Thread: Help with nuvi 2597LMT and using new maps

Originally Posted by Cnfhbr

@crow0

Check the checksum of the file gmapsupp.img on your microSD.

For the original locked map Auto Drive Hellas Greece v3.30T (Latin NT, FID 821):

Code:

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For the original locked map Auto Drive Hellas Greece v3.30T (Greek NT, FID 822):

Code:

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the checksum is like the one you wrote
For the original locked map Auto Drive Hellas Greece v3.30T (Greek NT, FID 822):
[CODE]CRC32: 20A17B68
MD5: FD11A7A90C509D0857F60C93732B58D6
SHA-1: E7E85E5064C5CB278F9E4FC0E31949FC50E8DF8F

the only thing I can think of is that when I updated from Garmin site it locked the ability to read unlocked maps maybe I cant think of sth else!!

Originally Posted by crow0

the only thing I can think of is that when I updated from Garmin site it locked the ability to read unlocked maps maybe I cant think of sth else!!

In your case, NT maps cannot be altered (ie you cannot unlock it by any unlocker), but unaltered signed NT maps (with FID < 2200) should work using UNL file created by means of JM-KG-ChecksumFix.

Yep that should do it Autodrive is on Thank you all!