Download iOS 12.1.3 (16D39) for iPhone 7 (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 iPhone9,3
iOS Version 12.1.3
Release Date 2019-01-22
Update Date 2019-01-11
Sha1sum
958b8a5403f068d7d5ea7db7c6015637006a3778
Sha256sum
144017bc3b3da9666400a60597fbc229111b38f347459411ba7ada083d367ad8
md5sum
db4f37305b9b559ea79bd2d3bbb06925
Size 3.11 GB
FileName
iPhone_4.7_P3_12.1.3_16D39_Restore.ipsw
Status

Download IPSW (3.11GB) Check device info
Release Notes

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

iOS 12.1.3 includes bug fixes for your iPhone or iPad. This update:

This release also includes bug fixes for HomePod. This update:

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

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