I hope you modify BLE.m for iOS7.1 and iPhone 5s.

[digiponta]

I hope you modify your BLE.m as the blow:
" [p writeValue:data forCharacteristic:characteristic type:CBCharacteristicWriteWithoutResponse]; " (A warning happens, and can't work right )
to
" [p writeValue:data forCharacteristic:characteristic type:CBCharacteristicWriteWithResponse]; "

So, I can use it for iOS7.1 and iPhone 5s, by the above modification.

Thank you.