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  1. #341
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    @kunix
    Maybe i've missed something. HWID 0712 (2009-2010 US) sys.bin is just fw_all.bin only, right? If that alone [w/o boot.bin] is supplied on SD by Garmin, as described in the link below, how the dickens does it get loaded? There must be a boot.bin mustn't there? If it's not on the card, is it on the unit's NV somewhere and invoked somehow? Surely if at sometime the boot.bin needed to be updated it would have been written somewhere on an SD update? Maybe these are 'Village Idiot' questions, if so be kind.
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  3. #342
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    Yes, that sys.bin serves as fw_all.bin, the only difference is that it's loaded by the bootloader from the filesystem.
    boot.bin is not bootloader, it's ramloader, and "boot.bin" is a misnomer. It's only needed for writing data from RGN or GCD to the flash chip. And after that it disappears. It's not saved anywhere on the device.
    I don't think that map update contains GCD file with boot.bin.

  4. #343
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    Quote Originally Posted by kunix View Post
    I took a look at the sys.bin of HondaGW2009-2010 provided by ErMonter. It does support GCD files. It does support voices in regions 0x11 and 0x13. The only problem, we can't create GCD files for it, as we don't have the original boot.bin.
    I think we can try to run a gupdate.gcd temporarily, without flashing it, as decribed in [Only registered and activated users can see links. ]. Gupdate doesn't exist in 2009-2010 but may be it can be read if present. What do you think about?
    Last edited by carlinux; 1st June 2013 at 20:09.

  5. #344
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    We can even run a linux kernel as boot.bin in gupdate.gcd. But it won't start transferring regions from the GCD file to the flash chip as normal boot.bin would do.
    If only the GCD flashing functionality is implemented in sys.bin... I'm checking that.
    UPD: apparently sys.bin can't flash GCD without boot.bin
    Last edited by kunix; 1st June 2013 at 10:29.

  6. #345
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    Quote Originally Posted by kunix View Post
    Yes, that sys.bin serves as fw_all.bin, the only difference is that it's loaded by the bootloader from the filesystem.
    boot.bin is not bootloader, it's ramloader, and "boot.bin" is a misnomer. It's only needed for writing data from RGN or GCD to the flash chip. And after that it disappears. It's not saved anywhere on the device.
    I don't think that map update contains GCD file with boot.bin.
    Yes, i did know that boot.bin is not bootloader ('coz i remember you telling someone [ddabcd277 maybe?] something like this: "OMG, I didn't think anyone understood all that sh*t i wrote about bootloaders and ramloaders ....."). Knowing that doesn't mean understanding it unfortunately.

    Quote Originally Posted by kunix View Post
    We can even run a linux kernel as boot.bin in gupdate.gcd. But it won't start transferring regions from the GCD file to the flash chip as normal boot.bin would do.
    If only the GCD flashing functionality is implemented in sys.bin... I'm checking that.
    UPD: apparently sys.bin can't flash GCD without boot.bin
    Can you 'make' a boot.bin to suit?
    Last edited by Neil; 2nd June 2013 at 02:39.
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  7. #346
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    Quote Originally Posted by Neil View Post
    Can you 'make' a boot.bin to suit?
    No, it's too hard.
    It would be much easier to flash regions 0x11 and 0x13 over USB. Or if USB is not readily available it would still be much easier to add some region flashing code to sys.bin.

  8. #347
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    Just as a matter of interest,
    Do these devices use oem.xml ?
    The difference between stupidity and genius is that genius has its limits.
    Albert Einstein.

  9. #348
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    Quote Originally Posted by dasilvarsa View Post
    Just as a matter of interest,
    Do these devices use oem.xml ?
    No, they don't. They don't even have "XML" string in their firmwares.

  10. #349
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    kunix,
    I need to fully restore a v.4.50 USA. Do you still have the original dump of my unit?
    The flashed Language + V.2.60 has been tested during a trip of 2200 Km without problems, but when running the map without a route the navi freeze.
    For me this is not a real problem but "obviously" someone doesn't want this "imperfection" ad want to roll back to the original.

  11. #350
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    Can you give me the original 4.50 gupdate.gcd? I want to use boot.bin from it.
    Also I've just found that gupdate.gcd from HondaGW2006-2008-HWID265-EU-RELEASE.rar was not built exactly as I wanted.
    It could cause infinite update reboots, as fw_all.bin's version in gupdate.gcd was not equal to the real fw_all.bin's version (2.60).
    Instead it was equal to boot.bin's version (4.60). This is due to my GCD utility's nature. I removed the file and I will reupload it when it's fixed.

 

 
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