BC92 ALWAYS SENDING ERROR:+CME ERROR: invalid command line

BC92 MDULE ALWAYS SENDING THE +CME ERROR: invalid command line
I TRIED TO RESTART ALSO SAME THING HAPPEN

I recommend using QCOM for debugging
QCOM_V1.6.zip (715.5 KB)

if i switch on the module module always sending the +CME ERROR: invalid command line (even i not sending any at comment). maybe FW update solve the problem ?

Have you embedded modules into your development kit (board) yet?

no i am done soldering with dot board.

If you are only doing simple debugging, I suggest you weld the corresponding pins of the module as shown below

my problem was solved . the problem was soldering flex. pre heating the board solved the problem.

  1. can you send latest firmware for BC92 ?
    2)can you send MQTT APPLICATION NOTE ?

Quectel_BC66&BC66-NA_MQTT_Application_Note_V2.0.pdf (3.7 MB)
BC92RBR01A06.zip

thank you for your reply