Your tablet supports dual SIM functionality, but sometimes you may wish to have only one SIM active while keeping the other in offline mode to avoid disturbances.
To manage SIM cards on your Lenovo Phab 2GB tablet, follow these steps:
Step 1: Go to 'Settings'.

Access 'Settings'
Step 2: Choose 'SIM Card'.

Select 'SIM Card'
Step 3: Select the SIM you want to enable/disable.

Select the SIM you want to enable/disable
Best wishes for your success.
