Download iOS 13.1.3 (17A878) for iPhone XS

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 iPhone11,2
iOS Version 13.1.3
Release Date 2019-10-15
Update Date 2024-06-03
Sha1sum
e7e4ece7fbaa146ea5037e4fbabae271fdb23a0d
Sha256sum
eb2d1de4287ac7b4afad401ae3e8778ef3891deb894d53332c8a5774432b936e
md5sum
c22248b52c40a0a73885cf58bf06ff3d
Size 4.11 GB
FileName
iPhone11,2,iPhone11,4,iPhone11,6_13.1.3_17A878_Restore.ipsw
Status

Download IPSW (4.11GB) Check device info
Release Notes

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

iOS 13.1.3 includes bug fixes and improvements for your iPhone. This update:

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

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