BC95-G CFUN returns 0

IoT Modules LPWA Module
1

Hi
I received the BC95-G and am trying to make it work.
However, i notice that the command AT+CFUN? returns 0
If i send AT+CFUN=1 the module responds after 2s with
+CME ERROR: 4 Operation Not supported

not supported??

any suggestion as to where should i start looking for a solution?

thanks

2

Have you inserted a valid sim card ？
What returns if enter the AT cmds “AT+CPIN?”
If a valid sim card already in , maybe the RF related data has lost.

3

Hi Vincent
The response to cmd AT+CPIN? is “+CME ERROR:524”

The SIM is supposedly for a network type “NB-IoT band 28”.
I do NOT know if the SIM is damaged or not as i don’t know how to test the actual SIM (but its a brand new SIM).
i did insert the SIM into a std smartphone & i could send an SMS…but i’m not sure if that proves anything.

The version on the BC95-G is Revision:BC95GJBR01A07…is that OK?

thanks

4

set AT+CMEE=2 first ,and you’ll get an text description of the error.

AT+CPIN? is “+CME ERROR:524” indicates the SIM card status abormal.

5

Hi Vincent
The module does not like at+cmee=2
The response to at+cmee=? is +CMEE:(0,1)

do i need to update the firmware in my module?

thanks

6

I’ve found that
err code 524 means UE is in minimal function mode (AT+CFUN=0) .
image

You can try another SIM card .if it doesn’t work , I am afraid you have to upgrade factory firmware.

7

Hi Vincent
i dont have another SIM & i dont mind upgrading firmware.
Where do i get factory firmware from?

thanks

8

Have you ever upgraded the firmware?
Anyone gave you this version BC95GJBR01A07?
Please take photo of the BC95 , the FAEs can get the hardware version of your BC95G module, and then he can determine which version should be ok.
Please send email to support@quectel,com.

9

Hi Vincent
The ver BC95GJBR01A07 was on the module when i purchased from mikroe.
They also suggested i should perform upgrade.

but no, never done a upgrade before.