[Sean Roozen]

There is only an error response from AT+QCFG, and minicom isn’t responding to my commands either, I ended up just using atcom to test things.  We can setup an ssh link sometime if you want to live troubleshoot this device with me.

[Sean Roozen]

1. There is indeed a blue light illuminated.
2. I have setup a brand new RPi 4
3. All USB ports result in the same reponse, it detects the device, but the modem isn’t showing the expected result
4. Attempted a new, short, cable.  Same results.

pi@raspberrypi:~ $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@raspberrypi:~ $ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 4: Dev 4, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 4, If 1, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 4, If 2, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 4, If 3, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 4, If 4, Class=Communications, Driver=cdc_ether, 480M
|__ Port 4: Dev 4, If 5, Class=CDC Data, Driver=cdc_ether, 480M

[Sean Roozen]

I under stand that double dash.  This forum auto formats what I post.

It looks like Macho got his working so I did a new image for the pi and …
…No such luck.

I can’t detect a qmi device.

pi@sixfabpi:~ $ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 3, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 3, If 1, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 3, If 2, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 3, If 3, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 3: Dev 3, If 4, Class=Communications, Driver=cdc_ether, 480M
|__ Port 3: Dev 3, If 5, Class=CDC Data, Driver=cdc_ether, 480M

So it looks like the qmi device isn’t showing and I can’t do anything with the qmi commands.  I am scouring the internet, hopefully I can resolve.  I may try to get a new Pi and see if that is a solution.

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