Chosen Solution
Installed new screen, instead of broken on iphone 7. It was working for two days, suddenly it started rebooting and now it is not working at all. Itunes dont see it, pushin vibration button there is no vibration. What it could be?
You might want to open the phone again to double-check your connectors (battery, LCD, lightning dock connector, front camera flex). How was this phone damaged originally? Drop damage? Liquid damage? Run over with your car? Depending on what happened, you might have more damage to repair than just your damaged screen. I’d start with simply checking your connections. Open the phone and disconnect the battery first. Carefully lift the connectors and reseat them to ensure they all have a solid connection to the logic board. Without additional information or some diagnostic tools on your part, it’s difficult to say what the problem could be. Since you have already opened the phone to perform the screen replacement, the likely place to start troubleshooting is to go back and check your work.
