ZKTeco – MB20 – How to delete a user.
Step 01
On Home Screen, Press OK

Step 02
When prompt to verify Press OK

Step 03
StartIn User ID field, type 999999, then Press OK

Step 04
In User ID field, type 999999, then Press OK

Step 05
In User ID field, type 999999, then Press OK

Step 06
Select All Users, then Press OK

Step 07
Select the user to delete, then Press OK

Step 08
Select Delete, the Press OK

Step 09
Select Delete User, the Press OK

Step 10
Select OK to confirm and Press OK
