I've got a short instruction when I bought a CID modifiable SD-Card from eBay. Maybe this would be useful for everyone, who would like to modify and update the MAP for their navigation at home (eg: Suzuki, Ford, Nissan, Mazda, etc)You can download lubuntu_16.04_32bit-mmc .iso from here, this is a special edition with patched kernel:
[Please Register or Login to download file] 1 - Samsung Card Standard/Plus/EVO/EVO+/PRO/PRO+ (4GB, 8GB, 16GB, 32G and 64G SD Made in Korea before 2016)
2 - Format card in Windows FAT 32 by Guiformat.exe utility and copy cryptnav and prod_info.txt on card
3 - Boot Laptop from Ubuntu flash. (You can use RUFUS program to make a bootable USB drive for your patched Lubuntu)
4 - Right click on Desktop -> open Terminal (You have to use an old type of laptop, which has internal SD-Card reader on its PCIE bus eg.: Lenovo T530, etc)
5 - Insert the SD in slot. Terminal command "df" and verify the card name.
Somewhere down must occur "mmcblk0" + p + a number.
When you do not see anywhere mmcblk0, you must try different Laptop with on matherboard integrated cardreader.
Now you can read the original CID by command "sudo sdinfo"
8 - change CID by terminal command:
"sudo mmc32 prog_cid /dev/mmcblk0 5d5342303031364712ed3937bc012900"
Writing new CID: 5d5342303031364712ed3937bc012900
Success! Remove and Reinsert SD card to check new CID.
Remove and reinsert SD card and check CID by command "sudo sdinfo" or "sdinfo"
Now will be displaying the new CID 5d5342303031364712ed3937bc012900
The last two characters may be different, does not matter, it's just a checksum.
And a little movie: [Please Register or Login to download file] Link coming soon.