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iPhone 5c (GSM) iPhone 5c (GSM) iPhone5,3
IPSW Unsigned 12F70

iOS 8.3

OS
iOS
Version
8.3
Build ID
12F70
File Size
1.54 GB
Release Date
2015-04-08
Last Updated
2015-04-04

About This Firmware

iOS 8.3 (build 12F70) is an official Apple IPSW for the iPhone 5c (GSM), released on 2015-04-08. The file is served directly from Apple's CDN. This firmware is no longer signed by Apple. Standard downgrades are not possible, but the file remains available for reference and advanced use.

Verify the download using the SHA-256 or SHA-1 checksum listed in the Checksums section below.

Filename

iPhone5,3_8.3_12F70_Restore.ipsw

Checksums

SHA-256 a12b66d10594b54206f3a7cf908c6c6a80e34c3306b1c9f7ec0bf6278bd5b73d
SHA-1 5bfd47eda92371d0459b7a7c955a547968e43edd
MD5 c07fc0cacc77e08424d1a2d2a50578dd

Direct URL

https://secure-appldnld.apple.com/ios8.3/058-15010-20150408-6F9DB66C-DAEB-11E4-8834-996C90F2D2C2/iPhone5,3_8.3_12F70_Restore.ipsw

Other Devices

How to Restore with This IPSW

iTunes / Finder

macOS & Windows
  1. Download the .ipsw file to your computer.
  2. Connect your iPhone 5c (GSM) via USB.
  3. Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
  4. Update (keep data): hold Option (Mac) or Shift (Windows) and click Update, then pick the .ipsw file.
  5. Restore (erase & install): hold Option / Shift and click Restore iPhone…, then pick the .ipsw file.
  6. Wait for the process to finish - do not disconnect.
Restoring will erase all data on the device. Back up first.

3uTools

Windows
  1. Download and install 3uTools from 3u.com.
  2. Connect your iPhone 5c (GSM) via USB and trust the computer on the device.
  3. Go to Flash & JBEasy Flash.
  4. Click Import and select the downloaded .ipsw file.
  5. Choose Flash mode: Update keeps data, Restore wipes the device.
  6. Click Flash and wait for the progress bar to complete - do not disconnect.
Only flash firmware that matches your exact device model.

DFU Mode

Recovery tip

If your device is stuck in a boot loop or iTunes/Finder does not recognise it, enter DFU mode first, then select the .ipsw file as normal.

iPhone 8 / X and later

  1. Quickly press & release Volume Up
  2. Quickly press & release Volume Down
  3. Hold Side button until screen goes black
  4. Hold Side + Volume Down for 5 s
  5. Release Side, hold Volume Down 5 more s
  6. Black screen = DFU active

iPhone 7 / 7 Plus

  1. Hold Sleep/Wake + Volume Down for 8 s
  2. Release Sleep/Wake, keep holding Volume Down for 5 s
  3. Black screen = DFU active

iPhone 6s and earlier

  1. Hold Sleep/Wake + Home for 8 s
  2. Release Sleep/Wake, keep holding Home for 5 s
  3. Black screen = DFU active
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