Download iOS 9.3.5 (13G36) 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 not being Signed by Apple

Firmware Identifier iPhone6,1
iOS Version 9.3.5
Release Date 2016-08-25
Update Date 2024-06-03
Sha1sum
db882b29c5c8845e194f7da98da023074aaef5f8
Sha256sum
782dcc4ef8ab37c456bcfd850c6b1b249ec976375fcc2a21c59e58994e2cad46
md5sum
ab0e0d715cd4fb5ca311b7e2751f2292
Size 1.85 GB
FileName
iPhone6,1_9.3.5_13G36_Restore.ipsw
Status

Download IPSW (1.85GB) Check device info
Release Notes

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

iOS 9.3.5 provides an important security update for your iPhone or iPad and is recommended for all users.

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

https://support.apple.com/kb/HT201222