Well, I ran the script and the unit is once again operational for the most part. But I'm still getting the tuner restart error. Do you know if there's a way to remove the display of error messages somewhere in test mode? Because the unit is working fine, it's just that the error message blocks your view and prevents you from using the menus without hitting the ok button constantly. 

To get out of testmode I just eject the SD then turn off the ignition. I've never found a way of gracefully exiting.

in your script, replace reboot with RESET 1

in your script, replace reboot with RESET 1

kttii,

Will this correct the tuner restart error problem?

So I decided to reply to pioneer and this is what they said.

It is possible that there was an issue with operating system on the unit

prior to the update. Therefore when performing the update there was some

form of sector error which resulted in this issue.

Now if I was dealing with a computer, a boot sector error would be easy to fix but I have no idea how to manipulate the inside of this thing. So, does anyone have a clue on how to fix this or an experimental way I can fix this bad boot sector error.

So I decided to reply to pioneer and this is what they said.

 

It is possible that there was an issue with operating system on the unit

prior to the update. Therefore when performing the update there was some

form of sector error which resulted in this issue.

 

Now if I was dealing with a computer, a boot sector error would be easy to fix but I have no idea how to manipulate the inside of this thing. So, does anyone have a clue on how to fix this or an experimental way I can fix this bad boot sector error.

I wouldn't have any faith in Pioneer help desk to diagnose this. They can't even handle simple things. Assuming you are still stuck with the tuner error, it could be a hardware or software problem. Not as simple as a boot sector error. I recommend sending the unit for repair. But a unit that old might not be worth the expense. I'd look at replacing it with newer unit with new technology/features. 

I wouldn't have any faith in Pioneer help desk to diagnose this. They can't even handle simple things. Assuming you are still stuck with the tuner error, it could be a hardware or software problem. Not as simple as a boot sector error. I recommend sending the unit for repair. But a unit that old might not be worth the expense. I'd look at replacing it with newer unit with new technology/features. 

Meh, can't do that right now. Can we revisit the idea of reverting the head unit back to its original firmware? The way I see it, a simple software update shouldn't be causing a hardware problem. Maybe there was a break in power that screwed something up during the update. The head unit is after all in a 17 year old car with electrical problems. I just find it surprising that the error started after that update. I'd also like to know if there is a way to stop the unit from showing any error messages like getting rid of the nag screen and that objects appear closer message.

I'm assuming that no one has a fix for this tuner restart error. Since I'm at the end of my rope, I'm ready to experiment. I don't see the newer head units offering anything that I would want. So I'd rather brick this one trying to fix it than send it in for repairs or get a newer unit. So send the ideas my way so I can try them out.