HL7812 how to test ntn with em sim

First, which firmware for HL7812 used to test NTN?

it should be in Release 6.1 (FW 5.7.3.0)

Have you tried it?
My HL7812 Version:
ati9
HL7812.5.6.3.0-24.04.0.FreeRTOS.w17
HL78xx.5.6.3.0.RK_03_02_00_00_41841_001.20240510
2024/05/10 09:31:14
IMEI-SV: 3511444401218619
Legato RTOS: 24.04.0.FreeRTOS.w17 2024/04/02 17:47:34
atSwi: HL78XX.5.5.16.0-24.04.0.FreeRTOS.w17
UBOOT: 01.03
Apps: RKAPP_03_02_00_00_41331_007__5ee6735fd5465a001c2cdaf82a6494f89cbccecd
MAC: ALT1250_03_02_00_00_41831_NBNTN
PHY: 0.0.325792
PMP: 326080
AISE: ISE2APP_00_00_00_09

SBUB: 1
SBFW: 1
FPuK1: CBF402DD
FPuK2: 4BE7EB7F
RBUB: 0
RBFW: 0
MCU-Disable: 1

no, i have not tried it :
https://source.sierrawireless.com/resources/airprime/software/hl781x-and-hl7845-firmware/hl781x-and-hl7845-firmware-release-history-item/#sthash.lghZ1HIn.9THQ2MLe.dpbs

I am tring:
+CEREG: 0

%NOTIFYEV:“EMMSTATE”,2

%NOTIFYEV:“ROAM”,1

%NOTIFYEV:“EMMSTATE”,9

+CEREG: 2

%NOTIFYEV:“SIMSTATE”,3

%NOTIFYEV:“RRCSTATE”,1

%NOTIFYEV:“EMMSTATE”,3

+CEREG: 3

%NOTIFYEV:“RRCSTATE”,2

%NOTIFYEV:“RRCSTATE”,0

%NOTIFYEV:“EMMSTATE”,9

+CEREG: 2

%NOTIFYEV:“RRCSTATE”,1

%NOTIFYEV:“EMMSTATE”,3

+CEREG: 3

%NOTIFYEV:“RRCSTATE”,2

%NOTIFYEV:“RRCSTATE”,0

Not sure if you can try in this firmware 5.6.3.0

I’ve already upgraded to 5.7.3.0, I’ll try again.

i don’t quite see this version is officially released…

Sierra FAE sended it to me