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  1. #21
    Garmin/GPS Systems GMod. Nuvi 2460 reboot loop - tried all suggested fixes
    Nuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixes
    Neil's Avatar
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    Quote Originally Posted by catymag View Post
    ....
    But better not to expain more here.
    ......
    Quote Originally Posted by dasilvarsa View Post
    ........
    I would appreciate more info on this file.
    Not in here Mate, sorry.

    Quote Originally Posted by gpscurious View Post
    ............
    Also, it seems my question regarding clearing NV on a non-booting system has gone unanswered. Should I start a new thread regarding it?

    In any case, I believe my initial request can be considered "SOLVED" for the purposes of the thread title.
    As far as I know it's not possible to clear NV if the system won't boot, but maybe kunix, Caty or Loly knows a way using a command from the media card. I get a bit paranoid when the term clear and erase are used interchangeably regarding non-volatile memory btw. It can create the impression that they are one and the same, but it depends on context what's meant. The usual interpretation of 'clear nonvol' is in the sense of that which is done in the hidden menu accessible via the speedo, and that's relatively harmless, just a comprehensive hard reset if you like. Erasing rgn41 of NV is a big deal as you found out, particularly if there is no good or repairable backup available. It's a method of last resort generally.

    Agreed your original problem is solved, thread marked accordingly.
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  3. #22
    Navigation software Moderator kunix's Avatar
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    Currently, if the system doesn't boot completely, we can only erase/backup NV using SD card (and boot.bin patch sometimes).
    It would be nice to recover only the most important NV records and erase the others. But it can't be done currently, as NV format is unknown.

    Quote Originally Posted by catymag View Post
    Kunix sent me a program to restore them but failed. Probably it works with 1XXX series.
    For 37xx/34xx you would need a service USB cable... It's not hard to make it...

  4. #23
    Navigation software expert Nuvi 2460 reboot loop - tried all suggested fixes
    Nuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixes
    lolypop000's Avatar
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    Quote Originally Posted by kunix View Post
    For 37xx/34xx you would need a service USB cable... It's not hard to make it...
    It's not hard if you know how to do it, but we don't know how to do it.
    If you wish, you can [Only registered and activated users can see links. ]

  5. #24
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    Quote Originally Posted by Neil View Post
    I get a bit paranoid when the term clear and erase are used interchangeably regarding non-volatile memory btw. It can create the impression that they are one and the same, but it depends on context what's meant. The usual interpretation of 'clear nonvol' is in the sense of that which is done in the hidden menu accessible via the speedo, and that's relatively harmless, just a comprehensive hard reset if you like. Erasing rgn41 of NV is a big deal as you found out, particularly if there is no good or repairable backup available. It's a method of last resort generally.
    So true, Neil! That's precisely the impression I got from reading the related threads, and the reason I so blithely went ahead with erasing my rgn41. The good news is that with kunix's assistance, my system seems to be fully functional and that, even in hindsight, erasing the NV does seem to be the only solution that would have resolved my problem.
    Realizing that what's commonly referred to as "clearing" and "erasing" are indeed very different in their effects is precisely what led me to ask of a way to "clear" a non-bootable NV without resorting to erasing it.

    Perhaps a thread with a "menu" of Nuvi issue resolution steps would be of help? It could list various steps be taken in the even of a problem, linking to the relevant threads for details. The steps could be listed along with their potential side-effects, arranged in the order of said side-effects' increasing severity. So, for instance:

    1) BACK UP your NV / relevant file-system files [link to relevant thread]
    2) Clear user data (all tracks, etc. will be lost. Can be restored from backup taken in step 1) [link to relevant thread]
    3) Clear NV (side-effects) [link to relevant thread]
    4) Delete GUpdate.GCD[link to relevant thread]
    ...
    7) Erase NV (side-effects) [link to relevant thread]
    8) Contact caty or kunix via PM [link to relevant thread]

    Then responding to members' issues would consist mainly of referring them to the "menu" thread along with suggesting the items relevant to their problem. So for instance, for a non-booting 24xx, try 1&2, then 4, etc.
    I realize getting a detailed response specifically tailored to one's problem greatly enhances readability for the asking member (particularly if she's new to online forums), but I think the "menu" approach would go a long way toward maintaining a cohesive troubleshooting framework. It would minimize duplication of effort and would greatly condense the sources of relevant information, facilitating searches. So for instance, if user MyGPSIsDead hits a snag with Step 2, he can post to the relevant thread and potentially benefit user GPSSOS who also needs to perform Step 2, despite the fact that user GPSSOS is experiencing entirely different symptoms and would never have found MyGPSIsDead's original thread.

    My apologies if my proposal seems presumptuous, as I'm sure the veterans of this forum have far more experience (and success) with assisting members with their issues.

  6. #25
    Navigation software Moderator kunix's Avatar
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    gpscurious
    I think, your proposal is good. I was thinking about something similar. Currently the forum has many interesting posts, but they are barely organized.
    For example, "Running programs from SD on nuvi" thread's first post is not updated with the latest advances, like 1)"boot.bin=ldr.bin" (even this!) 2) running ldr.bin by flashing RGN 3) if_error (I'm sorry for listing mainly my discoveries, but I couldn't remember quickly anything else).

    Also there are no simple HOWTO for applying most powerful curing methods (without messing with less invasive ones), like GarminCure3 + ldr.bin inside RGN and "ergn,41".
    That would cure almost any curable device. But it's not highlighted anywhere.

  7. #26
    Important User Nuvi 2460 reboot loop - tried all suggested fixes
    Nuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixesNuvi 2460 reboot loop - tried all suggested fixes
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    Please kunix post a new thread could resume all possible cures and add your discoveries
    @loly
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    l9ebnsm
    You have to navigate to get to the good.

    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600

  8. #27
    Navigation software Moderator kunix's Avatar
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    Dear Caty, you probably know, how lazy I am....

  9. #28
    Navigation software expert Nuvi 2460 reboot loop - tried all suggested fixes
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    Mini usb and micro usb have the same tutorial for create service cable ( 50khom resistor on pin 4 and 5 ) ?
    If you wish, you can [Only registered and activated users can see links. ]

  10. #29
    Navigation software Moderator kunix's Avatar
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    I was always using ~45 kohm resistor.

  11. #30
    GPSPower Helper Nuvi 2460 reboot loop - tried all suggested fixes
    Nuvi 2460 reboot loop - tried all suggested fixes
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    Once you have made service cable, How do you use it ?
    is it Hyper Terminal or is it something else ?
    The difference between stupidity and genius is that genius has its limits.
    Albert Einstein.

 

 

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