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Old 03-22-2014, 19:02   #1 (permalink)
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Join Date: Dec 2006
Location: Cuba
Age: 52
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iPhone 4 error 21

I have problems to get an iPhone 4 on the block constantly rebooting, only plugged into the PC, when I unplug the USB off.
I've tried every remedy, modifying the Host, changing cable, battery PC, etc.
In all cases I get error 21.
there any explanation for this error?


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