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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Firmware on JB4



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      12-23-2012, 10:05 PM   #1
N54Kid
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Firmware on JB4

I hooked up my JB4 with my USB to my laptop and the firmware I have now says 6/10/12 how old is this one? I saw on N54tech they have a new one out 8/21. Which one should I update too? Thanks
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      12-23-2012, 10:19 PM   #2
AWil335i
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Originally Posted by N54Kid View Post
I hooked up my JB4 with my USB to my laptop and the firmware I have now says 6/10/12 how old is this one? I saw on N54tech they have a new one out 8/21. Which one should I update too? Thanks
The one from June is about 6 months old. I'd update to the most recent firmware for your board.
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      12-23-2012, 10:23 PM   #3
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I am in the process of updating it but not really sure on how to do it. Don't want to mess nothing up. This is will be my first time updating it.
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      12-24-2012, 01:15 PM   #4
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http://www.n54tech.com/forums/showpo...21&postcount=1

Its pretty simple. Just download the software from n54tech, plug your laptop in, and click on upload firmware.
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      12-25-2012, 02:32 AM   #5
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I would def upload the newest firmware Terry has for the JB4. Before I had my G5 ISO I remember the 6/10 firmware and the 8/21 is better in my opinion. download the hex file Terry puts on N54tech under JB4 firmware, software ect... scroll down to right under the big box that tells you what settings do what and you will see a small little hex file. Download that to your computer and save it so you know where it is. Then go into your car and with your foot off the brake, push the start button twice (a good way I use to check was to turn my headlights on and make sure they come on) Connect your laptop to your computer and connect to the JB4 interface. click FILE and UPLOAD FIRMWARE, then click OK, and then it lets you browse to what you want to load. Find the new firmware you just downloaded and double click it and then click upload. It takes about 5 minutes I would say and when its done it will say upload complete. Make sure you go to the settings page before you upload and select regular JB4 since there is alot of options out there now with the G5 and G5 ISO. After you do that and the JB4 uploads it will say UPLOAD COMPLETE! WHAAA LAAA, your done!
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      12-26-2012, 08:21 PM   #6
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Thanks everyone. I been busy but in the process of updating to the new software. I will post when it's done.
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