Hi Bro ,
My old IPhone 7 was not turning on after several months i tried to turn on but it was not turning on and apple logo was flashing on & off also i tried to restore it was not working , I have tried several times in both Windows ( Itunes newly installed) & Mac also but it was not working , what can I do bro ?
hi bro, either battery or board related issue possible. need to be checked with third party service center once to find the exact issue and solution.
iOS Restore wont help when there is hardware level issue. kindly check.