First of all..thank you for your answer.
Quote:
The nav powers up on ibus activity - but that is a purely separate circuit that has nothing to do with having any valid operating system loaded.
You can verify this: connect the nav to NavCoder, then send ibus messages that have nothing to do with the nav, eg: IKE asking the LCM for device status. Note how the nav wakes up and powers up on this message, even though the message content is not for the nav. this is proof that it is simply data activity on the bus that powers up the nav, not actual data content.
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I totally agree. I've played with the drive for a while I've became accustomed to some of it's circuits. Although, without documentation it's a slow process.
Unfortunately, in my case, it's not the drive laser. I've tried with a drive from a working MK3, same results. So if it's not a hardware problem, it's about reflashing the drive. I could get hands on a programmer and a tsop adapter. I will also need a working mk3 to extract the flash contents becasuse I don't have any. But that takes time, anyways I'll post if I get positive results.