"CME ERROR: 10" with sim present

IoT Modules HL78
1

Hi,

We are in production with a lot of products on the field (our commands and hardware are working on multiple products).
I have few of them which are returning “+CME ERROR: 10” (SIM not inserted) error after few time of use.

The one I am currently investigating have such result:

  • at+ksimdet=0 // Suppress SIM detection to have access to GPIO3
  • at+kgpiocfg? // Read GPIOs port configuration (all is IN / pull_down)
  • at+kgpio=3,2 // Read GPIO3 state → it is correct: 1 when card is present, 0 if reset to GND
  • at+ksimdet=1 // Go back to sim detection
  • at+ksimsel=4 // Read sim presence (return: +ksimsel: 4,1,1 // which tell that external SIM 1 is here)
  • at+ksimsel? // Read Sim selection configuration (return +ksimsel: 0,1 // which tell that we use SIM 1 by default)
  • at+CPIN? // Generate the “+CME ERROR: 10”

=> can you help me to understand why I have a “SIM not inserted” error while the sim detection is correctly provided ?

Thanks in advance for your help

AT+CGMM
HL7800
OK

AT+CGMR
HL7800.4.6.8.0
OK

AT+HWREV
+HWREV: 1.0
OK
2

does the SIM work in other OK HL78 module?

3

To bypass sim holder troubles, I have soldered the current SIM.

But previously I had check multiple SIM cards on this product including SIM that was working on other products, and I always had the same CME ERROR with this specific modem, even if the sim was working elsewhere.

4

if you have checked those setting for SIM card detection with the OK module, then this is a faulty module to read SIM card.
You need to do RMA on this faulty module.

5

Is there a link to the RMA procedure ?
Thanks in advance.

6

did you contact distributor on this?

7

Not yet. I will do it.
Thanks for your answers.