iOS 26.3.1 (23D8133) for iPhone Air

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Firmware Information

Version 26.3.1

Build ID 23D8133

Release Date Mar 4, 2026

Upload Date Mar 1, 2026

Filename iPhone18,4_26.3.1_23D8133_Restore.ipsw

File Size 10.00 GB

MD5 99e16b47aea60efa90d5e5766621ac87

SHA1 5d138a0930f9ead4c45f42c851c5ece479e96830

Device Information

Device iPhone Air

Identifier iPhone18,4

BoardConfig D23AP

Platform t8150

CPID 33104

BDID 10