On all new device don't work.
Dosn't work with which map? Unicode maps like CN NTU are not unlockable for new devices.
GPS-Devices: serveral Garmin, Samsung Galaxy, Audi MMI
If you click on link in Caty post you will have answer.
This method not work on my device (nuvi 65) =(
................. maybe reading all the last page of this thread, you would have found the solution........
starting post has been updated with new info too
Hello Caty I i was reading the whole page but i didn't find any answer i don't know if i missed something or not
but i wanted to give you a detailed information about what devices i tried and what type of map
First, i downloaded the gimgunlock up to v.0.03+MapSigPatch on windows 7 64bit, extracted the file and drag the following maps to the gmunlock
Middle East & North Africa 2015.10 NT (it doesn't come with NTU)
Europe 2015.30 NTU
I copied them to SD Card named Garmin inside the Folder Garmin in two different SD cards each map in single sd
i tried them on the following devices
Nuvi 55, Nuvi 65, Nuvi 2589LMT, Nuvi 2559LMT,
None of the devices worked the message was (Cannot Unlock Maps!)
Hopefully this will help you guys
i only want to know if there is a soloution in the future or no
In protected new firmware you get "Cannot authenticate map" message.
Cannot unlock NTU maps in new protected devices.
Gimgunlock v.0.03+MapSigPatch not working with all new devices 2xx9.
Your message means map is not unlocked , something wrong, may be you have old .gma or .unl in device
sent with my phone
We already tell you that you can't unlock NO new device.