Download iOS 10.2.1 (14D27) for iPhone 5c (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 iPhone5,3
iOS Version 10.2.1
Release Date 2017-01-23
Update Date 2017-01-13
Sha1sum
cef2111be93e40339abae934bb663d8099b088a2
Sha256sum
37296678eb3b6a1e4e19b5e6c1c9bd73426127f782d347871c51cddbcc3080e2
md5sum
1a858151775952fd912ee17249cdb901
Size 1.84 GB
FileName
iPhone_4.0_32bit_10.2.1_14D27_Restore.ipsw
Status

Download IPSW (1.84GB) 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