Thanks Dave, He is popping in to tonight with unit.. I will have to change bootloader, as unit has never seen an SDHC SD card from new..
Will I follow this instruction to change bootloader -----> 4. For all pre x20 models like the x00's, x10's (510/710), Ones & One XL's (that cannot read SDHC's or have not previously seen/booted from an SDHC card) you first need to load a suitable bootloader (system file) to enable the device to actually boot up from your new 4Gb SDHC Truck card. The easiest way for you to do this is to copy/paste/overwrite the "system file" (extracted from the attached 5.5120 system file.rar) or from any of these downloaded dumps to your current standard SD card or internal memory and boot up once with that new system file then it will read your new SDHC card
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Re: One XL Update?
take SYSTEM from the dump file and copy to old card with old nav , overwrite old system
put it in device and boot [ with a fully charged battery ]
you see a new screen , wait till its finished
now you can use new card with new navcore
PS , maybe the 720 already had BL 5.xxx
Last edited by basflt; 25th November 2011 at 18:08.