My iPhone battery died during the ios7 update and will not turn on without plugging my cable on and is stuck on apple logo

My iPhone is not working at all ;
When I upgraded to IOS7 my battery died when it was installing half way through.
Ever since it has been dodgy but last week it just turned off and wouldn't boot at all.
When I try to turn it on without a power adapter it does not work but when i plug my power adapter in,
it comes on but loads onto apple logo then onto the cable into itunes i've plugged it into itunes and it gets so far then it 
comes up with an error (23).
CAN SOMEONE HELP ME I DESPERATLY NEED MY IPHONE WORKING

Reset the device by pressing and holding the home and power buttons for 15-20 seconds until the white Apple logo appears.

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