My screen is broken, but I can force DFU, which I did.

In iTunes, I get "Cannot update software."

The to restore I Download 10.3.3 firmware, error 14 cannot update.

Any workaround that you can think of for erasing the data on this device?

  • Apple has stopped signing iOS 10.3.3, you cannot update to it anymore.
    – JMY1000
    Nov 29 '17 at 1:55
  • Thank you kindly. And this is the only firmware that works with 5c right? Nov 29 '17 at 2:10
  • It's the latest one, all the others aren't being signed as well. :/
    – JMY1000
    Nov 29 '17 at 2:10

No easy workarounds if iTunes won't restore / erase an iPhone in normal mode, let alone when you have it in DFU mode. Apple Configurator might be worth a try, but it uses the same library / underlying erase code the last time I checked. Same with Xcode.

I suppose the only workaround is to disassemble it and destroy / sanitize the data by jumping some of the pins to take control of the storage. The getting it open might be easy for most skilled people - the jumping the pins would need specific technical tools and training as would getting a controller to erase systematically the data.

  • Physical destruction would be the alternative to software erase
  • repairing the phone to functionality also would be an alternative

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