better compare the log with the same setting, otherwise it is quite hard to find the differences…
Hi jyijyi
Here are the logs and AT command replies you requested. USB composition is the same now. AT!priid? shows a strange difference…
SN_17310784_notOK.zip (46.2 KB)
SN_17201407_OK.zip (62.8 KB)
i saw that AT!CUSTOM and AT+CGDCONT are different, you need to confirm: are they related to the failure?
BTW, you might need to enable more debug trace in the modemmanager
Can you tell me the full commands to use? And on which of the two systems?
What about the difference in “AT!priid?” ?
Priid shows 0, could those module being engineering sample?
BTW, you might need to enable more debug trace in the modemmanager
I don’t know, I have to check with our purchasing.
But the module with priid 0 is the “good” one…
Can you check this directly with the IMEI or serial number?
IMEI: 357999720052978
FSN: DX3144002205G1
You need to contact support team of semtech
I only know this module is out of warranty
ok, I’ll ask our distributor to check this with Sierra Wireless support.
Hi jyijyi
They are not related to the failure. See new logs of failed module.
SN_17310784_notOK2.zip (47.4 KB)
BTW: The customer says that he is already on the max log level for ModemManager.
Then what is the problem of modem manager?
It fails (see journal.log). We do not understand why.
Can you forward this to the EM7590 developper team to check the hardware/firmware differences of the two modules (serial numbers DX3144002205G1 and DX5043012504H1)?
Do you see any firmware difference in the AT log?
Did you contact support team of semtech?
No, only the AT!priid? difference.
But we just heard from the distributor that there are different revisions (B, D) of the EM7590 and he confirmed that newer revisions (D) have a problem with firmware 01.01.07.00.
If so, probably you need to upgrade firmware
Yes, but we are very disappointed that we have not been informed by Sierra Wireless about any change in the EM7590 modules. It is very embarrassing for us and our customer to update all the systems.
We can close this case. Thanks for your help.