Download iOS 10.2.1 (14D27) 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 10.2.1
Release Date 2017-01-23
Update Date 2017-01-13
Sha1sum
a091a70b44f8aeb347408447c15d1718f8c9962a
Sha256sum
59903e0e126d05b695fbe730a7c61a17dac9d9cf0139817d943a32f6bd9f9a0e
md5sum
51f37d69d300b7d3d511667da53a6b74
Size 2.19 GB
FileName
iPhoneSE_10.2.1_14D27_Restore.ipsw
Status

Download IPSW (2.19GB) Check device info
Release Notes

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

iOS 10.2.1 includes bug fixes and improves the security of your iPhone or iPad.

It also improves power management during peak workloads to avoid unexpected shutdowns on iPhone.

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

https://support.apple.com/HT201222