Thread: SD Authentication

No use the Sd card ID and follow this
[Only registered and activated users can see links. ]
instead of saving it as gmapsupp.unl save it as sw.unl

Originally Posted by diegoand

Hello Catymag. How can I get the SD Card ID? I tried using Hardware ID extractor, but the "Real hard drive ID (hardware)" field is blank. See attached screenshot.
Is there another way in which I can get the SD card ID?
Thank you, very much for your help.

Some ways:
1. Find a friend with a Nuvi: [Only registered and activated users can see links. ].
2. Have you got an Android phone? Google 'SD Tools' or get it from Google Play. It will give you the CID in hex and then you convert to decimal:

Code:

Please Login or Register to see the links

3. Got an old Symbian phone running s60 - S^3? Even without a sim card you can load GMXT and get the CID: [Only registered and activated users can see links. ].
4. Got a PDA running Wince6? Try this: [Only registered and activated users can see links. ].

The first method is the easiest of course, but any port in a storm.

Were you game to try what I suggested to you earlier in [Only registered and activated users can see links. ] in the thread 'How to get your sd card id in your garmin device'? i.e.:

Originally Posted by Neil

........... Your satnav is requiring a password to prevent another SD card being used other than the OEM card. I should think the unit sw checks the CID to confirm that it is one that has previously had a specific password entered. Mind you, this is my conjecture, but seems likely.

If you are prepared to take the risk, you could back up the 3 files gmapprom.img and its associated unl & gma, then remove them from your original card and copy a new unlocked map as gmapprom.img. The unit should still recognise the sd card id and the unlocked map will work on both the sd card and therefore the unit. Again, my conjecture, but if that doesn't work you should be able to copy the original map image with its unl and gma files back successfully....