If you are using your original charger and you noted that your battery is not charging, just to be sure you can take it to any qualified service center where someone with an electronic tester can verify the output of your charger/adapter. If it is OK, you may have a problem in the electricinput system of your tablet or the battery .
Video shows how to remove tha battery
http://www.youtube.com/watch?v=9lDOWB6els0#t=111
Now, to be honest, I wouldn't date to disassemble my Galaxy Tablet,
If you do, ok, if not you should need a repair service.
Have you tried a different charging cable?
Did you allow the battery to run down until it was completely drained?
- If so then try the following;
Watch this video (link below). You should only remove the back cover, disconnect and reconnect battery cable. Disregard the rest of the video as I could not find one doing ONLY what you would need to do. Follow the instructions to remove the back of the tablet then disconnect the battery cable(careful not to damage the circuit board), reconnect the battery cable, and replace the back cover. Connect the charger, within a minute the screen on the tablet will pulse/flicker which is good news, allow it to charge a while, turn on the device, turn off the wireless wifi, click the power button to turn the screen dark again, and allow to charge for another 6 hours or till fully charged (when not connected to wifi the background processes will affect the charge time, on a weak charger it may not even charge like from an usb port on a computer).
Again, you should only be concerned with the video up to about the 1 minute and 15 second mark. You only need to disconnect the cable then reattach it. ONLY DO SO if you are comfortable doing so. If you have never worked on electronics before or are uncomfortable find someone to do it for you.
Galaxy Tab 3 Battery Replacement and Screen Repair Disassemble and fix
SOURCE: How do I know when my Samsung Galaxy Tablet is
The Tab takes quite a long time to charge (not sure why). Note that the Tab cannot charge from a computer USB port (only from the included AC adapter. When the Tab has finished charging, it should put out a notification (open the notification drawer by pulling down on the status bar) saying the battery is fully charged and to unplug the charger. Other than that, you would have to install a third-party app like Smart Battery Monitor (see here) and watch that to see when it is full.
Hope this helps,
Alistair
SOURCE: SAMSUNG GALAXY TABLET NOT CHARGING OR TURNING ON
Hi buckpot2001,
To correct this issue, please follow the steps below.
1. Press and hold down the power button whilst at the same time touching the screen (you may have to wait up to 30 seconds as it clears the system).
2. You will then notice the battery indicator pops up.
3. The Tablet will then reboot. Everything goes back to normal.
4. If that fails to work, connect the power cable and repeat the above steps.
Hope it helps.
Thank you for using FixYa.
SOURCE: my galaxy tablet GT-P7510 wont turn on its fully charged
Hold down power up button until it starts. It can take up to 30 seconds before it restarts.
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