The wifi-sharing feature allows you to share your 3G connection with everyone around through Wifi signals.
Here's how to share 3G as Wifi on Mobiistar Zumbo J2:
Step 1: Go to 'Settings' and select 'Add.'

Select 'Add'.
Step 2: Choose 'USB internet & mobile hotspot'.

Choose 'USB internet & mobile hotspot'.
Step 3: Select and enable 'Wifi hotspot.'

Select and enable 'Wifi hotspot.'
Step 4: Choose 'Configure wifi broadcast' to modify the wifi name and password, then save the changes.

Choose 'Configure wifi broadcast' to modify the wifi name and password, then save the changes.
So now, we have successfully shared 3G as Wifi on Mobiistar Zumbo J2. Best wishes to all of you.
