Phone has no display,
Hi, I am a mobile phone technician, last time I repaired the samsung s6 edgeplus charging port. After repairing I checked everything was working fine. after that I closed the phone. After I closed the phone, phone went black, but the two button at next to home buttons light up. right now phone screen is black and I can't see anything.
I checked everything and there was no sign of damage. I have given it to other technician and he checked it and he couldn't fix it. now my only hope is here. I need to know why picture not coming out, why the screen doesn't give me display.
I changed the screen. I changed the battery and everything. all components works fine, but something is wrong with motherbaord and its not showing display.
can someone please let me know what could be the problem.