Thread: nuvi 55/56/65/66 software summary

Originally Posted by manpohban

Hi, i'm downgrade my nuvi 55 LMT 4.50 > 3.20 and now works with unlocked map CN Europe 2015.40 NT, but still does not work with unlocked CN Europe 2016.10 NT. How do I fix this?

Unlocked NT maps works fine with 4.50 firmware. You just need to use gimgunlock for newer device.

Thank you! My mistake was that I used not the right gimgunlock...