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It seems there is no possible way to turn on the device.
At first, try charging the tablet before taking apart your device. The main cause for a device not turning on is because there is something wrong with the battery. In this case, you will need to replace the battery.
Try charging the device first to see if it is a problem with the battery itself, as it is difficult to tell if the LCD is the problem or if there is another reason why you cannot see anything on the screen. If the LCD is defective, the backlight will not come on, even though the device is on.
At this point, you will need to replace the LCD screen.
There is no sound coming from built in speakers or the audio is low quality and distorted.
Try listening to something that is known for sure to have high quality sound on other devices to test if this is a problem with a specific audio stream.
If the problem is not with the audio stream and the device still fails to play any audio, the internal speakers may be faulty. Try replacing then using this guide.
The device stops functioning and is unresponsive to touch or any other forms of input.
If you believe your device has encountered an error, try restarting the device before trying anything else.
You may be running too may resource sucking applications concurrently, try closing any apps that you are not immediately using. If this does not work, try restarting the device.
If the device is consistently freezing during start up at the boot logo, some crucial start up files may have been accidentally deleted or moved to a different location. To fix this you have to perform a hard reset by following these instructions(NOTE: performing a hard reset will erase all data on the device):
Option #1: Find a sharp object such as a pencil and press into the reset pinhole found on the back corner of the device.
Option #2: Copy and Paste the link below into your web browser to learn how to do a hard reset
It is hot to the touch, or it turns off unexpectedly.
If you tend to play video games a lot or browse the Internet too much, the device will overheat due to the increased need for power to keep up with the work.
Make sure not to use the device too much while it is charging, as it does need some time to relax and cool down.
Try shutting it off if it is not already off. Give the machine a break, as it needs time to cool down.
Sometimes, if there are too many applications opened at a time on the device, it will begin to overheat, as it needs more power to keep all the applications running.
In order to fix this, you could simply close out or shut down applications that are not in use.
This is simply caused by having particles enter through small holes and openings such as the speaker.
This can be easily be fixed by detaching the back casing in order to remove any dirt or dust that has been collected on the inside.
Sometimes, the battery has been outdated, as companies do not design them to last too long.
In this case, you would need to replace the battery.
The screen is broken if the screen does not function when it is touched or it is shattered within the glass casing or there are discolored spots on the screen.
A discolored spot on the device screen usually indicates that there are dead pixels present. One thing you can do is apply physical pressure to the pixel in question. Take small blunt object such as a pencil eraser (anything as long as it doesn’t risk damaging the screen), turn off the screen, and then press down on the part of screen where the troubled pixel was last seen. Do this for five to ten seconds, and then reactivate the screen.
If the pixel is still giving problems, download and run a free Android app called Dead Pixel Detect and Fix.
The touchscreen can become unresponsive if the device is physically damaged. Your device might also be using an excessive amount of memory, in which case you will need to clean it out. In the worst case, you may need to open up your tablet and realign the screen’s digitizer.
