Chosen Solution

Hello. Thank you all in advance for trying to help. Let’s get to the point. iPhone 5s won’t turn on. Two nights ago I left it to update to the latest system while on a charger. The next morning, the phone died. I tried a hard reset as described and nothing. I tried to search for a possible backlight problem with the flashlight but I couldn’t see the logo. While connected to my computer, iPhone appeared in iTunes after a hard reset asking for a recovery. I did this 2,3 times, then iTunes could recognize it immediately and show all the information(battery info as well) but the phone won’t turn on. I never tried to repaired a phone so I wanted to check with you all. I bought this phone from a guy who replaced the broken screen 3 years ago.

Replace with a new screen and test. If it doesn’t work, this might be a logic board issue.