iOS 12.1.2

Apple officially stops signing iOS 12.1.1 and 12.1.2, thwarting firmware downgrades via iTunes

Anthony Bouchard ∙ February 6, 2019

Following an exceptionally-long and unheard-of grace period, Apple has officially stopped signing both iOS 12.1.1 and 12.1.2 Tuesday evening, a move that packs some serious implications for the jailbreak community.

Update: iOS 12.1.1 beta 3 is apparently still being signed at the time of this writing. Downgrade immediately while you have the chance!

Apple first launched these firmware versions on December 5th and December 17th respectively, each to address small bug fixes and performance improvements in the operating system. But as we know, no software is entirely bug-proof.

Security researcher Brandon Azad publishes voucher_swap exploit for pre-iOS 12.1.2 devices

Anthony Bouchard ∙ Updated March 19, 2019

Not long after tihmstar published his iOS 11.4-11.4.1-centric tfp0 exploit for headphone jack-enabled handsets, security researcher Brandon Azad followed up by releasing an exploit of his own intended for devices running iOS 12.1.2 and earlier.

Azad shared the news via Twitter Tuesday afternoon, including a link to documentation encompassing the exploit:

iPad owners currently cannot restore from iCloud backups created on iOS 12.1.2

Christian Zibreg ∙ January 4, 2019

Are you finding it impossible to restore your iPad from an iCloud backup?

Some users report LTE calling and SMS issues with iOS 12.1.2 (bonus: temporary fix)

Christian Zibreg ∙ December 24, 2018

An unknown percentage of people who have updated their iPhone to Apple's most recent iOS 12.1.2 software update are apparently plagued with curious issues preventing them from making voice calls over their carrier's LTE network, as well as sending and receiving texts.

Apple releases an updated version of iOS 12.1.2 for iPhone with build number 16C104

Christian Zibreg ∙ December 20, 2018

Apple on Thursday released an updated version of the iOS 12.1.2 software with a new build number 16C104. The iPhone-only software update has arrived just three days following the initial release of iOS 12.1.2 with its original build number 16C101.

Apple confirms iOS 12.1.2 circumvents Qualcomm patents in China

Christian Zibreg ∙ December 19, 2018

Apple's acknowledged that the iPhone-exclusive iOS 12.1.2 software update has indeed circumvented a pair of Qualcomm patents—in spite of Qualcomm's claims to the contrary.

iOS 12.1.2 launches with fixes for the eSIM activation and cellular connectivity issues

Christian Zibreg ∙ December 17, 2018

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.

Public betas of iOS 12.1.2, tvOS 12.1.2 and macOS 10.14.3 now available

Cody Lee ∙ December 11, 2018

Apple on Tuesday issued new betas for those in the public testing program. The same first betas of iOS 12.1.2, tvOS 12.1.2 and macOS 10.14.3 that were released to developers yesterday, can now be installed by public testers using their respective OTA mechanisms.

Apple seeds first betas of iOS 12.1.2, watchOS 5.1.3, tvOS 12.1.2 and macOS 10.14.3

Cody Lee ∙ December 10, 2018

Apple on Monday issued new betas for iOS 12.1.2, watchOS 5.1.3, tvOS 12.1.2 and macOS 10.14.3 to developers. Those with Apple developer accounts can install the new betas either directly from the Dev Center or via their respective over-the-air mechanisms once the proper configuration profile has been installed.