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Reply With QuoteNo, region 13 is not encrypted.Originally Posted by Butters
Spoiler: Approximate structure of region 13:
Spoiler: attached
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30th October 2023, 12:30 PM #291Important User
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Likely your suspicion is valid. Originally Posted by VadimK
Is rgn13 encrypted like the NV region of modern automotive devices and did you need to de-crypt to see UID etc.?It, like regions 41 and 154 before, contains UnitId and references to maps installed in the device.
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30th October 2023, 04:06 PM #292Member
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22nd December 2023, 10:37 PM #293Junior Member
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Garmin Nuvi 2598 (HWID 1582) V. 4.8
Hi
I need help creating Update.txt
Garmin Nuvi 2598 (HWID 1582) (V.4.8)
When installing using SD (Garmin/GUPDATE.GCD)
installs and writes that update V.4.8 is installed
(at the same time I install V.5.5)
I installed LOGO using SD (Original and Custom), everything is OK
(The PC does not see the navigator)Last edited by Boki; 23rd December 2023 at 02:45 PM. Reason: removed unnecessary quote, code correction, approved
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26th December 2023, 11:53 AM #294Member +
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Hi!
Is there way to backup regions for Alpha 300i?
How to extract Ldr.bin file from software GUPDATE.GSP file?
HWID is 4335 for K version.Last edited by miroslavbl; 26th December 2023 at 12:00 PM.
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26th December 2023, 06:44 PM #295Junior Member
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27th December 2023, 08:34 AM #296Member +
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@IZK
Ldr.bin from GSP file, not from GCD.
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21st April 2025, 03:49 PM #297Member
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Hello.
Is it possible to change ESN and in which region can it be located?
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22nd April 2025, 01:40 AM #298Garmin/GPS Systems GMod.
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@Royalist
Short answer ... maybe, but not as far as i know.
Long answer: Garmin calls it Unit ID (UID) and like a smartphone's ESN it's permanently written to the device at manufacture. Garmin's OS is quite opaque to us however the UID is plainly written in the device's GarminDevice.xml file. The UID can be easily changed in it in the same way that any plain XML can be amended, but then the device will update the XML on the next boot cycle and will write back the original UID. It's generally accepted that the XML is written from encrypted details held in the device's non-volatile memory region (usually region 41 or 154). We can decrypt and alter the nonvol information... however AFAIK it's not publicly known how to then, successfully permanently, write back altered and re-encrypted data to the region. Many of Garmin's regions are as opaque as to specific purpose. Even if we completely erase the nonvol memory, some data is automatically reconstructed properly when the device is rebooted. Therefore, it's reasonable to assume that essential data like the UID along with registration codes etc. are permanently held elsewhere on the device as well.'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
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