D3 Series User Manual
Page | 33 Copyright©2023 ZKTECO CO., LTD. All rights reserved.
Method 2 (When there is not a super admin):
1. Remove the back cover with a screwdriver and long press the restore button to restore the device to
factory settings.
2. After a successful restore, enter the default account and password (account: admin, password:
admin@123) on the login interface to log in.