21
Retain Times
and
PIN Operation
selection to lock or
unlock the SIM card.
If you don't want to use PIN, please select "Disabled”, then
input the correct PIN code and click “Save" button.
Important Note
We recommend to disable the PIN code lock of the SIM
card before inserting it in the 4G Router.
You have 3 chances to input the correct PIN code, if all
codes are wrong for three times, you will need to input PUK
code to unlock PIN code.
Also, if the PUK code is incorrect for 10 times in a row, SIM
card would be locked. So please set this function carefully.
For more details, please contact your mobile operator.