Why can't I turn my tablet on I know it overheated but nothing works
I put it in my backpack for 5 minutes then i went to turn it on and it was hot and wouldn't turn on
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Please be advised that myself, nor this web page can be held responsible for damage to any device, should an attempt at repairing one's own device fail. Always make sure to consider hiring a professional repair shop to fix your device for you.
Diagnostic steps for not charging:
1) Check for a blocked port (Lint build up can keep a cord from fitting in properly. if the frame of the plug is not flush with the device, using small tweezers, and being careful not to damage pins, pry out any dust or lint.
1) Try a Known Functional Cord. (Works on another device)
2) Excite the battery: Hit the + and - of the battery with an external power supply for approximately 10 minutes. (Be sure to verify you are using the amperage and voltage that the battery can handle. (Located on the battery with the specs.)
If the device boots, then the battery is functional, and you can continue forward with your diagnostics.
3) Scan board, and Flex circuits for physical damage. Looking for signs of blown or chipped components. Scorch marks, or corners of components broken off. Replace as needed, and test again. A 10X+ microscope assists very well in this stage
4) at this point, plug in the device again, and check if it charges. if it isn't, then go forward with replacing the charge port itself.
5) if replacing the charge port does not fix the issue, then you are experiencing an IC or board failure, in which case, it will just be better to replace the device.
I hope this guide has helped you in your diagnosis.
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2) Excite the battery: Hit the + and - of the battery with an external power supply for approximately 10 minutes. (Be sure to verify you are using the amperage and voltage that the battery can handle. (Located on the battery with the specs.) DO NOT TRY THIS this can result in an explosion and a fire.
but i've done this approximately 5-10 times a day for the last 4 years i have worked in my store, and my franchise of 300 stores trained me to do this. there has been no history of fire in these cases.
now dont get me wrong, I agree fire can occur if there is a physical puncture to the battery, or a short inside it causing it to overheat, though that is the case of just turning a lithium ion battery on. As long as the battery is physically okay, (not broken) and the measurements are proper, as i stated, there is very little chance of fire. and if they are worried about fires or damage, i have explained to hire a professional. should they decide not to, it is their choice.
That is true, but you have the properly regulated lab bench psu which you can regulate the current and voltage. Few people have those (I for one don't, although I really need one and will be getting one soon) and might try to put some 5 or 12v psu on the battery and create a fire.
oh! that is why i specifically stated to use the voltage and amperage that the battery can handle. it is very important to follow the instructions i give, and not being able to follow them is exactly why i set a disclaimer at the top that damage is not my responsibility. i understand your concern, though.
How long has it been since? Have you tried plugging it in?
Cameron さんによる