[Fixed] Airtel 4G Dongle not working after upgrading to OS X El Capitan

Step 1: Open System preferences.

Step 2: Click on networks

Step 3: Add new Service by clicking left bottom corner plus button.

Step 4: Select “HUAWEIMobile-”

Step 5: Then select default configuration and Enter “ *99# “ in Telephone Number

Step 6: Click on connect

Step 7: Enjoy ;)