How to change SIM cards?
hi good evening?help me for any simcard countries
[Edited by Moderator]
iPhone 6s Plus
Question marked as
Your phone is locked to AT&T in the US. You cannot use any SIM card other than an AT&T SIM card in that phone, unless you can get AT&T to unlock the phone. Here is how to do that→https://www.att.com/deviceunlock/. But note that you must have been an AT&T customer for 90 days before they will unlock it. So it’s likely that you can never use that phone.