I currently have a ZTE Maven and I it is a version 5.1.0 and it is locked with someone else's Google account, is there a factory reset protection override? I held the volume up and home button and power button all at once and proceeded to the factory reset/wipe device setting and completed this action, however it did not wipe the Google previous owner credentials from the phone. Is anyone aware of a way to get in the back door so to speak and obtain a work around this issue? Thank you for taking the time to read this and offer any available solutions. As I very much need to get this phone unlocked.