I posted this question before and nobody had an answer.
Maybe Now with more experience somebody Knows the Answer.

Previously Posted
I was browsing the boot.bin of nuvi 1xxx 5.80 and I found this command near all the other commands.
I think that it's part of the command set discussed in this topic.

refresh,<factory|start|stop>

Does anyone know what this command does ?

Refresh,Factory could possibly be a powerful command ?
I'm just too chicken to try it.

Reply by PM is also OK.