Apple seems to be really serious about their beta program, posting today the second iteration of a bug fix update beta, iOS 9.2.1.
iOS 9.2.1 beta 2 was the only beta software to ship today from Apple; however, Mac OS X 10.11.3 El Capitan beta shipped on the same day as iOS 9.2.1 beta, so expect Mac OS X 10.11.3 El Capitan beta 2 soon as well.
Version numbers are major.minor.bug fixes, so naturally, there are no front facing features in iOS 9.2.1. If you wish to install it, here’s how.
Note that iOS 9.2.1 will run on an iPhone 4S or better, iPad 2 or better, and fifth generation iPod Touch or better. To make things easier, I’m just going to say iPhone in the tutorial.
- Begin downloading the file that corresponds to your device
- Plug your iPhone into a PC running iTunes
- Click on the serial number in iTunes. It will turn into the device UDID.
- Go to the Apple developer center and go to Member Center -> Certificates, Identifiers, and Profiles -> Devices.
- Add your UDID
- On your iPhone, go to Settings -> iCloud -> Backup -> Back Up Now.
- In iTunes, click Back Up Now.
- In iTunes, while holding Option on a Mac or Shift on Windows, click check for updates.
- Navigate to the file you downloaded and open it.
Note that this procedure will update your phone to iOS 9.2.1 beta 2 without losing your data and while backing up your data in case something goes wrong. If you wish to restore your phone to factory settings in the process, replace “Check for Updates” with “Restore iPhone”.