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

Hello guys,

I'm trying to copy a Bluechart g2 vision map from the original sd card to another but i would like to keep it locked as is in the original. I know that the map is locked to the psn part of the cid of the sd card. Using an android app named SD tools, i can observe the following information about the sd card using my phone:

cid: 1b 53 4d 30 30 30 30 30 10 00 bd 8e e7 00 b1 2c
Serial: 0x00bd8ee7
date:01/2011
.......

now my query is if i use the serial observed as is and converted to decimal i get 12422887, which is an 8digit number instead of 10 is correct or:

if i reverse the serial to e7 8e bd 00 and then convert it to decimal, i get 3884891392, which looks fine.

As my GPSMAP421s drowned, i cannot test if the 3884891392 is the right number to use in the jetmouse generator.

Is there any other way to test if I have correctly unlocked my map?
I tried the homeport but it shows the detailed map without a sw.unl file in the sd card at all.

Thanks for your time guys

edit:
I would be grateful If somebody has a locked sd and an android phone to compare the the reversed-converted-to-decimal Serial which the "SD tools" app gives in the phone with the one his garmin device gives