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  1. #11
    Alexander2010
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    I use 205 with SanDisk 1Gb memory bank (this device has broken screen and partially damaged system board).

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  3. #12
    Navigation software expert Nuvi 12xx,13xx,14xx,16xx with "software missing" on first step of flashing process
    Nuvi 12xx,13xx,14xx,16xx with "software missing" on first step of flashing processNuvi 12xx,13xx,14xx,16xx with "software missing" on first step of flashing processNuvi 12xx,13xx,14xx,16xx with "software missing" on first step of flashing process
    lolypop000's Avatar
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    How do you overwrite region 5?
    Do you just add all region of 1xxx on SD and flash with ldr.bin from 205?

  4. #13
    Alexander2010
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    I overwrite 05 with region dump from 1410.

  5. #14
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    How do replace the memory chips, need to reballing the Chips ? 169 pin ?

  6. #15
    Alexander2010
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    Yes, reballing is needed.

  7. #16
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    I have 2 faulty unit of 255W,
    Faulty Nuvi Unit A is White screen + no longer get into preboot mode, the LCD screen & case all in mint condition,
    Faulty Nuvi Unit B is unable to acquire satellites but it can be get into preboot mode.
    If I replace Unit A with SanDisk iNAND memory chip from unit B,
    Can Unit A get into Preboot mode and without White screen problem ?
    if yes, after I desoldering, reballing and soldering the Chip, what should I do next ?

  8. #17
    Alexander2010
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    No, may be GPS chipset is corrupted, memory replacing cannot help

  9. #18
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    Thanks Alexander for your reply,
    What I mean that I will desoldering the memory Chip from the Nuvi which suspected GPS chipset corrupted.
    After that, I will replace the memory chip to Nuvi which can't get into preboot mode+White screen.
    Does it work ?

  10. #19
    Alexander2010
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    Yes, this is optimal way!

  11. #20
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    Quote Originally Posted by bpb View Post
    the command will erase the region 5 but no reported if still able to write. I bet you try overwrite before but it's fail, correct?
    hi bpb,
    I tested the command, it succeed erased the region 5 and also succeed to write the Region 5, see below.

    Report on one Nuvi 255W was killed.

    I did back up 2 Nuvi 255W all the region, which same HWID 827.
    attempt to erase the region 5 and write back the region 5 which from other Nuvi 255w,
    command as below:
    ergn,5
    rrgn,5,1:/region_5.bin
    reboot

    update.log
    Parsing "ergn,5"
    Success
    Parsing "rrgn,5,1:/region_5.bin"
    Success
    Parsing "reboot"
    Success

    Nothing change, but once I switched off the Nuvi, it's dead, no power on, even connect with Garmin charger or USB cable connect to PC, still no Power on,
    May be can announce that "it's Dead", Sorry for hear that.

 

 

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