RG500Q-EA "servingcell" wouldn't work with NR5G

Hi threre!!
I have RG500Q-EA (Revision: RG500QEAAAR11A01M4G_KR)
And I want to search “NR5G-NSA”.
So I was using “servingcell”.
It’s working well when I choose LTE or WCDMA mode.

AT+QNWPREFCFG=“mode_pref”,LTE
OK
at+qeng=“servingcell”
+QENG: “servingcell”,“LIMSRV”
+QENG: “LTE”,“FDD”,0,000,20F7113,96,2500,5,3,3,BD01,-86,-15,-54,8,0,-32768,41
+QENG: “NR5G-NSA”,0,000,65535,-32768,-32768,-32768
OK

But whenever I choose NR5G mode or include NR5G mode with other mode.
It’s not working like below.

AT+QNWPREFCFG=“mode_pref”,NR5G
OK
at+qeng=“servingcell”
+QENG: “servingcell”,“SEARCH”
OK

Even when I choose AUTO MODE. It is not working neither.
(Even the device can’t search LTE neither!!)

AT+QNWPREFCFG=“mode_pref”,AUTO
OK
at+qeng=“servingcell”
OK

AT+QNWPREFCFG=“mode_pref”,LTE:NR5G
OK
at+qeng=“servingcell”
OK

Anyone knows about this problem??

Dear @sentient26
Did your SIM card support SA or NSA?AT+QENG=“servingcell” to query the serving cell information, not searching the network. After reside on the cell, it has information.