Legitimate question, but since everybody seemed to know already I did not think it was required...
Command format: ergn,<rgn #>
That looks like erase region, and a region number. This string can be found in boot.bin. Make a search for this unicode string.
I thought the goal was to erase region 41, not 34. Erasing 34 will keep the same UnitID as it will be coming from region 41.
I would suggest to do those 3 commands at the same time:
write region 34 with offset 0x10-0x1f with FF, keep UnitID intact.
erase region 41
That should wipe clean your NVM and preserve your UnitID.
By mistake in my previous post I typed 34 instead of 41.
I did this :write region 34 with offset 0x10-0x1f with FF, keep UnitID intact. erase region 41. reboot
Still the same. Unitid OK . Unit remains 34xx.
Last edited by voyager56; 23rd November 2011 at 21:31.
What size is region 76? On my nuvi i get error when trying to read 76.