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how to reflash Damaged Bootloader tom tom go 550   

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how to reflash Damaged Bootloader tom tom go 550

Postby jaaa1976 » Mon Jun 30, 2014 8:36 am

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
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby tendriver » Mon Jun 30, 2014 3:46 pm

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
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby jaaa1976 » Mon Jun 30, 2014 6:07 pm

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 :013:
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?
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby tendriver » Mon Jun 30, 2014 10:14 pm

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.
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby Silverhawk » Mon Jun 30, 2014 10:18 pm

Sorry to reference another forum, but you might try this:
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby jaaa1976 » Mon Jun 30, 2014 11:33 pm

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 :017:
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 ?
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby tendriver » Tue Jul 01, 2014 7:35 pm

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.
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby jaaa1976 » Tue Jul 01, 2014 8:48 pm

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? :017:
Image
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Re: how to reflash Damaged Bootloader tom tom go 550

Postby tendriver » Tue Jul 01, 2014 10:51 pm

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


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