EC200U DSDS or DSSS not working

IoT Modules LTE Standard Module
1

I can’t enable DSSS or DSDS mode on EC200UEU

ATI

Quectel
EC200U
Revision: EC200UEUAAR02A07M08

OK
AT+QDSIMCFG="dsss"

+QDSIMCFG: "dsss",1

OK
AT+QDSIM?

+QDSIM: 0

OK
AT+QDSIM=1

+CME ERROR: 4

Is it related to Firmware, or Hardware?

2

I have sent the latest firmware version to your email, please try it

3

It works. thank you.
There is something new I noticed in Internal GNSS commands.


+QGPSCFG: "outport",("none","uart1","uart2","usbat","usbmodem","usbnmea")
+QGPSCFG: "nmeasrc",(0,1)
+QGPSCFG: "gpsnmeatype",(0-31)
+QGPSCFG: "glonassnmeatype",(0,1)
+QGPSCFG: "galileonmeatype",(0,1)
+QGPSCFG: "beidounmeatype",(0-31)
+QGPSCFG: "gnssnmeatype",(0-15)
+QGPSCFG: "gnssconfig",(0,3-7)
+QGPSCFG: "autogps",(0,1)
+QGPSCFG: "apflash",(0,1)
+QGPSCFG: "beidounmeaformat",(0-2)
+QGPSCFG: "dyn/thd",(0-300)

OK

I couldn’t find any information on what the last option is. I mean the “dyn/thd”.
Can you send me the updated version of “EC200U GNSS Application Note”?

4

I think dyn/thd indicates third party dynamic support, and there is no reference for any explanation at this time