Download iOS 12.5.8 (16H88) for iPhone 5s (GSM)

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

✅ This IPSW firmware is Signed

Firmware Identifier iPhone6,1
iOS Version 12.5.8
Release Date 2026-01-26
Update Date 2026-01-22
Sha1sum
283ec31c183735a412f1f890ecaf556c4cc7a35c
Sha256sum
65bb7235c1c8c76c951a37c76746c3e7015fdbe9f05850e1a4705103c1f00238
md5sum
824ff1159268627992425fde3caf243b
Size 2.81 GB
FileName
iPhone_4.0_64bit_12.5.8_16H88_Restore.ipsw
Status

Download IPSW (2.81GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

This update extends the certificate required by features such as iMessage, FaceTime, and device activation to continue working after January 2027.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/100100

IPSW File Download FAQ