NETGEAR Nighthawk M1 MR1100 AC1000 Wireless Dual-Band Gigabit Mobile Router - Manual (Page 24)

The Router Setup page displays.
5. In the TETHERING section, select Charge only.
Your settings are saved. When you connect the USB type C cable, the mobile router battery charges,
but you cannot use the tethered connection to access the mobile router with a web browser.
Use the Mobile Router to Jump Boost Another Device
If your smartphone or other device is low on or out of battery power, you can give it a boost by connecting
it to the mobile router’s USB port A connector.
Figure 4. Jump boost begins automatically once the devices are connected
Manage Battery Usage and Charging
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Nighthawk LTE Mobile Hotspot Router Model MR1100