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[Only registered and activated users can see links. ] Password for my files: gpspower.net
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Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
OK, I'm trying to determine exactly what's going on here. It's probably 1 of a couple of things.
* It could be that the file is signed, and it's checked by the firmware in the head unit. If this is the case, we're dead unless someone has a spare headunit they don't mind loaning to me.
* It could be that the application CRCs itself. If THAT'S the case, then we have a possibility. (I might find where this is done, and disable it).
So, to help me determine which of those is the case, I have prepared a test file. The steps for this are the same as they were for the hack above. Slap this on the card, and see what it says.
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(There's lots of slack space at the end of the file. I changed 1 byte of that. If the code checks itself, this should be fine. If the headunit is checking it, it'll still fail.)
(Just in case anyone is curious, the disassembly of this .dll is 9,544,014 lines long. There's lots of room for stuff to hide.
Last edited by FrankRizzo; 10th August 2015 at 03:56 AM.
I think when garmin creating these SD Cards, They are reading CID of SD card and writing somewhere in the files. May be it is encrypted.
Than One SD card inserted in the Audio CD 20, It should compare CID of the SD card and from the file where it is hidden.
So you need to know the CID of the SD card which its files shared here so you can search in the files. If you can find the place, It is possible to read CID of other SD cards with using this tool
And Possibly everybody can use their own CID of SD cards and write in the place.Code:Please Login or Register to see the links
What do you think friends
If you discuss this previously and if this is a duplication I am sorry
Last edited by Neil; 11th August 2015 at 08:53 PM. Reason: Coded link [please code all outside links as per Rules] ;)
The most reliable way I know of is to use a device capable of reading the CID of the media card, most Garmin GPSs and [Only registered and activated users can see links. ] can do it as can other types of device. Some more info in [Only registered and activated users can see links. ] under SD&Sd id?. Cloning cards is another [unhappy] story.I didnít contact Nexcopy Incorporated for pricing of the equipment, but doing a quick search for the equipment shows me a price of about $1k for the smallest 20 target system and $3k for the largest, 60 target system.
With all this said, there is still no clear-cut method to read CID numbers off SD cards for the home-user, but maybe this article will at least explain why you havenít found a good solution as of yet.
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Neil, you CAN read the CID evidently.Now for the BAD news. The error message that smc got above doesn't appear in the code. That tells ME, that the integrity of the .dll is checked by the headunit.Code:Please Login or Register to see the links
Something I just noticed. In the file GarminDevice.xml, near the end, you see this:
So, if you want to test this. Use the tool above, read your CID, and place it in the that file, and see what it does!