This firmware is signed. This means that you can restore to it in iTunes.
Release Date | 03 May 2021 |
Upload Date | 27 April 2021 |
File Name | UniversalMac_11.3.1_20E241_Restore.ipsw |
File Size | 12.98 GB |
SHA256sum | 0ed07e6e1c0401f9e81f8f3a649466c40c5521ac9296f4cac9962e425ed84dfe |
MD5sum | 6659d47f890423c8ca043a771042c097 |
SHA1sum | e6fd12bda1fd7267cad0c8189b00210ac4009a60 |
Identifier | MacBookAir10,1 |
cd ~/Downloads
.idevicerestore -e UniversalMac_11.3.1_20E241_Restore.ipsw
and press Enter.