Download iOS 13.1.3 (17A878) for iPhone SE

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 iPhone8,4
iOS Version 13.1.3
Release Date 2019-10-15
Update Date 2019-10-10
Sha1sum
b8f01a04bdf2e6a40752d5d5b51cf203e634ff43
Sha256sum
677dbb4d3acebc46d36ecbfff60da56d85c65c3723556d0b843964d223f362c2
md5sum
f09680ac559521bd447676397ebfa37b
Size 3.37 GB
FileName
iPhone_4.0_64bit_13.1.3_17A878_Restore.ipsw
Status

Download IPSW (3.37GB) 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