Change the Mobile Hotspot Password
Change your Mobile hotspot password.
1.From a Home screen, swipe up to access Apps.
2.Tap 
Settings > Mobile hotspot and tethering > Mobile hotspot.
3.Tap the password and enter a new password.
4.Tap Save.
Allowed Devices List
Control whether devices connect to your Mobile hotspot with the Allowed devices list. After you add devices to the list, they can scan for your device and connect using your device’s Mobile hotspot name and password.
Note: Using your device as a Mobile hotspot consumes battery power and uses data service. While Mobile hotspot is active, your device’s applications use the Mobile hotspot data service. Roaming while using your device as a Mobile hotspot incurs extra data charges.
1.From a Home screen, swipe up to access Apps.
2.Tap 
Settings > Mobile hotspot and tethering > Mobile hotspot.
3.Tap 
More options > Allowed devices, and then tap Add to enter the other device’s Device name and MAC address.
4.Tap Add to add the device.
•To restrict connections to your Allowed devices list, tap Allowed devices only.
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