I have taken an old Casio charger 5vdc 2 amp and cut the wires and soldered it to a micro USB plug I used the white/red and a purple test it on an old device to make sure you have it right. I then started the high current charge and at first it looked good . After an hour it said 35% so I turned it on and it fell to 12% in a minute. I plugged it back in and checked for battery utilites, there was one battery pro that said it had 5 inactive cells and it then said it could fix them . Right now I have been using the tablet but software should not fix a battery and I think I will try to find a replacement on eBay. I do have an old old Pandigital and that battery still works good after 8 years.
Well thanks again, two months after replacing the screen the kid broke the new one, so it took two weeks for the new one to show up and the cost went up by 5 cents. One thing in step 9 I had forgot (!@#$ I'm almost 70 I forget lots of stuff) that the lock flips up from the back to the front. And then getting the tab back into position was a real pain. I can only see out of 1 eye so I need to hold the magnifying glass, hold the lock up and fit the tab in. Easy for you young whipper snappers, but for geezers it's a handful
my daughter smashed her screen and was ready to have us buy a new phone, I said lets order a screen and see if we can fix it. Well it took 2 weeks for the ebay screen to arrive, and then I had to putup or shutup. It did take about a 1/2 hour and then she put the sim chip in backwards which scared the crap out of me, but for $7.50 her phone is working. Oh I made a mistake and got a black faceplate but she says it looks better in black. So Thanks, and just mention that that screen gets hot with a blow dryer, but a thumb nail works id off just fine