Nuvi 37xx clock roll over patch files request

**chibipaw** · 6th September 2023, 06:30 PM

My old 3760 finally gave the ghost after many years of service.
Picked up a 3790 on ebay, everything works well except for what it appears to be he GPS time roll over issue. The system clock is off by one hour due to DST, and thinks it's an 21 2004. Hours and mins in UTC seems to still be correct.
I've did a lot of searching and there seems to be only very little information on about this, but clues does point me to replacing 3 files in the .System/GPS directory.
ARC.BIN
BEE.BIN
mt.nvm
So if anyone has a functional nuvi and is willing to send me a copy of it in an attempt to fix it. I would very much appreciate it. I dont think it matters which device the file is from so long as its a later model nuvi or if its from a Drive series unit.

Also, if there are any other solutions, please let me know.

Thank you.

**Garman_Nuvi** · 7th September 2023, 01:17 AM

Tools>Settings>System>Current Time allows you to change the time manually.
[Only registered and activated users can see links. ]

I'm not sure what having another members complete device files will help ,I would not recommend sharing of those details publicly.
We have to assume you have the latest firmware and have reset the device already.

Spoiler: GE image

Edit: Previously discussed
[Only registered and activated users can see links. ]

**chibipaw** · 7th September 2023, 05:48 AM

Yup, I do have 5.10, and thank you for a copy of that.
Supposedly those 3 files dictates the chipset's clock counters start numbers past the roll over.
If those files are deleted, apparently regenerates ones that are lower version, that does not have the patch installed.

Anyways, this is probably the best summary of what one guy did to resolve the same problem, link below. I've also read similar stories of other people resolving their issues in the same manner by replacing those 3 configuration files.
[Only registered and activated users can see links. ]

Aww looks like the Drive series actually got rid of the .system/GPS directory altogether. It must probably use another type of chipset instead.
Think I will need to find doaner files from an actual Nuvi unit.

**Butters** · 9th September 2023, 01:10 AM

@chibipaw
Here are up-to-date files in a 3790's GPS folder : [Only registered and activated users can see links. ]. Use at your own risk of course.

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