Originally Posted by aviad82
How can I do it with CWM? Can i install the original ROM without wiping the device?
Well the idea was to do a clean installation of the latest release and then do the minor updates again, so no. Unless you can find out what went wrong exactly and correct it.
Originally Posted by Xalis
My z7 mini rebooted and is stuck on the nubia logo, I wasn't doing any software change.
There is a way to turn the phone off without removing the warranty sticker to remove the internal battery?
Try holding in the power button for about 20 seconds when the phone reboot, repush the power button and hold in volume up button as well... That would get you to the recovery from there you can reinstall the rom your were using before.