If you can access the device's home screen and simply want to change or remove the screen lock, or remove a linked Google account, you can do so from within the Android settings menu.
Ensure the device has at least 40% battery. Disconnect from any USB cables. How to unlock SUNMI V2 Pro - HardReset.info
Your SUNMI V2 Pro will now restart as if it were a brand-new device, free of any screen locks or previous settings. If you can access the device's home screen
It is also worth noting that some devices may have additional protection if enrolled in an MDM or EMM solution, such as Scalefusion, which applies advanced security features like password enforcement and factory reset protection. Such managed devices may require an administrator to unlock them. or remove a linked Google account