Hello Harry,
I checked the manual for this 2 way radio, and I don't think there is anything like "software" in this context.
The firmware has been hardcoded to the hardware itself.
If you could explain your issue in detail, perhaps I can be of some help.
You can refer to this manual if you want: http://www.scribd.com/doc/15685467/Motorola-Xtn-Series-Userguide
If that's not the problem, then let me know. I'll be glad to help you out.
Please rate this solution if it helps you.
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