N54Tech.com - International Turbo Racing Discussion
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BMW135xe BMW135xe is offline
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Car: Bmw 135I
Default Need help with jb4 car won't start. - 07-19-2019, 07:38 AM

BMW 135I 2009. I changed battery and coded it, after that I tried to
update firmware hex 10 to hex 12 got cut off at 10% load.I tried to
start car but stalled after 6 seconds . No jb4 on steering wheel either
when I push both steering wheel buttons and my jb4 mobile won't
communicate with the jb4.I disconnected battery but no luck.
I got no car right now...
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 07-19-2019, 01:34 PM

JB4 needs firmware to work so disconnect battery and try to load it. If all else fails we have 2580 chips on our website for $25 with firmware pre-flashed you can pop on.


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