Download iOS 8.3 (12F70) 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 8.3
Release Date 2015-04-08
Update Date 2015-04-04
Sha1sum
5bfd47eda92371d0459b7a7c955a547968e43edd
Sha256sum
a12b66d10594b54206f3a7cf908c6c6a80e34c3306b1c9f7ec0bf6278bd5b73d
md5sum
c07fc0cacc77e08424d1a2d2a50578dd
Size 1.54 GB
FileName
iPhone5,3_8.3_12F70_Restore.ipsw
Status

Download IPSW (1.54GB) Check device info
Release Notes

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

This release includes improved performance, bug fixes, and a redesigned Emoji keyboard. Changes include:

Improved performance for:

Wi-Fi and Bluetooth fixes

Orientation and rotation fixes

Messages fixes

Family Sharing fixes

CarPlay fixes

Enterprise fixes

Accessibility fixes

Other improvements and bug fixes

For information on the security content of this update, please visit this website:

http://support.apple.com/kb/HT1222