Tomtom one problems updating
Know that all models within one range are almost identical, e.g.GOx30: 530, 730 & 930 are almost the same: the differences are flash size and EPT in the 930 (the GO630 is the odd one out). The GOx50 is like GOx40 (and the GO9000), the most most noticeable differences are FM & MP3, which are left out in the x50. The One series has differences within the series, as well as the XL series. ": TTuser makes hacked versions of the different navcores for special needs.The "Official" marks are based on the Tom Tom (UK) website: It is incomplete. The most important reason for using the SE navcores is getting new functionality. A TT One V1 will never become a TT GO950, but it can be fun seeing how far you can stretch the One's capabilities.These navcores can be used on TT's that were not made to use them (e.g. SE navcores do not require additional patching (they are already very heavily modified). The bootloader is hardware specific, not navcore specific.
This is generally more successful than running in other modes (x40/x50). In general, do not update your bootloader unless you know what you are doing. The size of your map is slightly larger than the download size.To the best of my knowledge, these cards require bootloader 5.5012 or later.If you decide to buy a SD card, check that the size is supported by the navcore (more precise: the bootloader, more information in the item above).As far as I know, all modern navcores/bootloaders support 4GB SDHC cards. A Class 6 card is essentially required, a read-speed of 133x works fine (if you want to know the difference, consult wikipedia).I recently had good results with navcore 8.410 & map 8.25-2157 on a 100x read-speed SD card.