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  1. #1
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    Guide Convert Nuvi 40/50 (US/EU) to 42/52

    Convert Nuvi 40/50 (US/EU) to 42/52


    You can safely convert your x0 to x2 using this method. You will not enable any additional features in your 40 or 50 as the x0 and x2 features are identical, but you will have a unit with the same 'new look' that is now in all 2013 devices, funky icons and squared-off text boxes:

    [Only registered and activated users can see links. ] [Only registered and activated users can see links. ] [Only registered and activated users can see links. ] [Only registered and activated users can see links. ] [Only registered and activated users can see links. ] [Only registered and activated users can see links. ] [Only registered and activated users can see links. ]

    Spoiler: INSTRUCTIONS
    Because this first method [hybrid method] uses the original 40/50 boot.bin with original HWID of 1350, there is practically zero chance of bricking your unit if you use the correctly modified fw and follow the correct flashing process. Flashing back to the full 40/50 fw is the same process described below but using original fw as an rgn.

    Things that you will need to flash the firmware, although you won't need to download these if you use the ready-made kit below:

    • The latest 40/50 firmware from [Only registered and activated users can see links. ]
    • The latest 42/52 firmware from [Only registered and activated users can see links. ]
    • [Only registered and activated users can see links. ]
    • [Only registered and activated users can see links. ]


    Before you attempt any flashing of firmware, always do a full files backup of your unit (important), a [Only registered and activated users can see links. ] to microSD Card (ESSENTIAL!), and either [Only registered and activated users can see links. ] your unit or [Only registered and activated users can see links. ]. There is no need to remove any files from from 40/50 as 42/52 uses the same text, keyboard, voice, JCV etc files and the logo splash is identical so no need to reflash it either.

    We need to flash an rgn file combining the boot bin from 40/50 and the fw_all bin from 42/52. You can download this kit which contains both the modded 13500100400.rgn and updater.exe in which case you can then start from Step 4. [Only registered and activated users can see links. ] Extract it to find the files '135001000400.rgn' and 'Updater.exe', then follow from Step 4 in the tut below. Or you can make the rgn yourself using Steps 1, 2 & 3:

    1. Open the 40/50 fw in RGN_Tool, press the Save button on the first section to save the boot.bin somewhere convenient. Close RGN_Tool.
    2. Open the 42/52 fw and press the Load button on the first section, browse to where you saved the 40/50 boot.bin and select it.
    3. In the Overrides section, check HWID and enter 1350 in the field. Press the RGN button to save the modded fw as 135001000xxx.rgn (where xxx is the version number of the 42/52 fw you're using eg 135001000400.rgn).
    4. Put Updater.exe in the same directory as the rgn file and drag it on top of Updater.exe or just start Updater by double-click. If you are using Win 7>, you may have to right click Updater.exe then select run as administrator and set compatibility mode to WinXP SP3.
    5. Select 'USB Device' on Updater.exe when it opens, leave it visible on your desktop.
    6. Plug the usb cable into your PC, but not into the unit yet [Use a REAR port, no hub].
    7. Ensure that your unit is completely off. Use your left thumb to hold the upper LH corner of the screen (as you look at it), then plug the usb cable into the unit while still holding the corner to access pre-boot mode.
    8. When the unit details appear in the usb window of Updater.exe, quickly press OK and wait for 'Loader' to appear on the unit's screen before releasing the screen corner. Do not unplug the unit until Updater.exe prompts you that the fw has been flashed successfully.
    9. Clear nonvol or hard reset the unit again. If you wish to restore your 'favourites', copy 'Current.gpx' from the GPX folder of your backup and paste it into GPX folder on the device then rename the file temp.gpx. On the next boot your favourites will be restored.
    10. Make another nonvol backup and keep both your previous [40] and present [42] bin files separately for the life of the device. A backup of region 41 can help recover from a catastrophic bricking.


    The unit will now identify as a 42 or 52 on the boot screen. To update firmware, you will need to repeat the process using modded rgn made as above.

    NOTE: If you use WebUpdater to update firmware, it will identify the unit as 42 or 52, but will download the 40/50 GUPDATE.GDC to the unit and the unit might remain as 42/52 depending on Version number. To flash back to full 40/50 fw you'll need to make the full 40/50 fw as out.rgn and flash using updater.exe.

    EDIT: Thanks to Alviora (see Post #5) I worked up the guts to flash the full x2 fw. Works fine and flashes back to x0 ok. To do this, save the x2 fw as OUT.rgn (or updater.exe will give the 'No updates found for your device message' if you use the 'fail-save' naming convention of '<hwid>01000<swv>.rgn'). To flash back, do the same with x0 fw as OUT.rgn. Flashing full x2 fw may inherently have more risk than using the x0 boot.bin, it should be ok however time will tell. More convenient for future fw updates as WebUpdater will dl the x2 fw gupdate to the unit. Same precautions, do full files and NV backups first with hard reset/clear nv before and after flashing.

    BE AWARE that the usual caveats apply and you are doing this at your own risk. In in unlikely event that you manage to brick your device please do not blame me. I've done both flashing methods back and forth several times on a US 40 & AU 50 without any problems but cannot and will not warrant that you won't get into trouble. If you don't understand the process, don't attempt it until you do understand. Ask for clarification if needed please.
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    Last edited by Neil; 15th July 2016 at 23:55. Reason: Attach V4.00 Hybrid pack and update tut.
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  3. #2
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    Do you try to flash original FW of nuvi 42/52 to your nuvi 40/50, with no change of boot.bin?

  4. #3
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    I was actually tossing up whether to try that before posting this tut, but, no, i haven't tried it .......
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  5. #4
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    If anybody have guts to try flash original FW 42/52 ( with original boot and fw_all) to nuvi 40/50, please report if work or not.

  6. #5
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    Quote Originally Posted by lolypop000 View Post
    If anybody have guts to try flash original FW 42/52 ( with original boot and fw_all) to nuvi 40/50, please report if work or not.
    flash a completely original firmware from 52 with original boot and fw_all since its inception. everything works.
    Обожаю смотреть как русскоязычные пользователи общаются между собой на англоязычных ресурсах..

  7. #6
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    Do you clear non vol befor convert or you just remove gupdate.gcd and flash in pre boot?
    Text, voice, keyboard is compatible from 40/50?
    After convert, webupdater see device as 42/52 and download all for 42/52 and model is still 40/50?

  8. #7
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    @Loly
    All the 40/50 files are compatible with 42/52.

    @Alviora
    How did you flash original x2 fw? Standard RGN method in preboot?
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  9. #8
    Important User Alviora's Avatar
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    lolypop000 clear nv , del gupdate.gcd , text, keyboard are compatible. webupdater see device as 42/52 and download all for 42/52 including the new firmware. long time ago, with the appearance of uat284.
    Neil flash original firmware in preboot.
    Обожаю смотреть как русскоязычные пользователи общаются между собой на англоязычных ресурсах..

  10. #9
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    Works like a charm :P
    tz
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  11. #10
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    Do we need to flash a new 52 Garmin logo splash screen (as we did with 37xx->34xx) or is it the same as 50?

 

 
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