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  1. #181
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    One more dumper for test. Can you please send me gupdate.gcd after testing?
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  3. #182
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    [Only registered and activated users can see links. ] you can find dumper-0.18 after it has been flashed. It takes 3 sec.

  4. #183
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    Can you also test this one?
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  5. #184
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    [Only registered and activated users can see links. ] is the new one. I must go now. Bye.

  6. #185
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    kunix
    when you say flashed do you mean written to the gl1800 nav ? Also how are you getting the dump after flashing ?

    I have other reasons for playing with this and would like to learn all I can about it.

    If I can help please let me know but also please be patient with me. I haven't done any of this in many many years.

  7. #186
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    jinxxxxxx
    I don't know what is gl1800 nav Please explain me
    When I say "GCD file is flashed" I understand the following process:
    1) GCD file is copied to some storage which the Garmin device can access (CF card, SD card, internal flash drive)
    2) Somehow (details differ among different devices) boot.bin from the GCD file with matching HWID is executed on the device
    3) boot.bin reads GCD file sections and writes them to the device's flash chip.

    In this particular case boot.bin is patched and instead of reading GCD file sections it executes my code.

    carlinux
    I will prepare something for testing, can you wait a little bit?

  8. #187
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    carlinux
    Some new tests. Now I want to know if it's possible to change data of files other than gupdate.gcd (looks like this boot.bin can't extend files, it can only change bytes that already exist). I want you to copy new.bin or exst.bin to the root of the CF card and then flash the corresponding gupdate.gcd, and then send the .bin file to me.
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  9. #188
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    message deleted by myself
    Last edited by carlinux; 7th May 2013 at 20:40. Reason: wrong msg

  10. #189
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    What bin file did it create?
    Oh, those bin files were not changed

  11. #190
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    May be I misunderstood your request? In the second try I didn't use any file of dumper-0.20. Only the #21

 

 
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