Dahua NVR21-S2 SERIES

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Figure 4-2
Step 6 Set unlock pattern.
After set unlock pattern, device goes to password protection interrface. See Figure 4-3.
Note
 Device adopts unlock pattern to login by default if you have set pattern here. If there is no
unlock pattern, please input the password to login.
 Click Skip if there is no need to set unlock pattern.