My sony xperia tx lt29i wouldnt charge yesterday. So i took the battery out for a few minutes and then i placed it back in and it started to charge until it was full. The next day the battery died (cause i was playing on it) and i put it on again, but wouldnt charge. Now it wont turn on, ive tried taking the battery out for a whole day and came back from school and wouldnt charge. Some people say that the problem is the motherboard?is it, or is it something else?
As you said that you are playing with the battery,
If the battery is damaged, it may produce power with different voltage. As you tried putting and turning the phone on using that battery, the over voltage may damaged your phone
The battery is dead. You can put a new battery and start using it.