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If you use a mobile authenticator on your iPhone to log into Battle.net products, beware the upcoming iOS update. It just might reset your authenticator and cause you some irritating headaches the next time you try to log into WoW. Over on the official forums, Support Forum Agent Harlsoco outlines a few ways you can prevent an authentication mess following the update. The full blue post is after the break.


Harlsoco
  • Sign up for the free SMS Protect service. In the event of a lost, broken, or accidentally reset authenticator, users with SMS Protect can remove the old authenticator from their account with a texted security code. For more information, visit the SMS Protect FAQ.
  • Write down your authenticator's Serial Number and Restore Code so that you may restore your authenticator to your phone after the OS update is finished. You may also wish to take a screenshot of this information.
  • Temporarily remove the authenticator before updating. Reattach the authenticator again once your iOS update is complete. You can remove the authenticator through our Web Chat option if necessary by contacting the Blizzard Support page and selecting Battle.net > I have an issue managing my account > I want to remove my authenticator > Live chat. If Live Chat shows offline, refresh the web page and try again.
  • Update over Wi-Fi. iPhones that are updated over Wi-Fi rather than through a computer are less prone to accidental resets.

This article was originally published on WoW Insider.