activation impossible after reset
my problem with my iphone 5S persists for 2 months. After a simple restoration to the State Factory, I find myself facing a blocked iphone impossible to activate either manually or with iTunes (a message related to a SIM card that appears).
I tried the Apple Support Tips on their site, and even put it in DFU mode and activate it from iTunes, but in vain :(
I have consulted two repairers who tell me that there is a problem motherboard and the other assumes that it is a Software problem !
ANY SOLUTION PLS ??