Samsung tablet does not work. Samsung tablet won't turn on

As we all know, the line of mobile devices from Samsung has dozens of models. This includes, for example, both smartphones and tablets developed in the Galaxy class.

The device discussed in this article also falls into this category, as evidenced by its name. We'll talk about the Tab 2, a seven-inch tablet released back in 2012 that was once one of the most powerful devices in the line. The article will provide characteristics of the device, a description of some of its modules, as well as customer reviews.

General information

Today the device, of course, is outdated - you can judge this at least from the technical description of the device. If at the time of its release the tablet could be called a fairly strong player on the market (due to its high-quality build and fairly advanced equipment), now even in the budget price class there are sometimes more powerful versions available. Nevertheless, this is the peculiarity of the device - at the time of its release it was in demand and had current technical parameters. In addition to them, we can note the ergonomic, stylish design and high-quality materials from which the model’s body is assembled. And all this - for 15 thousand rubles in the version without a 3G module and for 20 thousand - with one.

However, let's start talking about everything in more detail so that you can understand why this device is so good.

Equipment

The device is presented from the moment of purchase in the most classic set. This includes the tablet itself and the charger, which consists of two parts - a USB cord and an adapter for connecting it to the power supply. There is no film on the tablet screen, but there is one on the adapter. The equipment is meager when compared with Chinese devices, but quite familiar for such well-known companies as Samsung.

Design

Externally, perhaps, the Tab 2 is not much different from some modern devices. This is gray plastic, painted to look like metal, smoothed edges, no right angles. For Samsung, this design at one time formed the basis for further models - just when the company abandoned the “proven” (at that time) copying of Apple devices. Thus, we can say that this is one of the earliest design solutions from the Korean holding. However, due to its prevalence, this appearance certainly cannot be called unique.

Due to the smooth edges, holding the tablet is quite comfortable. Judging by the placement of the logo on the front bottom of the device, the manufacturer expects to work in a vertical variation, classic for 7-inch tablets.

All navigation is located on the right side of the case - these are volume control buttons and a key for unlocking the Samsung Galaxy Tab 2 screen.

The opposite, left side of the device has holes for a memory card, which allows you to significantly expand the capacity of the device, as well as for a SIM card (if we are talking about a version of the tablet that supports 3G networks). These sockets are hidden under a special latch, which makes working with them convenient and provides some protection for the functional holes from dust and moisture.

On the bottom edge of the device you can see a socket for charging a tablet (which also serves as a connector for connecting to a PC), as well as speakers under a special mesh. They are located in such a way that when working in a horizontal position with the tablet, the speakers will not be covered.

Screen

Manufacturers installed a display operating on a PLS matrix on the Samsung Galaxy Tab 2 tablet. At its core, this is a competitor to IPS screens, which Samsung brought to the market. She uses her development on different models, and all are characterized by special, soft colors, which are somewhat more difficult to distinguish in sunlight. Therefore, be prepared for the fact that working with the tablet in bright weather will be somewhat problematic - only the maximum brightness will save you.

The resolution here is at the level of 2012 - it reaches only 1024 by 600 pixels, so you shouldn’t count on high image density (it will be at the level of 170 pixels per inch). But the display works with the multi-touch function, which recognizes up to 10 touches.

Also, if you look at the characteristics of the Samsung Galaxy Tab 2, you will notice the presence of a light sensor. As tests show, it does not work entirely accurately, so it is more comfortable (reviews confirm this) to switch the tablet to manual mode for determining the screen brightness and setting it yourself.

Battery

As we all know, the problem of autonomy is relevant for many mobile devices, especially those with small screens and overall dimensions. As for the Samsung Galaxy Tab 2, user reviews speak of it as a fairly autonomous device with a strong, durable battery. At least the technical description talks about a battery capacity of 4000 mAh. Due to optimized energy consumption, the device can last in the most intensive use mode (playing HD video with maximum volume in headphones) for up to 5 hours. Of course, with a more moderate charge consumption, the Samsung Galaxy Tab 2 tablet will be able to please the user with longer work.

Let us immediately note that you won’t be able to replace the battery yourself here - the back cover of the tablet is closed, and the holes in the left side of the case are used to work with the SIM card and microSD.

CPU

In terms of performance, there can be no complaints about the device - the tablet, according to the owners, works perfectly even under heavy loads. This is facilitated by the TI OMAP 4430 processor stated in the characteristics of the Samsung Galaxy Tab 2, which has a clock frequency of 1 GHz and operates on two cores. The device operates with 1 GB of RAM, which, in principle, is enough to perform standard tasks. Although, of course, there are reviews in which people expressed wishes that the manufacturer increase this figure to at least 2 GB.

According to tests, the web browser on the Samsung Galaxy Tab 2 (to which we devoted a review) works faster than other tablets with a 7-inch screen released in 2012. The developers achieved this precisely due to more productive filling.

Camera

We all understand that using a tablet computer to take pictures and shoot videos is not very convenient. Nevertheless, manufacturers continue to equip their devices with cameras. The same applies to the Galaxy Tab 2.

According to the technical specifications, the tablet has a 3-megapixel main camera that allows you to take pictures in a resolution of 2048 by 1536 pixels. In addition, the video creation function is supported (720 p format). In addition to it, there is also a front camera for taking “selfies”; traditionally it has a lower resolution (only 0.3 megapixels).

As customer reviews indicate, pictures on the device are quite acceptable (using the main camera), while working with the front camera can only be discussed in the context of conversations on Skype and other instant messengers.

operating system

Of course, traditionally the device from the Korean company Samsung runs on Android OS version 4.0.3. This firmware has been on the device since it entered the market. As for the updates, they probably reached modification 4.2.2, after which the company refused to adapt the following parts of the operating system. That's why you won't see version 5.1 here.

Included with this version of the system is a graphical shell called TouchWiz, which is known for its special design and operating logic. It could also be seen on other devices from Samsung, in particular, on the Samsung Galaxy S3.

Multimedia

With support for multimedia files on the tablet, things are excellent. It's all about pre-installed software from Samsung, which allows you to recognize most of the formats available today. Problems such as “video (or audio) does not turn on on Samsung Galaxy Tab 2” are extremely rare. You can combat this by simply installing additional players (for example, MX Player would be an ideal solution for this). This applies in particular to the MKV format. However, if you do not take this into account, you can also work with standard applications - they have all the functionality necessary for this.

Connection

In terms of communication capabilities, the tablet we are describing is not much different from most gadgets on the market. If you go into the settings presented on the Samsung Galaxy Tab 2, you will notice that there is Bluetooth support for sending and receiving files, there is WiFi for working with wireless landline networks, and a GSM module is installed, which allows you to make calls and send messages as if from a phone. In addition, the buyer can choose a package that will include a module for 3G - then the device will gain even greater mobility, having the ability to work in networks.

What to do if your Samsung tablet won't turn on?

Don't panic if your Samsung tablet won't turn on. Carry out a thorough diagnosis yourself and you may not have to contact a service center. Of course, if the reason is not significant and professional repairs are not required.

Mechanical damage

If you fall and receive a strong impact, various components of your gadget may fail. The screen, power button cable, power controller, battery, or main board could be damaged. If these elements fail, the Samsung tablet will not turn on or charge. In this case, unfortunately, only a professional diagnosis will help.

Liquid ingress

If your gadget has been damaged by moisture and you have taken the necessary steps to eliminate the negative consequences, but the Samsung tablet still does not turn on, then in such a situation you need to disassemble it and inspect the extent of the damage. Oxidation and corrosion of contacts and components lead to the need to clean and replace elements that cannot be restored.

Battery completely drained

The Samsung Galaxy, Tab 2, Tab 3, Note, Note 10.1, Note N8000 tablet does not turn on and does not respond to the charger due to the battery being deeply discharged. This is a very common occurrence and the problem can be solved by leaving the gadget on charge for a long time - from 30 minutes to several hours.

This happens when the battery voltage drops below the nominal voltage, which is indicated in the technical specifications on the marking sticker.

Battery problem

The reason why your Samsung tablet won't turn on may be due to a faulty battery. If the gadget does not respond to charging and the charger itself works properly on other devices, then remove the battery and check it with a multimeter.

A healthy battery will produce the minimum rated voltage. A faulty one will give a zero result. Replace the battery with a new one.

Software glitch

Due to incorrect operation of the Android operating system, there may be software glitches that lead to such a problem that the Samsung tablet does not turn on. The solution will be such manipulations with the gadget as: rebooting, resetting the settings to factory settings and flashing the firmware. Experts will help you install new firmware - contact Samsung tablet service. But you can do a full reboot or go to the recovery menu to reset the settings yourself. Well, provided that there are no serious hardware faults.

Power button doesn't work

The broken power button cable needs to be replaced. When a Samsung tablet won't turn on due to a broken Power key, you can fix the problem yourself only with the necessary skills and tools.

In another situation, in order not to damage the gadget, you should contact a repair shop.

The screen does not work

It is likely that the device still turns on, the display just does not work. When faced with a black screen on your Samsung tablet, examine it from different angles and lighting. Perhaps the backlight simply does not work and you will be able to see application icons on the desktop. Insert the SIM card and try calling this number. Pre-charge the tablet and perform the power-on action. Such diagnostics will allow you to understand whether the Samsung tablet really does not turn on.

Other hardware problems

More serious hardware faults can be identified by Samsung tablet repair service center specialists. By seeking professional help, you will receive an accurate diagnosis of the declared defect using the necessary equipment, as well as a guarantee for the work performed.

There is a lot to be said. The problem is common. The user is used to sending letters, surfing the Internet, listening to music at any time and anywhere, and no longer wants to part with these benefits even for a day. Conclusion - use the device carefully and taking into account the manufacturer’s recommendations. We will give the main causes of breakdowns and tell you how to get rid of them. Consider the following:

• Power supply problems;
• The power button is broken;
• BIOS error;
• Software or OS failure;
• Broken screen unit;
• Problems in the power circuit;
• Faulty loops;
• Consequences of corrosion;
• Hardware damage;
• Recommendations from the Service Center.

SAMSUNG tablet power supply problems

The first thing you should think about is whether the battery is dead. If connecting to a power source does not change the situation, option number one is that the charger is broken. Then check which charger you are using to see if it matches the model. If not, connect the original one. Option number two - the power connector does not work. In this case, you need to clean, solder or replace the faulty socket. But don’t rush to grab a brush and a screwdriver—do-it-yourself repairs can have unpredictable consequences. In order not to break it completely, contact the service.

If your Samsung tablet does not turn on because the battery has run down to zero, the indicator will still not light up for a couple of minutes when you connect the power - you just need to wait. One more thing: you cannot discharge the battery 100%. This shortens the life of the tablet.

Another reason that is easy to determine is a broken on/off button. It happens due to careless handling. For example, they pressed too hard or pressed for too long, as a result of which the contact came off. You can check it as follows: if you don’t hear a click when you press it, the device does not turn on, the button is really broken. To restore the device at the Service Center, the device is disassembled and the contact is soldered in place or the faulty part is replaced.

BIOS error

The device seems to turn on, but freezes on the screen saver or the Samsung inscription is constantly lit. This could be due to a software error or hardware malfunction. To restore, we recommend rolling back the device to factory settings: press the volume and on/off buttons at the same time (we first remove the SIM and flash cards so as not to erase the data). The model will work, but the tablet’s memory will be formatted.

If this does not help, changing the firmware is indicated. However, it is not a fact that it will go smoothly and will not give rise to new problems. Reflashing is a complex process and can only be done by experienced Service Center engineers.

Tablet software or OS failure

Typically, Samsung tablets run on the Android or Windows operating system. An OS is a complex of interdependent programs that make up the interface. The user can expand it by downloading applications and widgets, including antiviruses. And failure may occur as a result of their conflict with each other. The solution is to return to factory settings or reflash the device.

Video adapter (screen adapter) is the link between the display unit and the processor. Its role is to form and display an image on the screen. The matrix is ​​the liquid crystal inner part of the screen, and the touchscreen is the outer layer, the touch glass.

If the matrix malfunctions, the device turns on, but the picture does not appear. Replacement of a failed component is required.

Problems in the power circuit

It is useful to periodically check the voltage in the network with a multimeter, voltmeter or phase screwdriver. If it is too low or fluctuates, sooner or later the elements will burn out. For example, the power chip (controller) becomes damaged. Unfortunately, it cannot be restored, so it is replaced using specialized equipment. To prevent the breakdown from happening again, we recommend purchasing a voltage stabilizer.

Faulty loops

Flexible elements that connect parts to each other are commonly called cables. There are many of them inside the case. The main ones connect the battery, screen unit and power button to the motherboard. Due to careless handling and shaking, the cables come off and the tablet does not turn on. It is enough to disassemble the structure and fix the loose elements, and everything will work if the problem is not in the connectors that secure the contacts.

Consequences of corrosion

A humid environment provokes metal oxidation and the appearance of salts. As a result, rust spreads across the microcircuits and contacts. The motherboard tracks are damaged. They are soldered and all parts are washed in a special solution. Drying takes 24 hours.

It is not only the ingress of liquids that causes corrosion. The usual change of weather is enough: we carried the device down the street in the rain, went into a cafe, sat down by the battery - the moisture evaporated and settled on the microcircuits. A special moisture-resistant case can protect the tablet. By the way, it also softens mechanical damage.

Tablet hardware damage

Repair may be required in principle for any component of a Samsung tablet that has been exposed to external influences: display, motherboard, battery, cables - there are many options. And a protective cover is not always able to save you from mechanical damage. For example, it is unlikely to save you from falling from the 10th floor.

If the damage in your situation is not fatal, you will need to repair or replace broken or bent components. The necessary information can be found in the Service Center.

Only a service center engineer can determine the exact reason why the Samsung tablet does not turn on. Don’t get upset ahead of time - the diagnostic results will make adjustments to your expectations. One thing is certain - careful and careful handling, compliance with operating rules are the key to long service life of the equipment. SC provides guarantees for up to three years.

There are often cases when people, having become the proud owners of a new tablet computer, suddenly find themselves in a situation where it turns off by itself and no longer starts or does not work properly.

This can happen for a huge number of reasons, both due to hardware and software damage, with any Android device, including Samsung Galaxy and Samsung Tab.

Possible reasons for the gadget’s failure to turn on

Let's look at each of the possible causes of this problem. Often, you can understand where it lies without resorting to the help of a specialist, and perhaps even fix it yourself without spending extra money on it.

Discharging the gadget

One of the most common causes of breakdown is, surprisingly, the banal complete discharge of the device’s battery. This problem may seem too simple and banal, but this does not make it less widespread.

If the device also refuses to charge, try using a different charger. Perhaps the old one lost contact somewhere and this caused the problem.

Connector failure

There is a possibility that the connector itself or the tracks on the printed circuit board are damaged; this is also worth checking. This occurs due to oxidation or mechanical damage.

If your fears are confirmed, do not try to fix the breakdown yourself, as this may lead to even greater damage. In order to repair the device in this case, a specialist will have to carry out jewelry work.

In this situation, the best option would be to go to the store where you purchased the device and, presenting a receipt with a warranty card, explain what the problem is.

Most likely, they will either replace the device itself or change the non-working connector. If the warranty period has already expired or you purchased a used tablet, you should contact a certified service center.

Liquid ingress

Try to remember if any liquid has come into contact with your Samsung Galaxy. If this really happened, then it was all due to corrosion and rust caused by a damp environment.

Often this situation can be avoided by using a moisture-resistant cover. In addition, it can protect your device from mechanical damage and scratches on the case.

True, in our case the tablet does not turn on and does not charge, which means that oxidation has already damaged the boards quite badly. Such a breakdown can only be eliminated at a service center by cleaning the insides of the device from rust.

Damage to the power chip

If, due to a faulty power chip, the device turns off and stops turning on, you should replace the damaged part as soon as possible. If you ignore it, other components may also be damaged.

Mechanical damage to the hardware component or power button

If you are sure that moisture has not entered the gadget, you should think about possible mechanical damage. It may not work because it was dropped or hit a hard surface. Or perhaps you put a lot of pressure on it by accidentally placing a heavy object on top. It is likely that the device will switch off and stop responding to charging.

It is not uncommon for the power button to be damaged in this way. Try to listen to see if there is a click when you press it. If yes, then this is not what caused your device to turn off and not turn on. And if there is no characteristic click, then the contacts have probably come loose, and you need to check the connection of the key to the contact pad.

Malfunction in the software part

Tablets, like computers, have their own operating system, so a failure in the software may be the reason for the refusal to turn on. In this case, go to the manufacturer’s website and download and then install the new firmware version on your Samsung Galaxy tablet.

It is worth noting that the process of installing new firmware on a non-working device is a complex and risky task. After reflashing, the warranty will be canceled, even if it has not yet expired.

Video core problem

You shouldn’t rule out the possibility that the tablet didn’t actually sit down and even started, but the screen suddenly went dark. This can happen when the video controller is damaged due to overheating.

In this case, you won’t be able to independently resolve the issue of a Samsung tablet charging but not turning on. Contact the service center or change the device under warranty if it still remains.

How to fix firmware problems

Any operating system is not perfect and has its own problem areas in the code and may periodically freeze and not respond. Often, one unsuccessful update can lead to your Samsung tablet not turning on or constantly rebooting.

This problem can be eliminated, but, unfortunately, using a rather radical method. You are unlikely to like it if important files are stored on the gadget, since after it all the device’s memory will be completely cleared, but it will solve all the problems.

Instructions

1. Press and hold the power and volume keys at the same time.
2. The device starts in Settings menu mode.
3. Perform a full system reset.
4. Select “Reset Android”, the device will reboot.
5. You have a working tablet in your hands.

What to expect when visiting a service center

If you could not determine what the problem is on your own, then you should visit a service center. There they will provide you with qualified assistance, carefully study the problem and fix everything.

How does the repair procedure take place at the service center:

• They will ask questions to understand whether the gadget has been dropped or gotten wet.
• They will carry out an initial diagnosis in 30-60 minutes and after disassembling they will tell you what the cause of the breakdown is.
• If the breakdown is not too complicated, everything will be fixed within a few hours.
• Be sure to ask the technician to install new original parts instead of faulty ones. Experience shows that choosing cheap analogues can greatly affect the operation of the device in the future.
• Check to see if the service provides a guarantee for its work. If not, then it is better to go elsewhere.