11 
The PIN needs to be verified
: indicates that you need to enter the 
PIN in PIN text box and submit to verify the PIN. 
The PIN has been verified
: indicates that the current PIN has 
been verified, and you can change, disable or delete the current 
PIN. 
Take the PIN of the SIM card can be modified as an example to 
introduce the PIN operation. If your PIN does not need to be verified, 
Skip “
Step 5”. 
Step 5
In 
PIN operation
, select PIN-related operations. 
Verify
: after you enter the PIN and click 
Submit
, the PIN can be 
verified. 
Enable
: select 
Enable
and click 
Submit
, then you will need to 
verify the PIN. After the PIN has been verified, you can change, 
disable or delete the current PIN. 
Change
: enter a new PIN and click 
Submit
, then you can change 
the current PIN. 
Disable
: select 
Disable
and click 
Submit
, then you will do not 
need to verify the PIN. 
Delete
: select 
Delete
and click 
Submit
, then you can delete the 
PIN. 
4.5 Configuring the Firewall 
The firewall can protect the terminal against malicious access on the LAN port 
and is used when the HG630 works in routing mode. For security reasons, you 
can configure the firewall as follows: 
If you don’t know the default PIN, consult your SIM card provider. 
When configuring the PIN, you must verify the PIN before other 
operation. 
For security reasons or to make the PIN easy to remember, please 
change the PIN.