CMUX Problem EC200U-EU

Technical Subjects Upgrade/Debug
1

hello support
i am using Quectel EC200U-EU (EC200UEUAA-N05-SGNSA) and Revision: EC200UEUAAR02A06M08.
after entering to CMUX mode, Quectel module dosen’t respond to long length messages that is sent to it (for example 300 bytes data containing AT commands is OK, but 800 bytes data containing AT commands is NOT OK).
I think if i upgrade the firmware it’ll be solved. can you send me last firmware and tools please? javidtaherisrc@gmail.com

2

Have you tried increasing this value → AT+CMUX=0,0,5,2048,20,3,30,10
I’m working with cmux and it work properly.

1 Like
3

thank for responding.
yes, I am increasing that value and here what i send: “AT+CMUX=0,0,5,2048,20,3,30,10,2”.
is your firmware version as same as mine (EC200UEUAAR02A06M08) ?