How do i remove the encryption on my phone a zte maven2 z831 and remove the user and guest accounts

[Android Central Question]

I'm trying to unencrypt my z831 zte maven2 I have factory reset didn't help . also how do I remove the user and guest accounts on this phone as well

 

[belodion]

Have you owned the phone from new?

 

[B. Diddy]

Welcome to Android Central! It sounds like you're trying to factory reset a phone that belonged to someone else. Contact that person and ask them to help you remove their Google account in order to do a proper factory reset.