BG95-M3 AWS AT Commands

Chip MG95-M3 Q1-A8232
Quectel
BG95-M3
Revision: BG95M3LAR02A03

Hello Everyone , I’m trying to connect BG95 module to AWS IoT cloud over MQTT using AT Commands.I’m using this guide (https://www.quectel.com/wp-content/uploads/2021/10/Quectel_BG95_Series_AWS_IoT_Platform_Access_User_Guide_V1.0_Preliminary_20200825-1.pdf).But it didn’t work.

MQTT open command is ok but then it close by itself , when I send connect .I already load the 3 certificates using all the commands in the guide .

Using simple MQTT (no SSL) works without issues

AT+QMTOPEN=2,“*****-ats.iot.us-east-1.amazonaws.com”,8883

OK

+QMTOPEN: 2,0
AT+QMTCONN=2,“Quectel”

OK

+QMTSTAT: 2,3

Thanks in advance !

pls refer to