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ERROR:root:Attach failed again, giving up #123
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I have the same problem. T14s (AMD chipset) with ubuntu 21.04 using "Freedom Mobile" Similar to OP I verified that SIM CARD is working when swapping into my phone. |
You could try:
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I've removed the USB driver and mods as far as I can tell. I've tried from a cold boot: I recall that the very first time I loaded the driver and tried it I got the error described here #122 I've not been able to replicate that. Now, all I get is ERROR:root:Attach failed again, giving up. Another thing I've noticed is that I can't seem to talk to the device on /dev/ttyXMM0, only on /dev/ttyXMM1 or /dev/ttyXMM2. I see output from the device when I first open /dev/ttyXMM0 but it does not respond to commands. Below is the output of open_xdadatachannel.py
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Did you succeed finally? |
This might not necessarily be a driver problem but I'm hoping by posting it here someone who knows more than I can shed some light on the cause of the problem and hopefully help other with the same problem.
First, my setup:
I'm able to compile and load the xmm7360 module.
I'm on a Lenovo P15s which has the Fibrocom L850GL WWAN card
I'm using a Verizon Wireless SIM that I've verified is unlocked with AT+CPIN?
Using APN vzwinternet
AT+CREG? typically returns 3 (denied)
I have inserted the SIM into my phone and verified it works/is activated
I've seen AT+CREG? return 0 in the past, possibly after switching back and forth between my laptop and phone.
The problem:
I don't seem to get very far after running open_xdatachannel.py. The very first time I ran it it produced a lot of output and eventually ended on a message which I unfortunately did not save but something about 'unrecognized character 0x5'
I've not been able to reproduce that. Every single time thereafter, open_xdatachannel.py ends with ERROR:root:Attach failed again, giving up.
I'm not sure what the UtaMsNetAttachReq involves or where I can learn more about it.
I've also tried with the usb-modeswitch driver but ModemManager also fails to bring up the interface.
Any ideas welcome, thanks!
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