I bought a used Yuma2 Trimble Tablet with Windows 7.
At the moment the device is in Poland - Europe.
I made an update to Windows 7 v.1.007.
The tablet has a device Sierra Wireless MC8355, FCC ID: S9e-Y2C3; IC: 5817-Y2C3.
Program - AirCard Watcher.
When I want to get the call by pressing the “on the radio”, it shows the message: “Failed attempt to turn on the radio.”
When I check the software and drivers update, the system will give you the information that the drivers are the newest.
Can you share the screenshot of your air card watcher?
Also which watcher and driver version are you using?