same problem here with flashing firmware from international to global/chinese , but I am not in root, so got back to international firmware,maybe at XDA they can help you out !  

Didn't download the update after press start button?

No, it comes back to screen as shown

Hi, my phone cant access the programs it just says loading loading loading, and the fly logo. Now in my phone I have the fly 6.1.2.0G room. I have tried all the steps, and it did not work. In tried many times. I can not restart the phone because I think maybe the root button is on. Og þegar ég flassi það er "the firmware is too old

check my post brother

brother does not get Version: Fly 6.1.2.0G to A Version