the power supply to it. Next, you need to use a multimeter and check the voltage at the output from the battery.

If you have a 3.7 Volt battery (5 Volt charging), then the voltage should be between 3.9-4.2 Volts;

If you have a 7.4 Volt battery (9 Volt charging), then the voltage should be between 7.9-8.2 Volts;

If you have a boosted 7.4 Volt battery (12 Volt charging), then the voltage should be between 7.9-12.2 Volts.

If the voltage is lower, then the battery is out of order.

Method 6: checking the display

It happens that the tablet turns on, but the screen is black. And it seems that the tablet does not turn on. You need to be sure that it is charging, then turn it on and wait 15 minutes. The tablet should warm up slightly on one of the sides. If so, there is a problem with the display itself. You need to disassemble the device and look at the pins that connect the display to the board. Maybe the latch came off, this happens most often due to falls.

Method 7. Repair at a service center

If these recommendations did not help you, or you do not have time to deal with the malfunction, you can bring the tablet to the ITSA service center for repair. The advantage of having a repair done at a service center:

professional equipment for repair;

work experience of masters 5 years;

1 month warranty for the work performed;

availability of branded original spare parts.

If you want to save time and not put your device at risk, tablet repairs in Odessa are outsourced to an IT service center.

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Tablet does not turn on - do it yourself tablet repair

Topic of the article - the tablet does not turn on and do-it-yourself tablet repair... The reasons may vary. A number of reasons can be associated with the "iron" filling of the apparatus. Also, the reasons may be hidden in the OS failure. Either way, there are some actions that users can take to fix the problem on their own.

It's important to remember when the tablet was last charged. When fully discharged, sometimes ten minutes of charging is sufficient for the device to turn on. During charging, press the power button with short interruptions for a minute to turn the device back on. Of course, the charger must be in good working order.

If the charging option did not help solve the problem, then it is recommended to carefully examine the tablet for mechanical damage.The presence of chips on the screen or dents on the case may indicate that the device has been dropped. As a result, the reason is obvious. If there is a guarantee, you should go to the service center.

Tablet does not turn on - do it yourself tablet repair

In this case, the reason lies in a software failure. For example, the backlight may turn on, and then the inscription "АNDROID" or a picture of an idle green robot appears. Here the reasons are as follows - incorrect installation of applications and forced termination of system processes. As a result, suffered tablet firmware.

You can restore the device using the Hard-Reset or Hard-Reset program. By the way, the program can be found on the Internet. So, with the help of Hard-Reset, you can reset the factory settings of the tablet. The principle of action in this case for most models, especially Chinese ones, remains unchanged:

You need to turn off the tablet.
Now you need to remove the SIM card and micro card.
It is necessary to hold down the volume up button for ten seconds - while the vibration of the tablet is felt.
Using the volume and power buttons, you need to select the "Setting" settings in the menu, and then - "Format System".
Now you need to select "Reset Android".
At this point, the tablet will reboot.

The specified procedure will lead to the fact that the data will be erased. If it's clear how to flash a tablet, then you can repeat the procedure in case of failure the first time. Nuance - sometimes the result can be negative. In this case, it is recommended to think about a complete flashing of the device. On the site you can find information about how to flash Android do it yourself.

There are several reasons why the tablet power button might not respond. However, the device can be turned on. In this case, you can turn on the device when it is completely discharged:

First you need to connect the charger.
You need to simultaneously press the volume down and power buttons.
Using the volume down button, in the “bootloader” menu, select the “powder off device” section.
The option should be selected with the power button.
After turning off the tablet, you need to disconnect the charger.
Now the tablet needs to be connected again - the charge indicator should appear on the screen.

In principle, that's all. If now the tablet does not turn on and does not want to charge, then the charger and power supply should be checked. As for the power button, mechanical damage is also possible. In this case, you should disassemble the device and restore the button (replace, restore paths, eliminate broken contacts, etc.).

Sometimes tablet repairs can be very expensive. And sometimes not all firms undertake the repair of Chinese tablets. But sometimes repairing a Chinese tablet is simple and not expensive!
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We are all accustomed to mobile technologies and it's hard to imagine how we would live without mobile phones, tablets and other familiar gadgets. However, sooner or later they fail. There are many reasons for breakdowns and breakdowns themselves, and they are all different. And now your tablet is broken. In order not to part with it for a few days, giving it to a service center for repairs, there comes a desire to repair it on its own.Where to begin?

You need to start with diagnostics, i.e. understand the cause of the breakdown. There are breakdowns that can be seen with the naked eye, such as a broken touchscreen, a broken connector, a wheezing speaker. But determining why the tablet turned off and does not turn on is much more difficult. Here the Internet comes to the rescue, where you can find special diagnostic programs. And now, having identified the cause of the breakdown of the tablet, it was decided to repair it on our own. To do this, we need a minimum set of tools (if you need to disassemble the tablet):

1. A set of magnetic screwdrivers;

3. A blade for disassembling the body;

4. Thin double-sided tape;

5. Video instruction or step-by-step guide with photos for disassembling your tablet.

Let's describe those types of tablet repairs that are quite possible to do at home:

1. Re-flashing the tablet. It is needed if programs close themselves or constantly give errors, the tablet restarts or freezes. Many tablets have a reset button or a combination of buttons by pressing which you can reset all parameters and return to factory settings. If this does not help, you can reflash the tablet through the official website. Z We go to the official website of our device and look for our model. If new firmware is present, it will most often be archived. After downloading the firmware in .zip, .rar, .7zip format, launch a special program for Windows, which will automatically update your device.

Replacing the battery. The battery on the tablet has stopped holding a charge or is not charging correctly, which means it needs to be replaced. The back cover is removed from the tablet, you find out what dimensions the old battery has, you can choose a larger capacity. Remove the battery and install a new one on double-sided tape. Solder the wires: red to red, black to black. That's all, the battery replacement is complete, the main thing to remember is that it is strictly forbidden to close plus and minus.

Replacing the touchscreen. The glass is broken or the sensor stops responding to touch. In order to replace the sensor on the tablet, you need to disassemble the tablet and look at the markings on the touchscreen cable. By marking, you are looking for a new touchscreen (if there is no marking, then by the name of the tablet). Having bought a new touchscreen, disconnect the old one and connect the new one and check the functionality. If the sensor works, disconnect the old touchscreen by warming up with a hairdryer. Use double-sided tape to glue a new one. Collect the tablet.

The rest of the repairs are strongly discouraged at home. Self-repair is advisable only for minor breakdowns. The replacement of parts that are soldered to the device, and not by cables or connectors, should be entrusted to professionals.

The advantage of having a repair done at a service center:

professional equipment for repair;

experience of craftsmen;

guarantee for the work performed;

availability of branded original spare parts.

If you want to save time and not put your device at risk, tablet repairs in Odessa are outsourced to an IT service center.

Regardless of the cost and characteristics of the technology, problems can appear with any gadget. If you are reading this article now, it means that something has happened to your tablet computer, for example, it does not work. Before you run to the service center, send the gadget for repair and pay for diagnostics, you can try to find out for yourself why the tablet does not turn on.

You can find out the reasons why the tablet does not turn on yourself

The reasons for the breakdown can lie both in the software of the Android OS and in the hardware. Of course, after a serious fall, it will most likely be difficult to fix the problem on your own. But if the tablet stops turning on after installing the application or updating the firmware, then you can easily cope on your own. But first things first: let's deal with the diagnosis by symptoms.

There are many reasons why the tablet may not turn on.In order to restore the operability of the device, the most commonplace breakdowns should be excluded:

Check the battery first. It's not funny, but many gadget owners simply forget to put the device on charge in time. Android models may not show signs of life for another 10 minutes after being connected to the power supply. Doesn't it turn on anyway? Make sure the charger is working properly.
Make sure the power button is working. To do this, we recommend that you listen, because when pressed, a click should be heard. The problem is treated with soldering, but it is better to entrust this kind of work to a specialist. In the event that the period of warranty service has not ended, all the more, it does not advise to engage in amateur activities.
Make sure the tablet is not damaged. For example, if he spent some time in the hands of a child, then it is worth looking for cracks or dents on the case. In this case, the repair should also be entrusted to professionals, because it will be difficult to independently identify the exact cause of the problem.

If the Android tablet does not turn on, and you do not have the opportunity to contact the service center, you should try to reanimate the gadget yourself. At the same time, you, of course, must be aware that if it fails, it may no longer be repairable.

First, you need to exclude the following situation - the device is working, but there is no image. This is quite easy to do. First, you charge the tablet, then turn it off. After 20 minutes, turn it on, wait two minutes and check the back cover: it should warm up a little. If this is the case, then you will have to disassemble the gadget and check the cables. Also, the problem may be hidden in a burnt-out video card - then the repair will not be complete without soldering.

Breakdowns associated with the power supply system are also common. In most Android models, the battery is soldered to the motherboard with wires. Sometimes the batteries are connected using a ribbon cable or connector. Therefore, you need to check the contacts first. If everything is connected correctly, then we continue to troubleshoot.

Often, the device may not turn on due to a failed battery. In this case, it would be nice to measure the voltage supplied by the battery and from the board. To measure the voltage of the board, you need to remove the battery and connect the charger. As a result, you should receive the following data:

when charging at 5 V, the battery has 3.7 V, and 3.9-4.2 V is supplied from the board;
when charging at 9 V, the battery has 7.4 V, and 7.9–8.2 V is supplied from the board;
when charging at 12 V, the battery most often has 7.4 V, and 7.9-12.2 V is supplied from the board.

If your measurements correspond to the above data, then there is no problem with the power circuit. In this case, looking for the reason why the gadget does not turn on is in the board malfunctions or the bootloader failure. In any case, "self-medication" is contraindicated, and it is worth seeking help.

Consider now such a case - your gadget turns on, but an endless screensaver with the inscription "Android" or with the image of a broken robot freezes on the screen. Here the reason is a software glitch. It usually occurs after installing updates, new applications, forced termination of system processes.

Tablet may not turn on due to software glitch

What is the best way to proceed in this situation? It is worth trying a factory reset. You will lose all your data, but you will get a working device. To carry out a hard reset, you need to get into the RecoVery mode. Depending on the model of the gadget, pressing one of the following key combinations will help you:

volume up, volume down and power button;
power button, home key and volume up;
power button and volume down;
power button and volume up;
decrease and increase the volume.

Next, you need to find the "wipe data / factory reset" section, after selecting which, feel free to press "yes - delete all user data".Then choose "Reboot System". Moving between items in the RecoVery mode is carried out using the volume rocker, and the selection is confirmed with the power key.

If you could not find the reason yourself, then you should contact the service center

In cases where hard reset is powerless, you can try to reflash the device. But for this you need to be rooted. In most cases, this means that you will void your warranty. In addition, you act exclusively at your own peril and risk, so no one gives any guarantees of a positive result. Before doing this, think about contacting a service center.
Of course, with any attempts to repair the tablet on your own, there is a risk of finally breaking the device. Therefore, without some knowledge of electronics, you can only do a factory reset and make sure that the charger is working properly.

Especially often there are typical "diseases" in inexpensive Chinese models. If you know about such problems, then share your experience and methods of "treatment" with our users. You still decided to take up the analysis of the gadget? Search online for instructions for your model.

A sus tablet won't turn on? DIY repair

Faced with such a problem when the Asus Zenpad, Fonepad, Nexus 7, Memo Pad, Transformer, tf300tg or other models do not turn on, try to diagnose yourself. Having found out the reason, simple defects can be eliminated with your own hands.

The very first thing that you should rule out is a deep discharge of the battery. This happens when you use the gadget with a charge indicator value of 10% or less. The nominal value of the battery falls below the minimum and the charger is no longer able to immediately recognize it when connected.

It is necessary to leave the Asus tablet to charge for several hours from the native charger that came with the kit. This is important, since a certain power required by the manufacturer is required. This way you increase the chance of battery recovery without a laboratory device or specialist assistance.

Be sure to inspect the charger itself and the power connector. They must not be mechanically damaged. Test on another device for performance.

The problem of a software failure is typical if your tablet still reacts to the power button. But the operating system does not load. The device either hangs on the splash screen or does not boot at all, while you observe the backlight of the screen.

The reason may be caused by a software failure due to incorrect installation of a firmware update or installation of malicious applications.

Try doing a factory reset yourself. To do this, use a long press on the combination of the lock keys, volume control (up or down) and home. Depending on the model, this combination may be different - experiment. Once in the Recovery menu, find the Reset item by moving with the sound buttons.

Unfortunately, all information will be deleted, do not forget to periodically back up your data.

If you cannot fix the problem in this way, then contact an Asus tablet repair shop. The wizard will perform a high-quality flashing. This often solves a huge part of the defects associated with the operation of your gadget.

During operation, there is a natural wear and tear of components, which leads to their failure. This may be the problem of the matrix cable, battery. And also the failure of the matrix (screen), battery or motherboard themselves. These problems are eliminated by replacing faulty parts. If one year has not passed since the date of purchase, then contact the place of purchase for a manufacturer's warranty restoration.It will be free for you if you followed the rules of use prescribed in the warranty card (there should be no liquid and mechanical damage).

But not necessarily, if the Asus Zenpad, Fonepad, Nexus 7, Memo Pad, Transformer, tf300tg tablet does not turn on, then some kind of serious breakdown has occurred. If you accidentally dropped it or there was intense shaking, there is a high probability that you just need to fix the connection cables to the connection point and the gadget will work again!

The ingress of moisture also has a negative effect. The contacts oxidize and need cleaning to restore conduction. Contact our service and you will definitely be helped!

Be careful and careful when using the Asus tablet, do not ignore the manufacturer's recommendations, observing the charging mode and you will significantly delay seeking specialized help.

You can ask a question to the masters from our service center by calling by phone or by writing your question on the feedback form.

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There is such a situation, you pick up a tablet that worked an hour ago, but it simply does not react and does not turn on. This is quite common. If it does not turn on

tablet, then you can try on your own to try to bring it back to life.

Now we will try to describe the ways self diagnostics of the tablet... What to understand, carry it to repair? Or is it a simple problem that you can solve on your own.

The first thing that might be a problem is the system itself. It happens that the system freezes and stops responding to your power button. Try to click on it and

gain 15 seconds. Then release and press again, as if you were turning on the tablet (2-5 seconds). If there is no reaction, we look on the device case, or

in the manual on the diagram a hole labeled as RESET. We take a paper clip, bend one end and carefully insert it into the hole. There is a button there. Push

until a slight click. Letting go. Now we try to turn on the tablet again.

If the tablet does not turn on, then we put it on charge. We are waiting for 20 minutes. Trying to turn it on.

If, after the above, it still does not turn on, check the charger.

If it is possible to check with a multimeter, great. If not, you can contact a friend, or pick up a similar charger with the same voltage and

connector (connector). Typically, tablets have 5v, 9v, 12v charging options. More often found at 5. If yours is at 5 and the plug is like mini or micro usb, then

you can connect it to a running pc via the appropriate cable. As a rule, such tablets are recharged from usb. We wait 20 minutes, then try to turn it on.

The tablet does not turn on what to do

In this case, the problem may be as follows:
1) the power button itself does not work (usually the characteristic click disappears when pressed). It is required to solder it in place.

2) The tablet actually works, there is simply no image. It may feel like it's turned off. In this case, charge for a couple of hours.

Then, hold the off button for 15 seconds (or press reset). Wait 15 minutes for the tablet case to cool down (the back cover may get warm when charging). Now

Try to turn it on (3-5 seconds the button is on) and wait 2 minutes. The back cover should get a little warm (literally a little). If this happened, and

it is not hot enough, which means the tablet is working properly and there is simply no image. In this case, the tablet needs to be disassembled, and the cable from the matrix to the

system board. It often happens that it simply pops out of the clip and the image disappears.

3) Battery. Some tablets have a programmable power controller that will not turn on the tablet if the problem is with the battery or not at all. So,

if you open the device, immediately see if the battery is connected.In tablets, the battery is soldered by wires to the motherboard, or connected

connector or ribbon cable. In general, we checked it out. All top type.

Now, if possible, measure what voltage the battery gives out and how much goes from the board to the battery (disconnect it from the board, plug in the charger) and

measure the voltage at the contacts of the board, terminals, loop (black-red +).

If your charge is 5v, then your battery is 3.7 (the charge current from the board to the battery should be 3.9-4.2v)
If your charge is 9v, then the battery is 7.4 (the charge current from the board to the battery should be 7.9-8.2v)
If your charge is 12v, then the battery is most likely also 7.4 (the charge current from the board to the battery should be 7.9-12.2v)

If everything matches the above, then the power supply circuit is working. Your tablet may not turn on due to a crash in the bootloader.

If the nutritional data differ, then your friend needs a qualified repair.

Author: Denis

Any user after the expiration of the warranty period may be faced with the question of how to disassemble his dns airtab tablet. This may happen for various reasons. Very often, the tablet computer starts to work in a strange way and all of its behavior indicates that some wires have fallen off inside. For example, the tablet battery is not charging. Or wi-fi suddenly stops working. I used to work and suddenly [...]

Author: Denis

Quite often, you can come across a situation where the user sets a password to unlock the tablet, and later cannot unlock it. Either due to the fact that the password is forgotten, or, it seems, enters the correct password, but it does not work. We have to scour the Internet in search of an answer to how to unlock the tablet. And it doesn't matter if it's DNS AirTab, or any other tablet on [...]

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