Hello guys,
I have a problem with getting my phonenumber with USSD-Code in 4G modem with Quectel EC25 Chip (EC25-EC or EC25-EUX) and I hope you can help me.
First of all some basic informations:
Its a german SIM card (provider: fonic) and I am using it in the Czech Republic, the USSD-Code is *#62#. And I don’t know why, but everytime I get the error code “+CME ERROR: 258”.
When I use the same card in 2G modem with Quectel M26 Chip the USSD-Code works fine without any problems.
I had also problems with other SIM cards (different providers like Lebara or Lycamobile, also from Germany), but I could solve them by using following AT Commad:
Step 1:
AT+CSCS=“GSM”
Step 2:
AT+QURCCFG=“urcport”,“uart1”
Unfortunately it don’t help with fonic card in new modem (EC25 Chip).
4G Modem:
Sending AT query…
AT
OK
Successfull response for AT query…
Enabling echo and verbose mode
ATE1V1
OK
AT+CGMM
EC25
OK
Model Number : EC25
AT+CGMI
Quectel
OK
Manufacturer : Quectel
AT+CSCS=“GSM”
OK
AT+QURCCFG=“urcport”,“uart1” (also tried with “all”,“usbmodem” and “usbat” - same results)
OK
AT+CUSD=1,"*#62#",15
OK
+CME ERROR: 258
AT+COPS?
+COPS: 0,0,“O2 - CZ”,0
OK
AT+CREG?
+CREG: 0,5
OK
Thank you for your time and your help!
Kind regards
Eddy