Recharge problems with umidigi s2

PoulpyLeTerribl

Hello, I have some issues with battery charge: Today, I tryed to recharge my phone but when I lock the screen, the phone isn't recharging. So, I thinked the fast-charge app was in cause, and I delete it. Now, I think it's a cable or connector problem and the fast-charge app isn't a system app, and, of course, I don't remember his name. So, anyone can help me to reinstate it without reset to factory, because I have like 9hours of charge behind me...