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iTunes to iPhone "Unknown error 0xE800007F"

I have Wi-Fi Sync active and it works great unplugged from power -- but when I plug my phone into power and it starts syncing, iTunes says the following:


"iTunes could not connect to this iPhone because an unknown error occurred (0xE800007F)."


Searching gives me zilch. Anyone have an ideas? Everything is running the latest verison of iOS, etc., etc...

Posted on Oct 14, 2011 9:02 PM

Reply
376 replies

Feb 3, 2012 6:07 AM in response to Maury Mccown

Bump.


Same thing. iPhone 4S with WIFI sync turned on. iTunes 10.5.5.3 on Windows Vista 32-bit.


Note: iPad 1 is also hooked to power and has never given this message. Just the iPhone.


Where is the iOS update post-5.0.1 that was supposed to fix the iPhone battery issue, and hopefully the 0xe800007f issue as well?


So annoying! Though not as annoying being a slave laboror at FoxConn so we can all save $65 on the iPhone 5, I imagine :\ First world problems!

Feb 14, 2012 8:36 AM in response to Myhlendorph

Searching online I found a reference to an iOS5 function AMDeviceStartService returning the error value 0xe800007f. I'm not claiming that this is an error from that function, but that the return values from that function might give us a hint as to what's going wrong. The return values are:

* MDERR_OK if successful

* MDERR_SYSCALL if the setsockopt() call failed

* MDERR_INVALID_ARGUMENT if the Lockdown conn has not been established


Perhaps it's an unhandled disconnect from an existing (open but perhaps not active) socket connection to the device? Can someone with the dev toolkit confirm the values of these codes and tell us which one is e800007f?

iTunes to iPhone "Unknown error 0xE800007F"

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