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Apple releases iOS/iPadOS 15.1 developer preview beta 4: fix bugs and improve stability

Apple today pushed the iOS/iPadOS 15.1 developer preview Beta 4 update to iPhone and iPad users. The version number is 19B5068a. This update is one week after the last release.

Apple releases iOS/iPadOS 15.1 developer preview beta 4: fix bugs and improve stability

Apple officials have not yet explained the specific content of this update, but only fixes bugs and improves stability.

Previously, in Beta 2 of the iOS 15.1 developer preview, Apple fixed the Apple Watch unlock function. Apple Watch can be used to unlock iPhone 13 models while wearing a mask.

In addition, SharePlay returned in iOS 15.1, and Apple again tested the features that were deleted before the release of iOS 15. SharePlay allows users to call friends and family members, watch movies, watch TV, or listen to music together and interact.

Apple has also added features such as shared playlists and TV program synchronization to ensure that users can see the same content at the same time. SharePlay supports the built-in screen sharing function, and Apple is still fixing related bugs.

Used in conjunction with the HomePod 15.1 beta (invited users only), iOS 15.1 brings lossless audio and Dolby Atmos support to HomePod and HomePod mini.

iOS/iPadOS 15.1 beta 4 supports the following devices:

iPhone: iPhone 13 mini, iPhone 13, iPhone 13 Pro/Pro Max, iPhone 12 mini, iPhone 12, iPhone 12 Pro/Pro Max, iPhone 11, iPhone 11 Pro/Pro Max, iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8/8 Plus, iPhone 7/7 Plus, iPhone 6s/6s Plus, iPhone SE/SE 2;

Apple releases iOS/iPadOS 15.1 developer preview beta 4: fix bugs and improve stability

iPad: iPad Pro 1/2/3/4/5 (12.9), iPad Pro 1/2/3 (11), iPad Pro (10.5), iPad Pro (9.7), iPad Air 2/3/4, iPad 5 /6/7/8/9, iPad mini 4/5/6;

Apple releases iOS/iPadOS 15.1 developer preview beta 4: fix bugs and improve stability

iPod Touch: iPod Touch 7.

iOS/iPadOS 15.1 beta 4 upgrade method:

1. In order to prevent accidents, before upgrading, please back up all the data in the device in advance (Aisi Assistant full backup).

2. After the upgrade, you cannot downgrade back to the iOS version that Apple has officially closed for verification.

3. As the beta version may have some instability or unknown problems, it is not recommended to use the main equipment to upgrade.

It can be upgraded as follows:

Method 1: You can install the iOS 15 test version description file on the device (follow the WeChat official account of Aisi Assistant, reply to the “description file” to get it, open and download the description file through the Safari browser, and then go to the settings-general-description file Install the description file), restart the phone after installation, and then go to Settings-General-Check for updates. You can also scan the QR code below, then open it in the Safari browser and follow the prompts to install the description file.

Apple releases iOS/iPadOS 15.1 developer preview beta 4: fix bugs and improve stability

Method 2: It can be upgraded through the one-key flashing function of Aisi Assistant: Open the PC end of Aisi Assistant (need to be updated to the latest version), and connect the iOS device to the computer. On the “One-click refresh” page of Aisi Assistant, select iOS 15.1 beta 4, check the “Retain user information and refresh” option, click “Refresh now” and wait patiently for the completion of the refresh.

Apple releases iOS/iPadOS 15.1 developer preview beta 4: fix bugs and improve stability

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