Thread: Transform a Nuvi 37xx in a Nuvi 34xx for dummies

I could've sworn that the reason, in the past, why I went back to the 3790 original firmware (after converting my device to 34xx) is that it was way too inaccurate when using the 34xx firmware.

That's what I thought. I already tried it in two cars and it seems to exhibit the same behavior. I guess it's just the standard speedo config in our country.

NOTE: I just read that thread you've posted and it seems that the OP says that he was also having the same inaccuracy problem AFTER changing to the 34xx firmware for his 3760 device.