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From online
If your iPhone has been bricked during the update to iOS 17.3 beta 2:
- Download the iOS 17.3 beta 1 IPSW on your Mac (https://updates.cdn-apple.com/2023W...DC79504/iPhone16,2_17.3_21D5026f_Restore.ipsw)
- Plug iPhone into Mac
- Press volume up, then volume down, then press and hold the side button until the recovery mode screen shows up
- Use Finder to restore the IPSW (in Finder, hold down Option when clicking the restore button to select the IPSW)
- Your iPhone should be successfully restored without any data loss \

This is what I did but optioned clicked update instead of restore. Did the update then the phone attempted data recovery. Booted up with all my data pre boot loop.

Didn't fancy an iCloud backup restore...
 
Installed without issue on my 13 mini.
Though I see Apple just pulled it…
 
My 15MP had the problem, I was able to "update" to B1 by putting my iPhone in DFU mode (volume up, volume down and the long power button), and then old down "option" to restore this ipsw


Phone took 10 minutes to restore, but I have all my old data, and didn't loose anything other than a few minutes of panic :)
Trying over iTunes on Windows 11 I get the message "firmware not compatible" with the file you provided. Am I doing something wrong? :-(

Edit: Oh, I got it. Had to download another ISPW for the iPhone 15 Pro Max.
 
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Pour one out for the brave ones willing to test betas who ran into this issue. Yikes.

No betas for me, peeps.
 
What do you think a dev beta is for? The internal testing doesn't always catch some things. ;)
This, right here, sums up why Apple needs to put more money into & enhance their internal software testing instead of making customers who just forked over hundreds of dollars, just to do Apple’s software testing for free. Not talking beta software here, but public releases that take 6-9 months to work the way it should have on day 1.
 
This, right here, sums up why Apple needs to put more money into & enhance their internal software testing instead of making customers who just forked over hundreds of dollars, just to do Apple’s software testing for free. Not talking beta software here, but public releases that take 6-9 months to work the way it should have on day 1.
Internal testing is never the equivalent of expanded hardware/software diversity that dev release afford. This might simply be an authoring issue of the installer package.
 


The second beta of iOS 17.3 that Apple released today is causing major issues for some iPhone owners, so users that have not yet installed the new software may want to hold off.

bricked-iphone-vittici.jpg


Image from MacStories' Federico Vittici

As noted by reports on the MacRumors forums, Twitter, and Mastodon, some iPhone owners who have attempted to update to iOS 17.3 beta 2 have found their devices stuck in a boot loop with a blank black screen that has a frozen spinning wheel.

Restoring to the prior version of iOS 17.3 or the iOS 17.2.1 release software appears to address the problem, but users who do not have a backup may have issues with the restore process.

Not all iPhone users appear to be affected, as some iPhones updated to iOS 17.3 beta 2 have come through fine.

Apple has not yet commented on the bug, but it is likely the second iOS 17.3 beta will be pulled in the near future until the issue can be addressed.

Article Link: Warning: iOS 17.3 Beta 2 Bricking Some iPhones
It’s not bricking. Bricking typically means inoperable. Apple, via the Feedback app, has provided (along with many forum users) clear paths to recovery.
 
Beta testers are serious about software validation and are technically savvy. They can avoid any day-to-day impact by just using their primary device instead.
 
Fortunately, I have not had any issues with boot loops in 17.3.
I did have hundreds of boot loop issues with 16.1.1 and 16.6.
 
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