Two BC68 MQTT Cereg0,4 problem

When I try to start two different bc68s at the same time, one of them always interrupts the data transmission. the device that interrupts the data transmission Cereg: transmits the answer 0.4 how can I solve this problem?

Can you provide the relevant Log?

How to get module logs for bc68

Quectel_UEMonitor操作指导与参考(CN&EN)_BC28&BC95&BC68&BC35G&BC95G.pdf (1.3 MB)
UEMonitor.zip

Unfortunately, I do not have access to the module logs. However, when I try to connect two different devices to io.adafruit.com, the other one gives qmtstat=0.1 at at+conn= stage

these are different devices. Left and Right side

This problem is difficult to analyze and judge, the result is that the MQTT connection is interrupted; I recommend that you use another MQTT server for verification

so what is the reason for cereg 0.4 answer

+cereg:0,4, It is common when the terminal is in a weak signal environment, I need to debug log to determine

[2023-08-01_16:41:15:654]Quectel
[2023-08-01_16:41:15:654]BC68
[2023-08-01_16:41:15:654]Revision:BC68JAR01A10

The module I have says JAR02, but the answer that comes with the ATI command is as above. Can you send me the updated BC68 firmwares for me to update please.

BC68 has been discontinued and I can’t find the corresponding firmware