How to update modem (cellular) firmware?

So the youtube app keeps popping up "error playbakx, press to retry" everytime i try to open and watch a video on the youtube app.

note my phone is a iPhone 5 with the latest software 8.0 and it is factory unlocked.

And i googled how to solve this problem and the answer was to update the modem firmware. So please help

iPhone 5, iOS 8

Posted on Sep 25, 2014 5:11 PM

Reply
6 replies

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

How to update modem (cellular) firmware?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.