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  1. #1
    Member Ocsav's Avatar
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    Question TTone backup and upgrading to a larger SD card

    Hi,

    I have a lot of dumb questions, I hope they are not too dumb to get an answer

    I have a TT One (I guess its a v4, it says 4N00.012 on the bottom) and DeviceVersionHW=ONE (v4) on /ttgo.bif

    It still have the original 256 Mb SD card and the last map update was about 5 or 6 years ago.

    I'm starting to read all the stuff here in order to do the upgrade but 1st I'd like to know if it's possible to do a true backup.

    I've red about copy all the files with windows explorer but I don't trust it much.Is doing an image with Win32 Disk Imager saffer than just copying all the files ? I do fear to lose some hidden or system marked files, I never know what's win 10 doing. So a low(er) level copy looks to be safer. Is this correct ?

    On the other hand, is the SD card all the storage on this device ? There's no boot flash inside ? I noticed that there is a flash erasing tool on the TT site but I'm not sure if it applies to this model ? And if it does, does it have code there or it's only a non-volatile memory area for some configuration?

    In other words, if I just remove the 256 Md card and got a brand new 2 Gb SD (4 Gb would require a newer boot loader, right?) (I assume that TT Home will restore his backup to the new card) can I do everything wrong that's possible to do and then, if it stop booting, can I just insert the original SD card and get it working as it was before ?

    If it's a boot-loader issue and if it is loaded to some flash then a true and final brick is possible ?

    And, at last, a map question. If I'm unable to find a hash for the map I want (Iberia) would another map like South Europe be acceptable for this device ? That's the 2nd reason that I want to put a 2Gb SD in, but can the 32 Mb RAM cope with a so larger map ?

    Thanks in advance.

    file: /ttgo.bif

    Code:
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    Last edited by Ocsav; 23rd August 2016 at 22:19.

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  3. #2
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  4. #3
    Member Ocsav's Avatar
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    Quote Originally Posted by QUIN1965 View Post
    Hello here [Only registered and activated users can see links. ]
    I know, I know, it's all I've been doing this afternoon, that why I'm starting to have some doubts... :-D
    But my greatest worry is... Can I go back ? For sure ?

    Thanks

  5. #4
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    Your ONE-New Edition (V4) has no intern memory. So all manipulations are on a SD-Memory-Card. Make a bootloader-update from your 5.3029 to 5.5128 about your old 256 MB-card (copy the right BL-file "system" in the root of the card and start your TomTom, install complete after a view seconds (wait)). Now you can use a bigger SDHC-SD-card like 4 or 8 GB to install new NC and big maps (and also your old SD-card, if you want). Your old 256 MB-SD-Card is now your "safety backup"
    Last edited by Alfred_ML; 24th August 2016 at 06:38.
    Please, no reply with full-quote, not even for stupid people, who have already forgotten the previous post.

  6. #5
    Member Ocsav's Avatar
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    The smallest SD card I found was a SDHC 4Gb so I had to do the boot loader upgrade. No problem here.

    However migrating the data I had on the old card was not as easy as I expected.
    I was expecting that TThome would just restore the backup I did yesterday, but no. On the 1st run (with the empty 4 Gb card) it upgraded the navcore but even after that it was not able to restore the backup. So I had to copy back the files I have saved using the windows explorer.

    It took a few reboots but now it looks to be working exactly as it was before. So, now I can start working on the map upgrade task.
    Thanks for your help.

  7. #6
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    Forget TTHome backups. Now do another full Windows backup of your card before starting to play any more!
    Please do not post "thanks" but use the "reputation" star(*) bottom/left or "like" bottom/left buttons
    S i m p l e s

    PS If you find any dead links on MY posts please pm me & I'll try to fix/reload

  8. #7
    Member Ocsav's Avatar
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    Ok, I will.
    I outsmarted myself, I thought that the restore function would be part of the boot loader. I must remember that I know nothing about GPS devices. This could make sense with networked devices where a tftp client is an easy solution, but this is USB... my bad... :-(

 

 

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