✗ This firmware is not signed. This means you cannot restore to it in iTunes.
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Download (7.43 GB)✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.
iPhone11,8_17.2.1_21C66_Restore.ipsw
file that you downloaded.iPhone11,8_17.2.1_21C66_Restore.ipsw
file that you downloaded.cd ~/Downloads
idevicerestore -e iPhone11,8_17.2.1_21C66_Restore.ipsw
and press enter.cd Downloads
Get-FileHash iPhone11,8_17.2.1_21C66_Restore.ipsw -Algorithm SHA1
1fcf5997774e44da4371552792b7beff5136582b
. If it doesn't, you may need to redownload the file.cd ~/Downloads
openssl sha1 iPhone11,8_17.2.1_21C66_Restore.ipsw
1fcf5997774e44da4371552792b7beff5136582b
. If it doesn't, you may need to redownload the file.cd ~/Downloads
openssl sha1 iPhone11,8_17.2.1_21C66_Restore.ipsw
1fcf5997774e44da4371552792b7beff5136582b
. If it doesn't, you may need to redownload the file.SHA256sum | 4b375b50c57c48453bce38233598677346f9746382838f36d9662280b9482e2c |
---|---|
MD5sum | 1db9467d8d2b4dd097c11e8db4ad26dc |
SHA1sum | 1fcf5997774e44da4371552792b7beff5136582b |
This update provides important bug fixes and is recommended for all users.
For information on the security content of Apple software updates, please visit this website:
https://support.apple.com/kb/HT201222