The new iOS 15.1.1, is an updated version of the iOS 15.1. The iOS 15.1.1 fixes the call drop performance issue on the iPhone 12 and iPhone 13 and the usual bug fixes.
The users of iPhone 12 and 13 have recently experienced consistent dropped calls on their devices which prevented them from receiving incoming calls.
Apple users subscribed to LG Uplus Corp, a major South Korean telecom operator also reported similar experiences, on an online community in South Korea, reports Yonhap news agency.
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The company has received complaints among its customers and is working to identify the exact cause, said an official at LG Uplus.
The latest iOS can be updated from the Settings app on the iPhone devices.
Apple also introduced a new 15.1.1 software update designed for the HomePod recently.
The update addresses a problem that could cause podcasts to fail to play on the HomePod and HomePod mini, according to Apple's release notes.
This smart speakers update new software automatically, but can also be done manually.
To update HomePod software manually, open the Home app then tap on the Home icon in the upper-left corner of the screen. Choose Home Settings from the resulting pop-up window. Then choose Software Update.
Apple's support website has more details about the new update.