my iphone 5 i updated it on 5/1/14 and it went into recovery mode and wont turn on and itunes wont read the iphone

my iphone 5 i updated it on 5/1/14 to ios 7.1.3 and it went into recovery mode and wont turn on and itunes wont read the iphone i tried restoring it it did not work every time i try to turn it on it goes to the apple start up screen then turns black and says connect to itunes. I've tried multiple times turning it on and restoring it nothing works. I had the phone almost two years.😢😟ℹ⚠⚠