I have picked up one of these from craigslist for cheap, but it has some issues and missing parts.
It's in a reboot loop mode. It reboots with the Garmin screen. Sometimes It boots up to the initial setup screen.
I have unplugged one of the ribbon cables which I believe is the Garmin unit(not sure though) and after reconnecting it and powering up the unit, it booted as it should to my surprise. I have done all the setups and it went to the home screen. I was happy, but as soon I hit the nav button it went back to the reboot loop again.
First of all I need the service manual to make a USB harness which is missing from the unit. It should be a hard wire harness, but it's missing, weird. It's not really hard wired, it has a four pin small PC like connector at the end.
My problem is that I'm not sure if they are using the normal USB connections or not, I don't want to do more damage to the unit.
I have noticed the the middle pins are +5V and -5V.
I have found the harness, but they charge only for the part not including the shipping almost $17.
I have everything that I need to make the harness on my own, just need the right info.
I'm thinking, if I have the harness in the unit and one more time I could boot it normally, I could do a firmware update and maybe the unit would work as it should.
There were a bunch of complaints about these units rebooting, clearing everything from the stored memory.
It looks like an EEPROM problem to me. I don't know anything about these components.
Any help would be appreciated.
It's in a reboot loop mode. It reboots with the Garmin screen. Sometimes It boots up to the initial setup screen.
I have unplugged one of the ribbon cables which I believe is the Garmin unit(not sure though) and after reconnecting it and powering up the unit, it booted as it should to my surprise. I have done all the setups and it went to the home screen. I was happy, but as soon I hit the nav button it went back to the reboot loop again.
First of all I need the service manual to make a USB harness which is missing from the unit. It should be a hard wire harness, but it's missing, weird. It's not really hard wired, it has a four pin small PC like connector at the end.
My problem is that I'm not sure if they are using the normal USB connections or not, I don't want to do more damage to the unit.
I have noticed the the middle pins are +5V and -5V.
I have found the harness, but they charge only for the part not including the shipping almost $17.
I have everything that I need to make the harness on my own, just need the right info.
I'm thinking, if I have the harness in the unit and one more time I could boot it normally, I could do a firmware update and maybe the unit would work as it should.
There were a bunch of complaints about these units rebooting, clearing everything from the stored memory.
It looks like an EEPROM problem to me. I don't know anything about these components.
Any help would be appreciated.
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