RM520N-GL auto-reboot when connects to 5G

I’ve recently purchased a RM520N-GL modem. Every time the device is connected to 5G network (LED light changed to green), after 1 or 2 seconds, it auto-reboots (LED light changed to red), then when the UE finished reboot and connects to 5G network it reboots again. There is no problem when it is connected to 4G networks. Can you please help ?

P.S. It’s not related to Windows driver because I used USB cable with power only, no data connection.

What M.2 board are you using?
You might have a similar issue to some of us where the power draw of the RM520N-GL in 5G exceeds the power supply of the M.2 board, which then results in a temporary shutdown or loss of internet connectivity.

I’m using the one from JinYuShi, like attached.
m.2

I just tried another M.2 board from another manufacturer. I got the same result, it auto-reboots once connects to the 5G network.

Dear @eyau
Please provide enough power supply and test again.

Dear Silvia & dchang0,
Thanks very much for the advice. It is indeed a power issue. I changed to another cable and USB port, the problem is solved.

Can you also help to reply to my other post titled ’ Windows tools to capture and device NR-RRC ?

Thanks

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