EM160R-GL on linux in ECM mode does not work

Im using openwrt btw. Is quectel-cm a package for openwrt? How do i get it?

If you have the source code of OpenWrt, you can compile the quectel-CM and run the quectel-CM on the OpenWrt.

q_drivers/Quectel_QConnectManager_Linux_V1.6.7 at master · QuectelWB/q_drivers (github.com)

i managed to fix the problem by upgrading firmware to EM160RGLAUR02A12M4GA. QMI mode is now working again

how do i know that i am on 4x4 mimo because when i check with AT+QRSRP only two antennas give values even if i initiate download

Ive also such question … trying to understand if 4x4 works or not … but it might switch down to 2x2 if there is no heavy download/upload at the moment … I suppose

If you use same command on rm520n all four will activate when you do pingtest on same at command

Have no idea then … here what I have

AT+QCFG="lte4x4mimo/disable"
+QCFG: "lte4x4mimo/disable",0

AT+QRSRP?
+QRSRP: -109,-116,-140,-140

When you see value -140 it means the port is not working or has no load as far as i know.

Here what Ive after Ive switched traffic to lte interface

AT+QRSRP?
+QRSRP: -115,-116,-118,-111

Good your modem is working all four antennas. Wonder why mine did not

Not all towers or bands support 4x4 MIMO.