nuvi 55/56/65/66 software summary

nuvi 55/56 software version 4.50
as of July 16, 2015
(28.85 MB)

Change History

Changes made from version 4.40 to 4.50:
• Fixed an issue that could cause traffic events to obscure the navigation map.

Code:

---

http://www8.garmin.com/support/download_details.jsp?id=6779

---

Code:

---

http://download.garmin.com/software/nuvi55_56_450.gcd

---

nuvi 65/66 software version 4.50
as of July 16, 2015
(62.97 MB)

Change History

Changes made from version 4.40 to 4.50:
• Fixed an issue that could cause traffic events to obscure the navigation map.

Code:

---

http://www8.garmin.com/support/download_details.jsp?id=6781

---

Code:

---

http://download.garmin.com/software/nuvi65_66_450.gcd

---

Quote:

---

Originally Posted by catymag [Only registered and activated users can see links. Click Here To Register...]

Unlocked with what?
FW 4.40 accepts NT maps unlocked with latest gimgunlock+mapsigpatch

---

Hello catymag, is there a way to know what software was used to unlock a map?

I ask because I downloaded a Europe map (CN Europe NT 2015.20 by mafozi) and it doesn't work with firmware 4.50 on a Nuvi 55

Can it be re-unlocked with the latest gimgunlock+mapsigpatch? or Do I need the original locked map?

Thanks...

It may have been unlocked with FIU or the older version of gimgunlock without the map sig patch. Run [Only registered and activated users can see links. Click Here To Register...] on it, it won't hurt to unlock it again.

Quote:

---

Originally Posted by gmua [Only registered and activated users can see links. Click Here To Register...]

Hello catymag, is there a way to know what software was used to unlock a map?

I ask because I downloaded a Europe map (CN Europe NT 2015.20 by mafozi) and it doesn't work with firmware 4.50 on a Nuvi 55

Can it be re-unlocked with the latest gimgunlock+mapsigpatch? or Do I need the original locked map?

Thanks...

---

You can run on it gimgunlock+mapsigpatch, no problem, if the map is good. Next time download original locked map and unlock by yourself.
I distrust these modified files. Btw your map is old, latest version is 2016.10

@Neil was faster ;)

Wow! that was fast (you both were fast catymag :smug: ) what a great utility this is, it fixed my Map in just a few seconds.

I've been trying to download a newer map but those zippyshare files are taking a lot to download.

I also distrust these kind of files, but I found this map before I found this great forum.


Thanks Neil and catymag.

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?

Quote:

---

Originally Posted by manpohban [Only registered and activated users can see links. Click Here To Register...]

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...

nuvi 65/66 software version 5.20

as of January 4, 2016

Code:

---

http://www8.garmin.com/support/download_details.jsp?id=6781
http://download.garmin.com/software/B1749000L.GCD

---

(63.65 MB)

Changes made from version 4.50 to 5.20:
◦Added support for the Garmin babyCam™ accessory.
◦Added support for searching along multiple routes in a trip.
◦Improved creating and reviewing trips in Trip Planner.
◦Improved routing behavior in areas where vehicle access is restricted.
◦Improved search performance.
◦Fixed potential issues with reviewing traffic events.
◦Fixed an issue with BC 30 that could occur after restoring default user settings.
◦Improved software stability.

nuvi 55/56 software version 5.20
as of January 4, 2016

Use Garmin Express to install this file.
(29.21 MB)

Changes made from version 4.50 to 5.20:
• Added support for the Garmin babyCam™ accessory.
• Added support for searching along multiple routes in a trip.
• Improved creating and reviewing trips in Trip Planner.
• Improved routing behavior in areas where vehicle access is restricted.
• Improved search performance.
• Fixed potential issues with reviewing traffic events.
• Fixed an issue with BC 30 that could occur after restoring default user settings.
• Improved software stability.

Code:

---

http://www8.garmin.com/support/download_details.jsp?id=6779

---