Hi,
So I have a Samsung galaxy s5 got it off Amazon about 3 years ago. I fell asleep playing a game woke up hour or so later to a phone call and the screen was black. I haven’t used it in over 2 1/2 years. I just found this site and tried the reset cache wipe on it and it turned on and I could see the lock screen but could not put my code in. I charged it to 85% then removed the battery and tried to restart it and bsod again. I tried to reset again with no luck? I’m confused as to why it turned and now nothing?
Harold
Try removing the battery again, and while the battery is out, press and hold the Power key for a minute.
After that, put the battery back in and turn it on. If it won’t turn on after that, try to connect it to a computer and then press and hold the power key for 3 seconds. See if it gets detected because if it does, the problem might be with the display.