Heyas,
Have you fixed it yet? If so let me know I have same phone but bought it from chinavasion.com/vnpx
It dose exactly same thing, now I know how to get into phone...with phone off ..hold power button and volume button up to get into android system recovery. it starts with android when it lays down with plate open it in system recovery mode. let go and press back button to pull up menu. volume up down to move enter(home button) o select.
this is list of following commands available: reboot system now, apply update from ADB, apply update from sdcard, apply update from cache, wipe data/factory reset, wipe cache partition, backup user data, and finally restore user data. now to reset my phone when in loop I have been using wipe data/factory rest. when done reboot and go through like you just got phone. I skip all Google crap and Wi-Fi top get back into phone then restore from backup. Now the next way to get into phone is at power off... press power and down volume key hold till you get into factory mode. this screen has Auto test, item test, test report, debug test, clear eMMC, Version, and reboot. the only thing I have done on this screen was to use version. sorry all I got at moment hope it helps please let me know if you can fix it for the phone is very nice and I to want to keep it. Mike