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  1. #1
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    6 out of 6 members liked this post. Yes Reputation No

    BB Flash Basics, Startup, and FAQ

    Hey guys. It seems the BB Flash is starting to become more and more widely used. Being that, more and more issues are going to pop up. I am not a tuning expert, and I have not even used this flash...yet. (plan to in the next couple days when I pickup my car).

    I am simply going to put together known information about the flash now and the FAQs I am aware of. Please if you know of or have experienced any issues any fixed them or not, please post. Once more information is in here I will copy paste and compile a better one post summary for Sticky to bump to the top and hopefully make a sticky. I know Terry has a pretty good write up over on N54tech but it is geared toward using BB Flash as a backend flash and it's on his site, so I figured I would make a new thread here.

    First things first.

    What is BB Flash?

    BB Flash is a open source flash tuning program designed to supported by the community and offered for free for people to create their own tuning maps or use maps shared by others in the community to flash to their own cars for free. These maps are unlockable and are a much more "complete" flash to the DME. Currently only the N54 is supported.

    What is open source?

    Open source means the program is completely open. From the maps (.bin files) the .xdf (file used to interpret the coding of the .bin into actual tunable tables) and the software code itself for the program are all open files that users can build upon themselves making the program better and better. Again, I am no tuning expert, and I have no idea if the .xdf has any reason to ever be altered at this point but someone feels the need to know what is in there, it is there for you. NOTHING IS LOCKED IN OPEN SOURCE.

    Can I use BB Flash as a backend flash in conjunction with my JB4?

    Yes you can! In fact, Terry has a complete layout on how to do this on his forum n54tech.com The specific link is http://www.n54tech.com/forums/showthread.php?t=2056


    How do I get BB Flash and where do I start?

    You can find the BB Flash software in the downloads section of this forum. Link --->http://www.bimmerboost.com/vbdownloads.php?categoryid=1

    First though, you need a BT (Bavarian Technic) Cable. This is the cable you will use to connect your computer running the BB Flash to your vehicle via the OBDII port. There are plenty of places you can buy this cable. And should be noted that you do NOT need a cable with any VIN's left. It is OK to purchase someone's used 1 VIN cable for BB Flash, however I recommend purchasing one with at least 1 VIN so that you can use the BT Cable software for other features it has.

    Here's a link to one vendor that sells the cable --> http://burgertuning.com/scanner.html

    Once you have the cable and have downloaded a map that someone shared with you, or you got from the download section here you can procede to the following:(WARNING: Although BB Flash has been successfully used on many vehicles this is not a commercially sold product and support is limited to the community and its users, with any aftermarket OEM altering software or hardware there are risks involved in using it. If you do not understand what flash tuning is and this is your first aftermarket upgrade to your vehicle, chances are this is NOT the program for you. I recommend looking into COBB or Burger Tuning for other tuning sources that offer support with any issues you may have using their product)

    1) Install BB Flash Software on your computer
    2) Plug in your BT Cable from your computer to your OBDII port of your vehicle. (Like others, I recommend doing this at home so that if you do run into a problem you are not left stranded somewhere trying to fix it)
    3) Click the button "Identify DME" check your DME code and be sure the file you downloaded is specifically for your DME type.
    4) This next step is rather important. You want to read your DME's current file and save this file in a safe place on your computer. This will be your stock "map" file and can be reloaded later if you incur other issues loading modified files. DO NOT PROCEED IF YOUR VOLTAGE IS AT 0 IN THE BB FLASH HOMESCREEN. If you have an 07 or older N54 it is recommended that you connect a charger to your vehicle is these DME's known as "K-line" are more sensitive to low voltage and can cause incomplete read/writing of the DME files.

    Yes, some nice people have loaded their own stock files to the download section, but that risk is up to you.

    The Read portion will take some time, Over an hour in some cases, so do not be alarmed if you see a long wait time. However, if your wait time seems out of the ordinary, as in 2+ hours, it may be the computer you are using. A list of computers/processors/etc. that are known to work well will be compiled. Currently it seems either old antique laptops sitting around or the latest and greatest both seem to work the best.

    5. Write your new file to the DME. Click Write to DME and select the .bin file you either modified or downloaded. The write should not take nearly as long as the read, however the initial write may still take some time. After the first write, additional writes are ~10 minutes.

    6. BB Flash software will notify you with a status bar when the flash is complete. (If you had an incomplete flash please see below in the troubleshooting section) You are now complete and may unplug your BT cable from your vehicle, start the car and check out your new flash!



    Where do I get maps for BB Flash?

    Lots of maps are available for the BB Flash via the downloads section here at bimmerboost.com

    Here's a link- http://www.bimmerboost.com/vbdownloads.php?categoryid=1

    How do I modify/create my own maps?

    You will need to make sure you have the .xdf file for your specific DME code. Once you have this you need to download tunerpro. You can get this from their website. http://www.tunerpro.net/

    This is again, free software, but I believe they have a paid version that offers some more features.

    There is plenty to read up on tunerpro and I am not going to get into altering maps. If you do want to play around I recommend starting off with the compare feature and just comparing a stock .bin to some other modified .bin files others have uploaded and see where the changes are. When you have questions on specific tables, research those tables names' and find out what they do.


    Troubleshooting:

    My voltage is 0 what should I do?:

    You may need to click "read DME" multiple times for your voltage to show up. Sometimes this is caused by your computer software not communicating properly. Also it may not be a bad idea to have a charger hooked up to your car during your first read/write as they are lengthy. Usually not necessary for additional writes.

    I was writing a map and it stopped before completion?:

    This is known as a partial write and may show up as an "authentication error". The write process happens in three stages, and if it fails during any of these stages the firmware on the DME is incomplete and will not operate the vehicle. This is probably caused by voltage. Make sure you have a charger on your car, and laptop/computer and try writing again. If this doesn't work the DME may have been left in a state where it will not receive a write and needs to be reset. Simply unplug the neg. terminal on the battery for a couple minutes to allow the DME to completely reset then reconnect and try again. If this fails you can also attempt a force write.

    I loaded a bin file and it completed fine, but now my car won't start/run correctly?:

    It's probably just a bad bin i.e. poorly modified for one reason or another. This is where your stock bin comes in handy. Just reload it and start fresh, or try loading another bin that you know someone else has used succesffully.
    2009 335i coupe back to stock...for now

    Click here to enlarge

  2. #2
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    dont do it matt...
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

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    Click here to enlarge Originally Posted by Ak335i Click here to enlarge
    dont do it matt...
    Do what?
    2009 335i coupe back to stock...for now

    Click here to enlarge

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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    Do what?
    brick your ecu
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

  5. #5
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    This is a very necessary thread.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    should be a sticky.

  7. #7
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    Click here to enlarge Originally Posted by Tzu Click here to enlarge
    should be a sticky.
    WTF I am a sticky.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    I would recommend to have INPA k+dcan cable along BMW flashing software (winkfp) as backup plan, it will flash ECU with latest BMW files then you can start over.

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    Click here to enlarge Originally Posted by Ak335i Click here to enlarge
    brick your ecu
    Click here to enlarge
    2009 335i coupe back to stock...for now

    Click here to enlarge

  10. #10
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    Click here to enlarge Originally Posted by Oilphase Click here to enlarge
    I would recommend to have INPA k+dcan cable along BMW flashing software (winkfp) as backup plan, it will flash ECU with latest BMW files then you can start over.
    This. Its currently where im at. Don't seem to be having any luck doing forced writes

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    Click here to enlarge Originally Posted by manbeer Click here to enlarge
    This. Its currently where im at. Don't seem to be having any luck doing forced writes
    best option is to try different computers or do like normal write until it crash and then use force write.

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    All the writes are taking like 2 hours though. Maybe once the rainy weather clears i will keep hammering it with writes in hopes that itll work though. Before i attempt dping the inpa thing anyway, which i still can't get to work with my computer. On a brighter note the weather is supposed to be nice here over the weekend

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    OK - Based on my current situation I would highly HIGHLY advise that anyone with a tune such as Dinan that will not allow for you to make a backup flash back to factory software beforehand to be on the safe side

    it MAY work if you do a forced write the first time but it would probably make sense just to spend the 150-200 for the peace of mind

    The K+Dcan cable may work in an emergency but from my understanding it is difficult bordering on impossible to rectify this using that which is why i need to use ICOM. I would add to the first post something on this so nobody makes the same mistake that i did and others can learn from it

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    2 out of 2 members liked this post. Yes Reputation No
    I had my Dinan unflashed and it still left behind the Read Lock, even after being reset to stock by the dealer, I could not read my stock flash. There was no Write Lock however, and I went ahead and flashed the BMS backend anyway and had no problems writing. I didn't even have to do a force write. I am MSD81, so it wasn't as fussy as the older ECUs.
    I don't have my stock flash saved since I couldn't read it, but I can always try reseting other ways, or just using another MSD81 stock flash.

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    Repped Monica, good thread bro. Now get that single running so we can see dat spool.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

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    Click here to enlarge

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    Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
    Repped Monica, good thread bro. Now get that single running so we can see dat spool.
    Any day now you'll be seeing datalogs, dynos, and if in time by saturday night, some 1/4 trap speeds as well Click here to enlarge of course still on stock Trans and TC for now so not expecting the world in that department yet.
    2009 335i coupe back to stock...for now

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    Click here to enlarge Originally Posted by Dahwich Click here to enlarge
    I had my Dinan unflashed and it still left behind the Read Lock, even after being reset to stock by the dealer, I could not read my stock flash. There was no Write Lock however, and I went ahead and flashed the BMS backend anyway and had no problems writing. I didn't even have to do a force write. I am MSD81, so it wasn't as fussy as the older ECUs.
    I don't have my stock flash saved since I couldn't read it, but I can always try reseting other ways, or just using another MSD81 stock flash.
    Mine is back to life thanks to alex@alpine motorsports, it wasnt looking good at all, and he had to flash a different file first before restoring it. It was not looking promising and wound up being a big pain in the ass, not your normal dme update. Apparently for anyone running Dinan etc, its common to have odd software id's as well since they use euro bases for the flash so that explains my if80s coming up as australian

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    Can someone elaborate on the difference between full and partial writes? I always write full just because I am unsure. When would a partial write be applicable? If I am just making a quick edit on an identical bin/xdf?

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    Click here to enlarge Originally Posted by manbeer Click here to enlarge
    Can someone elaborate on the difference between full and partial writes? I always write full just because I am unsure. When would a partial write be applicable? If I am just making a quick edit on an identical bin/xdf?
    I can't answer this, but would like to get it answered. I wonder if @V8Bait and chime in here. or @Terry@BMS
    2009 335i coupe back to stock...for now

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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    I can't answer this, but would like to get it answered. I wonder if @V8Bait and chime in here. or @Terry@BMS
    Honestly no idea how the software handles the two since I didn't help code it, I would like to know as well. I use partial writes when I make small changes to maps though, and after full writes I usually reset adaptations. Not sure if it's necessary though.

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    Click here to enlarge Originally Posted by V8Bait Click here to enlarge
    Honestly no idea how the software handles the two since I didn't help code it, I would like to know as well. I use partial writes when I make small changes to maps though, and after full writes I usually reset adaptations. Not sure if it's necessary though.
    Hmm I'd imagine partial writes only affect certain tables but not sure which ones.

    So a full write takes 2 hours? I thought writes were only 10-12 minutes and only the initial read is what takes awhile, am I wrong here?
    2009 335i coupe back to stock...for now

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    1 out of 1 members liked this post. Yes Reputation No
    Full writes are like 12 minutes unless you have an issue, fast writes are about 3

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    noooo monicaaaaaa
    2008 e92 335i: JB4 G5 ISO/BMS back end flash, fbo, e85, inlets, Rb turbos, level 10 valve body + converter, water/methanol.....and a lot more....

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