SIM300 AT CENG outputs a lot of question marks

[mick_t]

I was trying AT+CENG on the sim300 and it looks like AT+CENG=2,1 outputs with a lot of question marks in it. I am using ZOC/Pro terminal. Is it some issue with the board? Or is it some inability with the terminals to display characters correctly? I have tried changing charset to UTF, GSM with same results.


+CENG: 0,"0545,47,7,???,??,??,????,??,??"
+CENG: 1,"0547,41,63,4377"
+CENG: 2,"0546,35,??,????"
+CENG: 3,"0544,33,??,????"
+CENG: 4,"0540,28,20,0e6f"
+CENG: 5,"0548,25,??,????"
+CENG: 6,"0538,22,??,????"

What is the meaning the question marks? Any help in figuring this out will be greatly appreciated.

 

[kunal123]

hi
same error i got when i execute AT+CENG=2 at command, please help me
+CENG: 0,"0854,24,0,???,??,??,????,??,??"
+CENG: 1,"0842,18,38"
+CENG: 2,"0840,16,50"
+CENG: 3,"0845,11,38"
+CENG: 4,"0847,09,22"
+CENG: 5,"0855,08,??"
+CENG: 6,"0853,07,??"

+CENG: 0,"0854,24,0,???,??,??,????,??,??"
+CENG: 1,"0842,17,38"
+CENG: 2,"0840,17,50"
+CENG: 3,"0845,10,38"
+CENG: 4,"0855,08,??"
+CENG: 5,"0853,08,??"
+CENG: 6,"0847,08,22"

+CENG: 0,"0854,24,0,???,??,??,????,??,??"
+CENG: 1,"0842,18,38"
+CENG: 2,"0840,17,50"
+CENG: 3,"0845,10,38"
+CENG: 4,"0855,09,??"
+CENG: 5,"0853,08,??"
+CENG: 6,"0847,08,22"