Thread: Convert 3790/3760/3750 to 3490

Originally Posted by voyager56

Did somebody figure out what the files are mt.nvm, arc.bin, bee.bin. I'm mostly curious about mt.nvm. All these files can be found in folder .System/GPS

I met arc.bin and bee.bin in Nuvi 765 in first time. The folder is Garmin\ExtData\. This files generated by system and have info for working of MTK chipset. I am sure it needs for working of GPSChipsetTypeMHotFixData (006-D1221-00.bin). Any way this files is present with GPSChipsetTypeMHotFixData always and contiguously updates by system. GPSChipsetTypeMHotFixData (006-D1221-00.bin) not changed during working of device and need update from Garmin.com only.
I met mt.nvm in Nuvi 205 MTK in first time in Garmin folder. I thought is message log for MTK chipset by analogy.

But after the expiration of time Nuvi 37xx came. I was searching for GPSChipsetTypeMHotFixData (006-D1221-00.bin) in inventory but no result!? Surprise? Well GPSChipsetTypeMHotFixData integrated in software I came to a conclusion and found fragment of 006-D1221-00.bin in gupdate.gcd. Oh Garmin...