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The second iteration of Samsung Galaxy Tab tablet computers with a 7.0-inch screen. Model numbers: GT-P3105, GT-P3100, and GT-P3105.

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new battery but phone still won't charge

before i replaced my battery, my phone was draining power and would not charge. i replaced my battery and battery problem was solved but my phone still won't charge at all. the charging icon won't appear even the red x. i tried everything but its all in vain. please help.

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Are you sure you are using the correct charger for the battery you are charging. It sounds like, at least with your last battery issue that you may not be using the correct charger for that specific battery, which after awhile will lead to power draining quickly and not holding a charge because the battery is being supplied with to high of voltage or possible to low of voltage. This in time can cause a battery to fail. Does the battery get hot when trying to charge? That may be a good indication that you are using the wrong charger. You charger should be 5.3v 2amp. Also li-ion batteries do not like being overcharged(like when people leave them plugged in while sleeping). I know sometimes that can't be avoided, but try not to do it to often. For li-ion batteries to last longest it is best to only let them get to about 80-90% charge and go as low as 30-25% before connecting charger. This will increase its lifetime.

If you are using a charger that is specified for use with that battery than the charger is probably not the issue. I have heard that Samsung has sent out wrong chargers in the past so you may want to check.

It could also be related to the usb charging port in the device which may have issues, or it may be a power IC or charging IC on the logic board has become faulty. Which is what a repair shop would probably say to get you to buy a new logic board, even if its just a software problem that falsely monitors the battery charge levels.

It may also just be a software glitch. Have you tried powering on while holding any buttons? I have seen people in this situation hold down power for 1 minute then while still holding power plug the tab in to the charger, then continue to hold power button for 30 seconds and the phone would power up. Have also heard while plugged in to charger hold the power button and home button at the same time until it turns on.

Hopefully this information is helpful. Best of luck.

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