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      05-29-2023, 04:56 PM   #1
terryz84
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N55 Bootmod3 flash failing at 1%

Now my car won't start, getting the The warnings on the iDrive say;
Drivetrain malfunction
Chassis stabilization

Tried unplug the battery for more 10mins, wouldn't fix the this... Still won't start 😔
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      05-29-2023, 05:08 PM   #2
Cdeez2011
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You'll need to flash it back to stock map. That will bring it back to normal. I did that cuz my dme is bench locked
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      05-29-2023, 05:42 PM   #3
terryz84
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Quote:
Originally Posted by Cdeez2011 View Post
You'll need to flash it back to stock map. That will bring it back to normal. I did that cuz my dme is bench locked
How would I flash it back to stock map? I getting the same failed at 1% when trying to flash stock map on bootmod 3.
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      05-29-2023, 07:33 PM   #4
terryz84
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Any suggestions would be greatly appreciated. Thank you!
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      05-29-2023, 08:37 PM   #5
beats
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I would reach out to the bootmod guys. I found the support quite good with them.
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      05-31-2023, 09:32 AM   #6
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Originally Posted by terryz84 View Post
Any suggestions would be greatly appreciated. Thank you!

There should be an option that says flash and re lock on the stock map. I tried the other options that didn't have the re lock and those failed for me.
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      05-31-2023, 05:12 PM   #7
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How are you flashing? Android/iOS/PC? How are you connecting? USB-C ethernet cable, ethernet cable, wifi?

I had the hardest time going back to stock with their new app a couple months ago. I think the update that was pushed today is supposed to help. I was using Android with a USB-C ethernet adapter. I spent about an hour trying to flash stock with it giving up every time until I finally got it to flash. I think the usb-c ethernet adapter wasn't being kept awake (kept going to sleep) and that would stop flashing - just a guess though. I just kept on retrying and keeping the phone on but not moving in case it was a faulty adapter.

If you can, try the PC way to flash.

Last edited by corduroy; 05-31-2023 at 06:01 PM..
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      06-01-2023, 07:47 AM   #8
terryz84
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Thanks guys!
Back for forth 2-3days with bootmod guys. Finally got it fixed. It was actually pretty easy to fix it by just using bootmod3 to restore back to stock tune, re lock DME.

My DME was locked by dealership from a software update. Now I need to find a place to get my DME unlock first before I can use bootmod3 again. Any place recommended in NY?
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      06-01-2023, 10:10 AM   #9
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Quote:
Originally Posted by terryz84 View Post
Thanks guys!
Back for forth 2-3days with bootmod guys. Finally got it fixed. It was actually pretty easy to fix it by just using bootmod3 to restore back to stock tune, re lock DME.

My DME was locked by dealership from a software update. Now I need to find a place to get my DME unlock first before I can use bootmod3 again. Any place recommended in NY?

Call well regarded bmw tuner shops in your area. I bet most of them can do it. Most places don't advertise they do it.
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