12.2.1 Firmware Download
12.2.1 firmware download — compatible with 8 devices, released 2022-02-10, build 21D62、16L250. Download links direct to Apple servers, with signing status verification and SHA-256/SHA-1/MD5 checksum validation. 7 devices can still verify this firmware version.
Mac (7)
7 devices support this version
| Device | Identifier | Build | Size | Signing | Action |
|---|---|---|---|---|---|
| MacBook Pro (M1 Max, 14-inch, 2021) | MacBookPro18,4 | 21D62 | 13.17 GB | Signed | Details → |
| MacBook Pro (M1 Max, 16-inch, 2021) | MacBookPro18,2 | 21D62 | 13.17 GB | Signed | Details → |
| MacBook Pro (M1 Pro, 14-inch, 2021) | MacBookPro18,3 | 21D62 | 13.17 GB | Signed | Details → |
| MacBook Pro (M1 Pro, 16-inch, 2021) | MacBookPro18,1 | 21D62 | 13.17 GB | Signed | Details → |
| Mac mini (M1, Late 2020) | Macmini9,1 | 21D62 | 13.17 GB | Signed | Details → |
| MacBook Air (M1, Late 2020) | MacBookAir10,1 | 21D62 | 13.17 GB | Signed | Details → |
| MacBook Pro (M1, Late 2020) | MacBookPro17,1 | 21D62 | 13.17 GB | Signed | Details → |
Apple TV (1)
1 devices support this version
| Device | Identifier | Build | Size | Signing | Action |
|---|---|---|---|---|---|
| Apple TV 4 (2015) | AppleTV5,3 | 16L250 | 1.76 GB | Unsigned | Details → |