关于启动档Bootloader 的降档说明 经验教训，没事别瞎升级启动档

hc586

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。

错误升级的老机器已按照说明重新降档回低版本，使用上了流畅简洁系统。希望能给遇到同样问题的朋友一些提示。
升级前后的机器信息截图如下：

hc586

另外附上一些我顺带看到的关于启动档的不同版本的变化情况，置顶帖里提供的都是很好的版本，看的出来，是lu大版主们费心收集筛选提供的。有问题的版本都剔除了。

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)

TomTom One/XL = 5.5128/5.5136 (suggested) 5.5138 (under testing)
TomTom Go x20/x30/x40 = 5.5229 (suggested) -5.5256/5.5259 (under testing)
TomTom GO x50 = 5.5256 (suggested) - 5.5259 (nder testing)

TomTom with Bootloader 1.xxxx = PLEASE DON'T UPGRADE THE BOOTLOADER

Bootloader 5.5259 (Gox50)
Bootloader 5.5256 (Gox50) official
Bootloader 5.5242 (GOx10/GOx20/GOx30/GOx40)
Bootloader 5.5229 (GOx10/GOx20/GOx30/GOx40)

Bootloader 5.5138 (One/XL) under testing
Bootloader 5.5136 (One/XL) official and sugegsted
Bootloader 5.5128 (One/XL) suggested

Thanks Alex

--------- Bootloader suggested
TomTom One V1/V2/V3/XL = 5.5242
TomTom Gox10/x20/x30/x40/x50 = 5.5242

--------- 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

以上仅供参考，最后，谢谢gps板块对机友们的支持。

hc586

附上bootloader 0.0001各位按需自取吧。
bootloader 0.0001.rar (637.01 KB, 下载次数: 720)

2012-10-25 09:15 上传

点击文件名下载附件

pengjunhan

看贴回贴是美德

marsun

相当详细~正需要呢~one xls升级到5.5.274了想降回来

yesloveme

牛，好专业，哈哈:L