unable to activate
Dear Apple Support team, i have problem: i have an iPhone 7, it's unlocked. but when i use my Chinese SIM card after that it's saying like this. "Unable to Activate", i tried again and again but it won't work. (this SIM card is ok, it can work at iPhone 6), i came to the Apple store(Portland) to asked this problem and he told me "just wait a while". two months ago, it won't work. please help me.