EC25-E can't get IMEI

Technical Subjects Open Solution
1

Hi everyone!!
I have been using EC25EFAR06A01M4G_OCPU_01.001.01.001_SDK on modem EC25-E for developing recent year. It’s worked fine until the new package of modems EC25-E arrives. After re-flashing new ones with QuecOpen FW, I run the example/API/testapi to diagnose what crashing the program. And I found out that:
please input cmd index(-1 exit): 0
ret = -3, IMEI:
please input cmd index(-1 exit): 1
ret = 0, FW Version: EC25EFAR06A01M4G
please input cmd index(-1 exit): 2
ret = 0, Dev Model: EC25EFA
please input cmd index(-1 exit): 3
ret = -3, MEID:
please input cmd index(-1 exit): 4
ret = 0, ESN: 0
I also use QNavigator to double check:
screenshot_1694850125
Is the current SDK that I’m using outdated? If so can I have the lasted one to resolve this error.
Best regards.

2

pls run an try

AT+CGSN

3

Hi @herbert.pan-Q,
Sorry for my slow respond.
screenshot_1694998626
It returns the same error.

4

Maybe you need to refresh the firmware and SDK

5

I have tried refreshing the modem and it doesn’t work either.
But I manage to restore the modem back to its factory firmware.
screenshot_1694999979
Best regards.