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  1. #11
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    lolypop000, I predict that ldr.bin won't be loaded from SD card, coz fw_all.bin doesn't start.

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  3. #12
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    He bricked nuvi with wrong ldr.
    I add in pack ldr.bin from nuvi 14xx in both folder 0827 and 0972, maybe he can repair nuvi in the same way that he bricked it.
    If you wish, you can [Only registered and activated users can see links. ]

  4. #13
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    maybe it will work, let's see...

  5. #14
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    No luck yet. Here's what I did:

    1. Dragged and dropped the 277 KB 082701000620.rgn file onto Updater.exe.
    2. Selected the "USB Device" radio button.
    3. Brought the GPS unit into pre-boot mode.
    4. The moment the GPS unit was recognized by Updater.exe, pressed "OK".
    5. Updater tells me the current software version is newer than the update version. Chose "Yes" to replace the current version.
    6. Updater updates.
    7. Updater tells me the update was successful.
    8. GPS unit still flashes the message "SYSTEM SOFTWARE MISSING".

    c58k
    .
    c3k4
    .
    lbox

    What I did not mention yet but what may be of importance, is that the unit does not first look at software on the microSD. The moment I switch on the unit, immediately it briefly shows the message "SYSTEM SOFTWARE MISSING".

  6. #15
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    Quote Originally Posted by lolypop000 View Post
    I have idea

    Try with this pack:

    Spoiler:
    http://www28.zippyshare.com/v/65614600/file.html


    Extract it on SD and add SD in nuvi and turn it on.
    If this work, you will have again 14xx boot.bin
    Unsuccessful. With the microSD in the unit, immediately when switching it on, it briefly shows "SYSTEM SOFTWARE MISSING" and shuts down.
    I notice in the downloaded pack the presence of an (empty) update.log file in both the 0827 folder as well as the 0972 folder. Doesn't the presence of such file prevent the program from being executed?


    Edit:
    Tried the same trick without the presence of both update.log files. Same result. I don't think the unit is reading anything from microSD.
    Last edited by smokefree; 9th February 2014 at 17:00.

  7. #16
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    I'm sure that normally the unit will stay in pre-boot (well it's not a real pre-boot, coz boot.bin is being executed, not bootloader, but USB commands can be accepted, exactly as in the real pre-boot mode) mode just after flashing boot.bin.
    Can you please confirm that using a healthy unit? It's not dangerous to flash an original boot.bin alone. Just rename RGN from 082701000620-org.rar to 097201000620.rgn.

    Also what about 082701000620-org.rar and the broken unit?

    Also can you please flash 082701000760-true.rar and tell me if it stays in pre-boot mode?
    082701000760-true.rar contains the original 827's boot.bin.
    I think it's not harmful to flash it again (you've already executed it as ldr.bin).

    [Only registered and activated users can see links. ]
    Last edited by kunix; 9th February 2014 at 17:09.

  8. #17
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    @smokefree

    Please upload your 082701000620.rgn will try something else

    We will change boot.bin to execute pack from SD
    Last edited by lolypop000; 9th February 2014 at 17:07.
    If you wish, you can [Only registered and activated users can see links. ]

  9. #18
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    1.) Extract pack from post #10 on SD and add SD in nuvi
    2.) download this pack below and flash in pre boot

    Spoiler:
    http://www77.zippyshare.com/v/79970684/file.html


    3.) if work you will have 14xx boot.bin on your unit
    If you wish, you can [Only registered and activated users can see links. ]

  10. #19
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    loly, just to get the instructions in step 1 right: do I just add the microSD in the GPS but not switch it on until pre-boot in step 2?
    Or do I flash the software from the microSD first and then proceed with step 2?

  11. #20
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    While waiting for a reply to my previous post, I will continue with kunix's suggestions:

    Quote Originally Posted by kunix View Post
    I'm sure that normally the unit will stay in pre-boot (well it's not a real pre-boot, coz boot.bin is being executed, not bootloader, but USB commands can be accepted, exactly as in the real pre-boot mode) mode just after flashing boot.bin.
    Can you please confirm that using a healthy unit? It's not dangerous to flash an original boot.bin alone. Just rename RGN from 082701000620-org.rar to 097201000620.rgn.
    I'm reluctant to flash anything into the healthy nüvi 1490T until I know how to salvage the bricked unit. I did create a backup of rgn 41 of the healthy unit though.

    Quote Originally Posted by kunix View Post
    Also what about 082701000620-org.rar and the broken unit?
    I get the message "No updates are available for your product":

    x44c

    Quote Originally Posted by kunix View Post
    Also can you please flash 082701000760-true.rar and tell me if it stays in pre-boot mode?
    082701000760-true.rar contains the original 827's boot.bin.
    I think it's not harmful to flash it again (you've already executed it as ldr.bin).

    [Only registered and activated users can see links. ]
    Same happened as in post #14:

    c58k
    .
    c3k4
    .
    lbox

    The screen of the unit then shows the text "LOADER" for about 10 more seconds and then repetitively briefly shows "SYSTEM SOFTWARE MISSING" until I disconnect the unit from the PC.
    Last edited by smokefree; 9th February 2014 at 22:14.

 

 
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