Technically, the JioFi M2S is carrier-locked to Reliance Jio. While there are various "firmware hacks" floating around the internet claiming to make it work with Airtel or Vi, many of these can or void your warranty.
One of the best ways to make your JioFi feel "unlocked" and snappier is to bypass Jio’s default DNS servers, which can often be slow or congested. unlock jiofi m2s better
In the Admin Panel, go to > LAN Configuration . Technically, the JioFi M2S is carrier-locked to Reliance Jio
Some users swear by placing a small curved piece of kitchen foil behind the device (facing your room) to reflect the signal inward. 6. Manage Connected Devices In the Admin Panel, go to > LAN Configuration
Turn off "Background Data" on your smartphone so it doesn't hog the bandwidth for app updates while you're trying to work. 7. Use it via USB (Tethering)