The Apple iPhone 5c was announced on September 10, 2013. Repair of this device is similar to the previous models, and requires screwdrivers and prying tools. Available as GSM or CDMA / 8, 16, 32 GB / White, Pink, Yellow, Blue, and Green.

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Unable to flash iOS (Different errors on 3u and iTunes


Wondered if someone could help me.

My iPhone 5c wont flash with 3uTools as it comes up with

ERROR: Unable to restore iDevice(-1).

Its at 80% on updating baseband

With iTunes it says

The iPhone "iPhone" could not be restored. An unknown error occurred (50).

I am using a genuine apple USB to my PC.

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Is there a reason you were trying to flash your iPhone? Normally, a -1 error is baseband related and this could be indicative of a damaged baseband IC or it's solder connections. Has the phone been dropped much over its lifespan? Has it come into contact with water?

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I was updating iOS and it didn't complete.

It apparently took a flight down some stairs.


Then it's highly likely there is a bad solder joint on the baseband chip. A micro solder should be able to fix it by reflow / reball.


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Error -1 on 3uTools may be caused by USB cable connection, network and baseband.

Try to change the usb cable, confirm the network connection. If error still exists, you would need to change the baseband.

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Jaymie will be eternally grateful.
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