Battery charge level jumps from 10-15 to 0 literally in one second!
Hi everyone! I have used my phone since 2014 (maybe, since 2013). I never ever had any problems with it. And in the case I had, I just updated the firmware. But now I face some problems. It overheating all the time. For instance, I write a text with a simple app (I write essays for money), and in a few minutes, it gets overheated. All other applications are closed (and almost nothing works in a background mod). Or, I scroll messages in Telegram (which is also a simple app), it starts to lag and overheated also. But the main problem is when I have 10-15% of the battery charge level. It jumps to 0 literally in a second (it's so unexpected) and turns off. Do you have any suggestions on how to fix it? I have limited free memory space, may it cause such kind of problems? As I know, overheating is because of processor or when you're out of RAM, not ROM.
Is this a good question?