Nighthawk MR100-100NAS Constantly Rebooting

[quick1234]

My Nighthawk MR1100 router constantly restarts. It initiates power on and the "NETGEAR" logo shows up on screen, the amber light shows up and then after 3-5 seconds it shuts off again and then powers back on to the same point. After 10 or so loops of this fashion the device reboot loop stops and doesn't power on again (to the loop) until I remove power. 

The model version sku is MR1100-100NAS

[JohnPeng]

Are you using T-Mobile SIM? Please take out the SIM card. Then power on the device and check the FW version and PRI version on the device by logging to WebUI.

Thanks