iOS 26.3.1 (23D8133) for iPhone 15

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Firmware Information

Version 26.3.1

Build ID 23D8133

Release Date Mar 4, 2026

Upload Date Mar 1, 2026

Filename iPhone15,4_26.3.1_23D8133_Restore.ipsw

File Size 9.45 GB

MD5 a7855ed5a885076e95c9f6f34cc5a213

SHA1 20fded225621d86086c747676b0944b27963898b

Device Information

Device iPhone 15

Identifier iPhone15,4

BoardConfig D37AP

Platform

CPID 33056

BDID 8