iOS 15.1.1 build 19B81

19B81
Build of iOS 15
19A5281h screenshot.png
Architecture
Compiled
Works on

iOS 15.1.1 build 19B81 is the official RTM build of iOS 15.1.1, which was released to the public on 17 November 2021.[1] It is only available for the iPhone 12 and iPhone 13 series.

This build improves call drop performance on the aforementioned models.

References[edit | edit source]

  1. ↑ Clover, Juli. Apple Releases iOS 15.1.1 With Call Improvements for iPhone 12 and 13 Models, MacRumors. 17 November 2021.
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