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  1. #11
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    The tomtom has a SD card reader/writer built in the device (it writes and updates files such as mapsettings.cfg, itinerary and favourites) and can be used as an SD reader/writer when connected via USB so it is perfectly feasible that while the SD card was in the device either while updating the BL or after while rebooting that it malfunctioned and damaged the card causing the unallocated partition. Which is exactly what happened. The reason the SD card wouldn't work was because of the unallocated partition, without it, it works perfectly. That partition was not there before I updated the BL I had checked and if so the BL update would have failed as the device would have been unable to read the SD card. It was there immediately after and was thus not recognised in tomtom.

    The moment it rebooted after the BL update it did not work and I didn't put in the PC in between so it couldn't have affected it at all. I've been updating Roms and building programming and repairing systems for over 25 years so perfectly understand about formatting an SD card but thank you for your advice.

    I am aware that under normal circumstances it cannot create partitions intentionally but as it is a writer and the card wasn't locked it could have malfunctioned and caused the problem causing the damage to the card. Thanks for reply but your assumption is incorrect because as i said the fault occurred when the card was not in the PC, the sequence of events i described show that.

    Hopefully if other users encounter the same issue with a faulty SD reader/writer in their tomtom damaging their SD card they can fix it in the manner I have.

    Thank you both again for your comments and hopefully it may help others if needed.

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  3. #12
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    Confirmed using a TomTom One XL. You have to do a cold boot the first time (hold on/off button until you hear the TomTom drums or insert pin into RESET keyhole if your TomTom has one).
    Also, the TomTom One XL reads EITHER the internal memory OR the SD/SDHC card. This means that if you want to use a map from the SD/SDHC Card you have to copy all of the system files to the card.

  4. #13
    TomTom Expert Using an SDHC card in older devices
    Using an SDHC card in older devices
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    Quote Originally Posted by zorbanyc View Post
    Also, the TomTom One XL reads EITHER the internal memory OR the SD/SDHC card. This means that if you want to use a map from the SD/SDHC Card you have to copy all of the system files to the card.
    Absolutely correct. This applies similarly to all pre x20 models like the x00's, x10's (510/710), Ones & One XL's
    Please do not post "thanks" but use the "reputation" star(*) bottom/left or "like" bottom/left buttons
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  5. #14
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    Quote Originally Posted by zorbanyc View Post
    Also, the TomTom One XL reads EITHER the internal memory OR the SD/SDHC card. This means that if you want to use a map from the SD/SDHC Card you have to copy all of the system files to the card.
    This is not right. I have a G0730 with internal memory and also a sd card slot. If the internal memory is full you can use a map from sd card without copying system files to memory.

  6. #15
    TomTom Expert Using an SDHC card in older devices
    Using an SDHC card in older devices
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    Quote Originally Posted by duur1duur View Post
    This is not right. I have a G0730 with internal memory and also a sd card slot. If the internal memory is full you can use a map from sd card without copying system files to memory.
    It IS correct (see my previous post) because your device like x20/x40/x50's CAN use either and/or both as you say but NOT the older models.
    Please do not post "thanks" but use the "reputation" star(*) bottom/left or "like" bottom/left buttons
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