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  1. #1
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    Default Garmin Nuvi 265WT boot problems

    Hi Guys!
    Garmin Nuvi 265WT, ID 827, software v6.40 , board v3.
    My Sat-Nav had a boot loop problem - Garmin logo, brief white screen and reboot continuously.
    Could only get Mass storage recognised if I held top left corner of screen.
    Managed to flash to v6.10 - still same problem.
    Next flash v500 cure (found elsewhere on another Forum) and now all I get is white screen for 8 secs. and continual reboot.
    Cannot get into mass storage anymore as screen does not respond to pressure. Does the cure software over-ride the screen pressure points?

    Would like to get it working - any ideas?
    Have left battery disconnected for about 10 hours, still no difference.
    Is Pre-Boot mode via pressing top left corner of screen?

    Need repair tool to see USB again.
    Thanks

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  3. #2
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    Have you tried to boot with ldr?

  4. #3
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    For pre boot mode on 2x5w you must hold ON button to the left.

    Download and unrar this:

    [Only registered and activated users can see links. ]

    Open folder for repair and run updater.exe

    add dot beside usb and put mouse currsor on OK button

    Connect nuvi to PC and hold ON button to the left all the time.

    When updater.exe recognize your nuvi click OK

    When you see on your nuvi screen Loader or Loader loading you can release button

    when process is done you will have mass storage connection

    Now create backup of your nuvi if you dont have it

    Format your nuvi to FAT

    after format add all from your backup to the nuvi (dont add back gmapbmap.img and gmapprom.img for now)

    Flash in pre boot with folder original

    Now your nuvi work and you can add back gmapbmap.img and other .img

  5. #4
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    The problem is that it can't be recognized by updater.exe...Only white screen. Like a torch.

    Check this:
    Code:
    Please Login or Register to see the links
    Code:
    Please Login or Register to see the links

  6. #5
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    This procedure work on nuvi 760 with white screen.
    You dont press screen for pre boot but you hold button for turn on nuvi to the left.

  7. #6
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    Hi ddabcd277,
    What did you mean by ldr boot?

  8. #7
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    hamgray
    Speaking in general, you can copy boot.bin into SD card renaming it to ldr.bin and it will be executed during the next boot process. When executed, ldr.bin runs commands from update.txt file. And some of these commands can rewrite flash regions.
    ddabcd277, lolypop000
    As I remember bootloader is able to load & execute ldr.bin, but I don't know the exact conditions of this. Usually ldr.bin execution is initiated by firmware. So this won't probably help in this case.

  9. #8
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    @ kunix

    Agree with you. It will be a miracle if the nuvi "wake up" from the "coma" by this way. Of course nothing will be lost if he take a try.

    But the big question is what can be done in such cases? Using "the barbaric way" of ripping off the memory and manually programming it as PouchX? IMO it is better to be sold for parts.

    Any other ideas? JTAG? From a long time I am searching to read about this method...
    Last edited by ddabcd277; 3rd April 2012 at 10:36.

  10. #9
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    Hm, I've just surfed a little bit the disassembly of 2x5W's bootloader and I can say that it tries to execute ldr.bin when SD card is mounted.
    So... maybe this ldr.bin trick will work. Someone has to help hamgray with preparing an SD card...

  11. #10
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    "the barbaric way"

 

 
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