hopefully someone can point me to any information.
On an embedded linux device we are using the 7455 module. When inserting an AT&T sim we are able to connent to the network without a problem.
When inserting the Verizon sim, in the same device, the sim is not detected.
We tried also the Carrier Specific firmware versions of the module. But no luck.
I have the impression something basic is wrong, any suggestion very welcome.