Rm520n-gl no 5g connectivity, only 4g supported

IoT Modules 5G Module
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1

Hello, I have RM520n-gl modem, and the problem is I can’t reach 5g connection. I HAVE ATTACH all 4 antennas to this modem? My country is Malaysia and use NSA 5G.

Which use LTE BAND 28 and NSA N78. I have different 5G modem/module and it work well.

AT+QENG=“servingcell”
+QENG: “servingcell”,“NOCONN”,“LTE”,“FDD”,502,12,ABF851E,255,9310,28,5,5,14B7,-106,-9,-77,17,15,-20,-

OK

AT+QNWPREFCFG=“mode_pref”
+QNWPREFCFG: “mode_pref”,AUTO

OK

AT+QNWPREFCFG=“nr5g_disable_mode”
+QNWPREFCFG: “nr5g_disable_mode”,0

OK

nn
nn849×1280 277 KB

CURRENT FIRMWARE VERSION: RM520NGLAAR01A07M4G
MODEL ROUTER: SUNCOMM O2

also tested on OPENWRT Z8102ax modem router have error on connection log. can’t read imsi or sim.

2

Dear @matrock47
Did you test the latest firmware? If still have issue, it is better to capture log.

3

Hi Silvia,

The firmware is working …now I get a 5G network NSA. But I still facing issue with sim detection on both pcie and usb data interface on openwrt.

i also have another module rm520n-gl can i backup the data and restore it to another rm520n-gl module? how to identify the module have issue with sim reading?
The sim is able to detect on usb adapter on windows

4

Dear @matrock47
Did these two moduel can’t detect SIM card? Do you try other SIM?
Please query:
AT+CPIN?
AT+CFUN?