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Old 03-12-2015, 08:15 PM   #1
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Default Megasquirt won't connect

I originally thought this was a MSDroid problem, posted here: https://www.miataturbo.net/megasquir...gnature-83401/

Then I realized my computer won't connect either. I've now tried MSDroid on 2 phones and Tunerstudio on 2 computers. This is after it worked flawlessly for the last year or so. I bought all new cables; new serial cable, new serial to usb for the computer, and new usb to mini-usb for the phone. None of which would work.

I opened the megasquirt up but nothing looked obviously wrong so I put it back together. Is there anything I can try or should I start begging one of our MS gurus to save me? Anyone had this problem before?

*Edit - FWIW, the ECU still works, the car drives fine, just had a few issues in the tune I wanted to work on.
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Old 03-13-2015, 10:14 AM   #2
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Are you using a direct serial connection, or a USB cable? If it's a USB adapter, what kind?
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Old 03-13-2015, 02:51 PM   #3
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I'm using a serial to USB adapter. The one I normally use was from you guys (DIYAutotune). I tried another one that I'd used in the past, not sure where it came from but neither would work so I assumed that wasn't the issue.
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Old 03-16-2015, 11:14 AM   #4
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Try running the Port Check program and post a screen shot of the results.
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Old 03-16-2015, 04:43 PM   #5
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I assume this is what you're talking about, if not let me know.



I uninstalled/reinstalled the usb adapter and checked the settings to make sure they were at 115200.

Thanks so much for the help. I really appreciate it.
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Old 03-17-2015, 03:25 PM   #6
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Sorry, I need you to use a different program - it's here: http://www.diyautotune.com/downloads.../portCheck.zip
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Old 03-18-2015, 08:12 PM   #7
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No problem, thanks again for the help.

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Old 03-20-2015, 09:35 AM   #8
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No signal at all. Exactly what MS variant is this?
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Old 03-20-2015, 12:06 PM   #9
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Old 03-23-2015, 11:59 AM   #10
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What firmware did you load to it?

(If the answer is, "I don't know", please reload the firmware.)
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Old 03-23-2015, 03:45 PM   #11
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Braineack built the megasquirt for me and loaded the firmware so the answer is "I don't know." I'll give it a try and report back. I assume the newest available is what I want? Thanks.
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Old 03-23-2015, 03:56 PM   #12
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Nope, you want what he put on there.
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Old 04-10-2015, 07:31 PM   #13
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I finally got a chance to mess with the car, so I'm back here begging for help again.

I downloaded firmware, installed the boot jumper, and tried to reload the firmware. The great news is that I'm getting a connection, the bad news is I'm too dumb to figure out how to load the new firmware.

When I run the loader I'm getting these prompts and I'm unsure how to go further:



The readme file says to open Tunerstudio and it should detect and automatically install the correct file, but it does not (or I'm doing something wrong). I was unable to manually install the firmware through Tunerstudio as well. When I try to "Detect Device" under project properties I am getting a message that no Firmware is installed.



Again any advise is greatly appreciated and I offer infinite apologize for my ignorance.
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Old 04-13-2015, 04:51 PM   #14
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Please make sure you've unzipped the firmware download. That error message is very common when running it inside a ZIP file.
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Old 04-15-2015, 07:09 PM   #15
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Matt, thank you so much for the help. I got the new firmware loaded and tunerstudio connected right up with no other issues. This is actually the 3rd megasquirt I've bought from you guys. Hopefully I won't need another one anytime soon, but if I do DIY will definitely be my first stop.
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