I just held the power button till my phone turned back on. Then the phone turned to FTM. So I kept the power button down. Till it shut off and on. It finally came on.
"Held the power button and lower volume button down at same time.It said FTM a few times then it eventually came on.This is what girl told me at store I bought the phone from.Hope this helps because mines just went off for no reason.
She said the ZTE's have all kinds of bugs and problems."
I just ran in to this issue my low volume button wuz jammed I messed with it and den I held the low volume button down at the same time wit the power button n den I notice my fone turned on n now I'm able to use it n no more FTM on my screen I waznt able to turn my fone on or off but after I tried dis my fone iz now working hope dis helps u out dere n my fone is a non removable battery
"Thank you... my down volume button was stuck... i just tapped it a few times with the handle of scissors and it popped back out... then it turned on...