Thread: How To Get Your SD Card ID in Your Garmin Device

Everyone can make errors. I appreciate that you verified your solution and reported back. That's not so common

Dear Ballebar
Thank you for your help
I have another problem: I have a 4Gb MicroSD card plugged into my Garmin, and by using the ReadCID.exe program, I managed to have this report:

\\.\PhysicalDrive3 G:\
--------------------
Raw CID Bytes: 94-00-73-A2-7D-7D-10-30-30-30-30-30-4D-53-1B-00
--------------------
Manufacturer ID: 1b
OEM ID: SM
Product Name: 00000
Product Revision: 1.0
Product Serial Number: 7d7da273
Manufacture Date: 4/2009

Now it is clear to me the Little-endian conversion, etc, but in my case I have 16 bytes (in your example there weren't 16 bytes), and I think I must take 4 of them. Which of them shall I take? The rightmost? Or am I completely on the wrong road?
Thank you in advance
Danilone

@Danilone19

The earlier example was just for Garmin Mobile PC and the calculation of "Software ID" from "Hardware ID".

Using ReadCID.exe from "jo0ls' .Net stuff" gives you the complete CID (128 bit / 16 bytes) and also the 32 bit PSN part. The PSN part should already have been calculated to decimal form by ReadCID.exe.

Your example data should be parsed with calculations for PSN bit fields [55:24]. Making [55:24] to count 16-bit atomic increment wise from 24 to 55 by using little-endian conversion.
Raw CID Bytes: 94-00-73-A2-7D-7D-10-30-30-30-30-30-4D-53-1B-00
Product Serial Number: 7d7da273 = 2105385587 in decimal form.

Code:

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@Ballebar

Thank you very much
Grazie
Danilone

Hi i am new here. I am looking for a software to read the sd card id.

I tried readcid.exe which i donwloaded from this forum but the software is not working.

Please can anybody give me a new link

Thanks

Hardware_IDExtractor

Use this link, find file Card_ID.rar, unrar, copy to SDCard, then execute it in WinCE and see txt how to convert it to valid CID number
I tried it and it works fine. This is only one application on internet I found after weeks of searching functional CID reader :o)
[Only registered and activated users can see links. ]

On my Nuvi 760T I pressed battery indicator and the trick worked.

Thanks catymag!

Apologies for resurrecting the post, but is there now a consensus to which software / programs will generate the correct CID?

Yes I am well aware that using a nuvi is the most reliable method, I'm after that would work on either a eeepc 2g (not sure if sd reader is usb bus connected) or a pocket pc ipaq or similar.

Cheers