Download iOS 15.8.7 (19H411) for iPhone 6s

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

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPhone8,1
iOS Version 15.8.7
Release Date 2026-03-11
Update Date 2026-03-08
Sha1sum
0bfc0444cbe0cea5bc4c174d10acb8398e24440e
Sha256sum
cf8200458e337434bce0ca217f23c9f4d90e2489aae3df5c90c6f20687455341
md5sum
e042baf7cc92d8e9ae6f28e276589944
Size 4.91 GB
FileName
iPhone_4.7_15.8.7_19H411_Restore.ipsw
Status

Download IPSW (4.91GB) Check device info
Release Notes

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

Face ID

Emoji

FaceTime

Siri

Vaccine cards

This release also includes the following enhancements for your iPhone:

This release also includes bug fixes for your iPhone:

Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/100100