lanz80 wrote:I have the opportunity to purchase a TomTom One XL, apparently it can be updated by oneself. But, which are the features to take in consider to ensure that is posible? Maybe the date of fabrication or firmware?.
A ONE XL does indeed have a SD slot. With a bootloader 5.5012 or higher, you can use any size SD/SDHC card.
You cannot use the internal & external at the same time. This means that your SD/SDHC card must have a complete setup on it.(navcore, map etc) With a complete setup, the card becomes the default setup, when installed.