I have a Sierra EM7455 Dell branded WWAN modem which I successfully rebranded to Lenovo.
It was working fine for more than 6 months without any issues. It is running on the latest Sierra generic firmware. From last week, the device has been disconnecting (not sure if it being reset) at random intervals. Is it dying? Can it reset if the signal strength is too low or if it is getting hot? I get only 3 to 4 signal bars where as in my phone I have full bars (same network operator).
Please advice how to troubleshoot this problem? I can share the output of your commands from both Windows/Linux OS’s if required.
Thanks for that info. Where can I read up more about this Qualcomm stack crash? So you say it is a software/firmware issue rather than a hardware issue?