How to Down-Grade your TomTom Bootloader (One/XL/GOxxx)
1. First delete the "system" file on your tomtom
2. Then copy the bootloader 0.0001 "system" file to your tomtom
3. Start the tomtom up and it should have a message come up (please wait) and it will load the 0.0001 Bootloader on your tomtom.
4. Now connected the TomTom to your PC again and Delete the "system" file on it,
5. Copy the BootLoader 5.5128 "system" file to your tomtom
6. Unplug your USB cable and you'll get the same (please wait) message and when the tomtom starts it will have the bootloader 5.5128。
Remember using the wrong Bootloader can Kill your TomTom。
Bootloader 0.0001 (One/XL/GOxxx)
Very usefull bootloader to restore an original bootloader.
Load bootloader 0.0001 and after that reload again original bootloader (ex. 5.5128 for One)
Suggested (based on original TT CAB) & under testing (possible updates)
--------- Restore original versionof bootloader
1) Load bootloader version 0.0001 into TomTom root folder. Off/On TomTom
2) Load bootloader you want into TomTom root folder. Off/On TomTom
--------- Bootloader 1.xxx series
REMOVED - VERY DANGEROUS
PLEASE DON'T TOUCH BOOTLOADER 1.XXX - DON'T UPGRADE IT - YOU WILL BRICK YOUR TT
-------------------------------------------------- History of bootloader version
5.5259 (GOxxx) - Indluded in 9.022 (GOxxx)
5.5256 (GOxxx) - Include in TT 9.00.1637 for GO750
5.5229 (Goxxx) - Problem with USB (created by 5.5130) fixed - SUGGESTED
5.5136 (One/XL) - Included in Navcore 9.022 (One/XL) - Suggested
5.5130 (One/XL)- Speed connect - Not sugegsted - Problem with USB - Long time copying file - DON'T USE!!!
5.5128 - better GPS signal quality / speed connect - RECOMMENDED
5.5112 - Support for all TT and MicroSD/SD over 4GB
5.5015 - Unknown
5.5022 - Fix a writing problem over > 4GB barrier
5.5012 - Recognize SDHC (> 2GB) on TT ONE
5.5001 - Unknown
----------------------------------------- Bootloader standard in latest TomTom official CAB
5.5120 GOX20 - GOx30 - GO7000 - TRUCK
5.5136 One/XL 2008 - One/XL 2009
5.5138 XL 2009 Live
5.5256 GOx50