Dear Quectel Technical Support Team,
I am currently working with the Quectel EC200U-EU module and would like to implement Dual SIM Dual Standby (DSDS) functionality in my project.
My current firmware version is:
EC200UEUAAR03A02M08_01.001.01.001
I have tested the following AT commands:
-
AT+QDSTYPE?→+CME ERROR -
AT+QDSTYPE=?→+CME ERROR -
AT+QDSIMCFG="dsss"→+QDSIMCFG: "dsss",0
I understand that DSDS functionality may require a specific firmware build.
My main request is to obtain a DSDS-enabled firmware specifically for the EC200U-EU module, rather than just the latest standard firmware.
Could you please confirm the following?
-
Does the EC200U-EU hardware support DSDS functionality?
-
Is there a firmware version specifically designed to support DSDS on the EC200U-EU?
-
If available, could you please provide the DSDS-enabled firmware package?
-
Could you also provide the official firmware upgrade tool and upgrade instructions?
-
Are there any specific hardware requirements, pin configurations, or hardware revisions required to enable DSDS?
Please note that my current custom PCB only implements SIM1. I am planning a future PCB revision with dual-SIM hardware support, so I would also appreciate the recommended hardware design requirements for DSDS.
I would appreciate your guidance and any relevant documentation.
Thank you for your support.
Best regards