I was fixed a s7 edge battery and micro usb connec...

I was fixed a s7 edge battery and micro usb connector and after a year the mobile has stopped, it has died, purple light intevitenete in led notifier and now it does not respond to anything. I do not know but it gives me that they heat it up too much and they screw up the tracks it is not normal that after spending a paste to spend 12 months pete the mobile. If I came to know I did not spend that money, that they pay me back.