Why won't my Combox upgrade firmware on some devices?
There are slight differences between file names for older legacy XW models and the newer XW legacy models
or the XW+NA models.
Older firmware file names may have the model # followed by ".01", for example one revision of older SCP firmware
would be (865-1050.01_05_00.BN0001.xf0). For the Combox to recognize the firmware, it will be necessary to rename the file
to (865-1050-01_05_00.BN0001). In other words, just change the "dot" to a "dash".