Download iOS 14.2.1 (18B121) for iPhone 12

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 iPhone13,2
iOS Version 14.2.1
Release Date 2020-11-19
Update Date 2024-06-03
Sha1sum
294a57582a12aa1833d9c29d06486804a0fd33e7
Sha256sum
9fe010467027bcfd61bbe2257f25201d2440e701b1fab7ee72162fedb670c478
md5sum
5030ea892b3788d71594441838398b15
Size 5.08 GB
FileName
iPhone13,2_14.2.1_18B121_Restore.ipsw
Status

Download IPSW (5.08GB) Check device info
Release Notes

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

iOS 14.2.1 addresses the following issues for your iPhone:

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

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