How to solve the problem of being unable to perform OTA upgrade to iOS 17.2.1?

OTA upgrade installation is a convenient way that allows iPhone users to upgrade the system directly on their phones through WiFi. Although this method does not require connecting to a computer, unstable WiFi signals may result in the inability to check or install updates, which requires higher network requirements.

# Why can’t I upgrade via OTA?

What should I do if I cannot OTA upgrade to iOS17.2.1 normally?

How to OTA update iOS 17.2 beta version to iOS 17.2.1 official version?

iOS upgrade push is usually based on the version number, and the pushed version is higher than the current system version Only the high ones will be pushed. For example, the version number of iOS 17.2 RC version is (21C62), and the version number of the official version of iOS 17.2 is also (21C62). In theory, this is the same firmware. If you have upgraded to iOS 17.2 RC version, the same version number cannot be upgraded at the same level, so Unable to receive the push for the official version of iOS 17.2. At this time, we need to enter [Settings]-[General]-[Software Update]-[Turn off Beta updates], so that the official version of iOS 17.2.1 can be pushed to the official version through OTA.

Under normal circumstances, OTA upgrade to the official version can be performed as follows:

1: The official version has been installed Version of the device, you can directly open [Settings] - [General] - [Software Update] in the device to upgrade OTA;

2: Devices with Beta version installed You need to first go to [Settings] - [General] - [Device Management] to delete the installed beta version files, restart the phone and then check for updates.

It should be noted that after the description file is deleted, the device will only receive official version updates and will no longer be prompted for beta version updates.

In addition, the iPhone cannot be upgraded to iOS17.2.1 OTA due to insufficient space and unstable WiFi connection.

When updating iOS 17.2.1 via OTA, make sure the iPhone is connected to a reliable WiFi and do not download other content at the same time. If there is insufficient space for downloading and installing updates, it is recommended to transfer or Delete apps, photos, music, etc. to make enough space. When there is enough space, you can continue to update the system on the iPhone.

The update time will vary according to the size of the installation package. If the update never completes and the progress bar has not moved for a long time, please try restarting the device.

If you cannot upgrade to iOS17.2.1 through OTA on the iPhone, it is recommended Connect the iPhone to the computer and use the "one-click flash" function to upgrade the system.

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