Remove the Lock Screen Password

If the None choice is colorless out after you plan to cancel your lock screen word, perform the following: 

1. Check whether or not you've got logged in to apps that have set the protection policy, like Exchange Email, need a lock screen word. If you've logged in to such apps, log-off, so perform the following: Open Settings, look for Clear credentials or Delete all credentials, then bit Delete. Clear credentials can clear your account data. 
2. Check whether or not a VPN is connected. Open Settings, look for and access VPN, and disconnect the VPN. 
3. Check whether or not some apps are activated in Device directors Apps activated in Device directors need a lock screen word. To deactivate this sort of app, open Settings, look for Device directors, and bit Deactivate. 
4. Use the backup PIN to cancel the lock screen word (applicable solely to EMUI four.1 and earlier versions). If your phone supports a backup PIN: head to Settings and look for and access Pattern. Enter the planned Pattern, enter the backup PIN, and switch off your phone screen. Then enter AN incorrect lock screen pattern 5 times during a row till the screen freezes. When concerning one minute, the screen can unfreeze. Then enter the proper lock screen pattern, and also, the screen lock technique is going to be set to None.
5. Strive to reset all settings Open Settings, look for and access, Reset all settings, then follow the on-screen directions to reset all the settings on your phone. 
6. If the difficulty persists, copy your information and perform the following: Open Settings, look for and access manufactory information reset, then follow the on-screen directions to reset your phone to its manufactory settings.