How exactly you can possibly regain access to your ZTE device may also depend on it model number (assume it is an Adroid device otherwise). The following are generic workarounds that have been known to work.
If you still remember the Gmail email address you used to setup your device, then tap on "forgot password" and then enter everything before the "@" smbol as your user name (e.g. If your email address is [email protected]
only enter "name") and enter "null" as your password and try and observe.
Method Two (More advanced)
Pre Condition: You remember the pattern and you remember your Google password and Android account is listed while using instructions below.
1. Using your computer, log into your Google account. You can verify your correct Google account using the Additional Tip at the bottom of this article.
2. Go to this link directly – accounts.google.com/IssuedAuthSubTokens OR click your e-mail on the top right corner, select Account settings, then hit “Visit the previous version of the Google accounts screen” towards the bottom, click “Authorizing applications & sites ” under your Personal Settings > Security.
3. Under “Connected Sites, Apps & Services – “Revoke Access” of your Google Account with Android. You will see the screen showing “You have successfully revoked access to Full Account Access” [Alternate for step 3 - If you have already signed up for 2-Step Authorization previously and are able to generate a new application-specific password at the bottom, go ahead and generate a new password and use that password to unlock your device]
4. Enter Gmail login and password on your phone. It will now accept your login details and will show a pattern screen. Enter the “correct” pattern and you can see the home screen.
Method Three (Last Resort that works on all licenced Androids devices)
A hard reset may be the only option you may be left with should the above be to no avail. For us to assist with the procedure, it will be necessary to know the exact model number of the ZTE device. You can easily comment under the self same question with the model number.