Step 1
Access the Roaming Tab at the bottom and select Subscribe to more services.

Step 2
Click on Network Lock.

Step 3
Click on Subscribe. 
Select Confirm and OK to subscribe. 
You will receive a confirmation SMS when Network Lock is subscribed.

Step 1
Access the Roaming Tab at the bottom and select Network Lock.

Step 2
Select Unsubscribe.

Step 3
Select Confirm and Ok to unsubscribe.
You will receive a confirmation SMS when Network Lock is unsubscribed.

Step 1
Select My Account.

Step 2
Expand Services and click on Roaming tab.

Step 3
By default, the Data Passport tab will be shown. Select a country to begin.

Step 4
All available Data Passports for the selected destination will be displayed.
Select the desired Data Passport by clicking on the toggle button.

Step 5
Select Confirm.
You will receive a confirmation SMS once the service is activated.

Step 1
Select My Account.

Step 2
Expand Services and click on Roaming tab.

Step 3
Click on toggle button next to the Data Passport to be deactivated.

Step 4
Select Confirm.
You will receive a confirmation SMS once the service is activated.