HL7810 CME ERROR: 921 on AT+KTCPCNX=1

[jyijyi]

does this help?

Unable to get a signal using HL7800 dev board

AT+KSRAT=1,1 solved the CSQ problem but I still have issues later down the sequence. I am now getting and CME ERROR 921 after the AT+KCNXUP command which I have not had before. My full sequence is as follows AT OK AT+CSQ +CSQ: 7,99 OK AT+CEREG? +CEREG: 0,5 OK AT+KCNXCFG=1,“GPRS”,“dataconnect.m2m” OK AT+CGATT=1 OK AT+KCNXUP=1 +CME ERROR: 921 As for firmware, does this give you the information ? ati9 HL7810.5.5.14.0-23.12.0.FreeRTOS.w49 HL78xx.5.5.14.0.RK_03_02_00_00_40522_001.…

Is there improvement on latest FW?
https://source.sierrawireless.com/resources/airprime/software/hl781x-and-hl7845-firmware/hl781x-and-hl7845-firmware-5,-d-,4,-d-,12,-d-,1/#sthash.fwWxnRTe.daeFQt3b.dpbs