The US version of 4s upgrades iOS8.4. 1, and you can make phone calls but not send text messages online.

Your phone should be locked. 8.4. 1 I can't escape from prison, so I shouldn't be able to crack it, because I found a great god to get it for me before, and I escaped from prison first, and then I modified a file in my mobile phone, and it was ok. Now 8.4 has not turned off verification, please downgrade quickly. I don't know how to crack it. Please contact the great god. They have a job reform called iosonline. I hope it helps you. I suggest adopting.