how to reflash Damaged Bootloader tom tom go 550

Hi..i flashed wrong bootloader and unit is dead ..no connections to pc and no display.Only red light when I connect unit to pc..Is there any way to reflash back bootloader chip?
[TomTomGo]
DeviceName=TomTom GO LIVE
DeviceVersionHW=GO 550 LIVE

jaaa1976 wrote:..i flashed wrong bootloader and unit is dead

What is the # of the "wrong" bootloader? Have you done a 30 sec. hard resetP

tendriver wrote:

jaaa1976 wrote:..i flashed wrong bootloader and unit is dead

What is the # of the "wrong" bootloader? Have you done a 30 sec. hard resetP

number of bootloader is Bootloader(Reinicio)_5.05
When I flashed... I saw screen going wrong.. black.
I dismantle unit ..but didnt find where is location of bootloader ..so i put back together unit ..after 3 hours connected to pc light is green now ..but no connections to pc.
I know ..bootloader I flashed is not for this unit...but I thought this can happen ..
is there any possibility flash bootloader chip with universal programmer eeprom?

jaaa1976 wrote:1. number of bootloader is Bootloader(Reinicio)_5.05
2. When I flashed... I saw screen going wrong.. black.
3. I dismantle unit ..but didnt find where is location of bootloader ..so i put back together unit ..after 3 hours connected to pc light is green now ..but no connections to pc.
4. I know ..bootloader I flashed is not for this unit...but I thought this can happen
5..is there any possibility flash bootloader chip with universal programmer eeprom?

1. OUCH!!
2. I can imagine.
3. It is in the 64mb RAM memory.
4. A hard lesson learned.
5. Maybe, maybe not.

Sorry to reference another forum, but you might try this:

Silverhawk wrote:Sorry to reference another forum, but you might try this:

..but not possible start unit for downgrade bootloader or rescue bootloader at the moment
bootloader need to be flashed first with some hardware ..as universal programmer ..anybody know where are located bootloader chip on motherboard unit tomtom go 550 ?

jaaa1976 wrote:bootloader need to be flashed first with some hardware

Have you tried putting a complete setup, navcore with bootloader & a map, on a 2GB SD card & attempt to boot up with it?? I have b/l 5.5279 on a X20.

tendriver wrote:

jaaa1976 wrote:bootloader need to be flashed first with some hardware

Have you tried putting a complete setup, navcore with bootloader & a map, on a 2GB SD card & attempt to boot up with it?? I have b/l 5.5279 on a X20.

Yes ..I also have working setup on sd card +bootloader ..but unit dead ..cant start.
i desolder eeprom ..I hope bootloader is there ..but universal programmer wont read chip ..so i cant flash new bootloader.
atached picture is board ...dont now exactly where is bootloader located?

jaaa1976 wrote:don't know exactly where is bootloader located?

I told you in post 4 that it is in the 64mb RAM memory.