TomTom XL v9 red circle white cross

Hi,
i have a Tomtom XL v9 that dont go past a red circle with a white cross, my friend was updating the tomtom and may have changed the bootloader and navcore but not sure.

what i have tried:
downgrade bootloader (0.0..0 and 0.0..1) - does nothing it cant read the file
full format the tomtom and restore from tomtom home
diferent navcore
tt clear flash
reset (30 secs on power)
etc

the current bootlader according to black screen with info is s5.5011

i'm starting to think the memory chip is gone bad, since it cant read the contents from the bootloader.

any ideas so i can try salvage this unit?

thanks in advance

xaueadeus wrote:Hi,
i have a Tomtom XL v9 that dont go past a red circle with a white cross, my friend was updating the tomtom and may have changed the bootloader and navcore but not sure.

what i have tried:
downgrade bootloader (0.0..0 and 0.0..1) - does nothing it cant read the file
full format the tomtom and restore from tomtom home
diferent navcore
tt clear flash
reset (30 secs on power)
etc

the current bootlader according to black screen with info is s5.5011

i'm starting to think the memory chip is gone bad, since it cant read the contents from the bootloader.

any ideas so i can try salvage this unit?

thanks in advance

This is a chaotic story so the best is to buy a new one.

holyhead wrote:This is a chaotic story so the best is to buy a new one.

Thanks for the reply! I'm starting to think that would be the best and least "painfull" way to go!

Do you know if there is any info available on the "dark arts" of reprograming the bootloader directly on the chip using a programmer?

xaueadeus wrote:

holyhead wrote:This is a chaotic story so the best is to buy a new one.

Thanks for the reply! I'm starting to think that would be the best and least "painfull" way to go!

Do you know if there is any info available on the "dark arts" of reprograming the bootloader directly on the chip using a programmer?

To my knowledge not.

Some people assure me that this tool is able to restore a faulty Bootloader
I would lke to say, give it a chance, I didn't test it yet, just tell me your story afterwards, please.

Restore Tool
ftp://FTP_Guest_Once_20180101:FTP_Guest ... erstel.rar

pe1agp wrote:Some people assure me that this tool is able to restore a faulty Bootloader
I would lke to say, give it a chance, I didn't test it yet, just tell me your story afterwards, please.

Restore Tool
ftp://FTP_Guest_Once_20180101:[email protected]:47474/TomTom%20Restore%20Faulty%20Flash%20Update%20Bootloader%20v1.0100%20&%20Special%20Navcore%208.041/NC_8.041_One_V4-en_V8_2008_herstel.rar

Thanks for the tip, i will give it a go.
I will report back afterwards.

So i just tried the tool not used the navcore provided and it worked :D Low level format the memory and then reload the backup to the deviced and it booted ok.
Had a little trouble at the begining, it was showing some errors during the low level format but i think that was problems related with the usb port/cable not doing a solid conection!

Congratulations !

And many thanks for the feedback

It's a pity some people don't say thank you or click the Thumbs up button either...but I will, good work pe1agp