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Samsung Galaxy S7 edge
I note all posts seem to be Apple related. Is there any help on this forum for Samsung phone problems? Need help with a phone that suddenly went black screen. Not dropped or seen water. Believe the phone was still working blue led still flashing as usual until the battery went flat. Will not charge. Have taken 5 or 6 caps off the board which showed short ( i assume they were all on the same line). all the caps show nf values when off the board. The board shows no power consumption until power button is pressed where the current draw is 280m/a constant. does not continue to boot or charge. Suspect short under chip.I dont have schematics etc. I have worked on electronic devices in the past but not phones. Have a hot air station and regulated 12v 5amp psu. very amateurish I'm afraid. need some help as there might be some info on the board that I may want in the future it would be good to get it working. The rest of the phone is OK as i have bought a second hand motherboard off e bay and all is functioning ok.
Was the phone still working aside from the black screen? If so, then you can look at the max77838 display chip. With that said, we've had a 100% return rate on this repair, so we don't do it anymore. You can replace it to get your data off, but that's about it.
Most people don't fix Samsung because there are no schematic readily available.
Really appreciate your time Mike My chip on the S7 edge 935F is S2DOS03 not a Max i believe. Yes the phone appeared to be working as the blue LED on the top left hand corner was flashing once a second as normal but no screen and it would not charge so went completely dead when the battery ran out. Just looked at ZXW that you sell on a month licence their website lists S7edge 935 schematic dont know if this is correct. Keep well with the deaded virus. Kind Regards