Apple today released iOS 12.1.2, a minor software update for iPhone and cellular iPads that contains bug fixes for the eSIM feature, arriving two weeks after the release of iOS 12.1.1.

NOTE: The update is rolling gradually so check back later if you don’t see it yet.

Seeded for developer testing a week ago, the iOS 12.1.2 update with build number 16C101 is now commercially available as an over-the-air update in Settings → General → Software Update.

The full installer can be grabbed from iDownloadBlog’s Download page.

iOS 12.1.2 release notes

Apple’s release notes accompanying the download detail the changes:

iOS 12.1.2 includes bug fixes for your iPhone. This update:

  • Fixes bugs with eSIM activation for iPhone XR, iPhone XS and iPhone XS Max
  • Addresses an issue that could affect cellular connectivity in Turkey for iPhone XR, iPhone XS and iPhone XS Max

For information on the security content of this update, read Apple’s support document.

It was unclear from Apple’s documentation at press time whether the iOS 12.1.2 update includes any software changes to circumvent Qualcomm patents in China as rumored.

The eSIM feature requires iPhones with an electronic SIM card that permits the works alongside the regular SIM card so customers can use two phone numbers simultaneously. eSIM is also used on cellular iPads.

eSIM functionality requires the iOS 12.1 software update. The major US carriers like AT&T, Verizon and T-Mobile support eSIM. Apple’s support document lists countries and wireless carriers around the world that support the standard.

If you have been plagued with these issues, let us know if iOS 12.1.2 has managed to fix them by leaving your comment in the comments section down below.