iphone 7 plus shut down
iphone 7 plus that shut down when updating and I will not turn it back on. Tried everything and followed all instructions . Want to trade the phone for a new 12 model but I cant access the serial number
iPhone 7 Plus
Hello,
Start here:
iOS update and restore errors - Apple Support
Also see:
If your iPhone, iPad, or iPod touch won‘t turn on or is frozen
Good luck.