Hi !
I have an issue with the BG96 used in this Dev. Kit from ST Microelectronics : https://www.st.com/en/evaluation-tools/p-l496g-cell02.html
Thanks to QNavigator, I’ve managed to send AT Commands to my module (basic ones such as ATI, AT+GSN, AT+CMEE=2 …). They all respond quickly and deliver coherent results.
I therefore consider that I’m able to communication with my module.
I encounter an issue whenever I run the « Automatic initialization » in QNavigator.
The script stops at the AT+CPIN? command. Here’s what is returned.
After an investigation, it seems that there’s never any power delivered by the USIM_VDD pin, or any signal delivered by either USIM_ pins (CLK,DATA,RST).
I’ve upgraded my bg96’s firwmare recently, and on my motherboard, I’ve run different example scripts.
I’ve tried to force VDD_SIM of my card connector to 3.3V, but no signal and still the same error whenever I try to type an AT Command related to the SIM usage.
I think that this part of my module is dead, but I’m writing this message just in case someone as encountered this issue, and did something that I didn’t do.
Thanks a lot for reading,
Regards,
Thomas.
edit : typo + img