after fixing screen the iPhone block when battery is empty or full

so you can see from the title that after a screenfix of the iPhone, it worked well but two days later when the battery was empty the iPhone didn't respond anymore....

we found a way to restart it in dfu mode and we reinstalled some software but now he works perfectly when he's in mid range of battery but not when he is full of battery or is empty ( recharging of course)! then he just blocks!

i think that's very strange and i hope you guys have any idea what it can be

thx