how to: boot mode your ecu

[k0mpresd]

this has to be done to read/write some ecus. mine can be flashed over obd in the car. but boot mode on the bench is way faster.

hold a grounded 1k resistor (or paperclip, it works) to the solder pad circled in red for 3-4 seconds when first powering on the ecu.

pictured is 4b0 906 018p ecu. your ecu may be different. click the picture to make it bigger if your browser resizes it.

[317ssayzarc]

Wtf Ian, your on top of this ish man...

You should combo it into one thread and have Jim sticky it

[slopoke]

what?"boot mode on the bench is way faster"

[Yaktizzle417]

Explain son!

[UN-PIMP-Z-A4]

AND CUMCUMBERS taste better pickled... well sometimes...

[k0mpresd]

also, disregard the socket. normally there would just be an eprom there. :p

[slopoke]

wtf is goin on?

[andyrew]

We have no clue what your talking about!

[k0mpresd]

some people do. or some may remember seeing this post somewhere along the line.

[Don Supreme]

The responses are so funny....

[maxspeed]

The responses are so funny....

x 2, non techies crack me up

[audiness]

the details are overwhelming

[NorCal1.8T]

x 2, non techies crack me up

HOW ABOUT, instead of showing off your expertise, you enlighten us "non" techies, and teach us what the hell is posted? Sound good? Wasnt this forum created to spread the knowledge on our cars?

[slopoke]

lol your ecu says siemen

[k0mpresd]

HOW ABOUT, instead of showing off your expertise, you enlighten us "non" techies, and teach us what the hell is posted?

the first post has all the needed details. first line, first sentence.

[slopoke]

i just read it 3x more times and i still dont get it...

[k0mpresd]

whats not to get?

[slopoke]

BOOT MODE?

[NorCal1.8T]

what do you want to read/write on the ecu?

[tamadrumr88]

what good is intelligence if you cant explain it in basic terms? being smart is taking something difficult and being able explain it to a bunch of idiots

[k0mpresd]

what do you want to read/write on the ecu?

the eprom.

[2001S4NY]

buy a marker and write on it :D

[k0mpresd]

buy a marker and write on it :D

[Kyle H]

So, if I'm reading this right... you found out how to flash pre-99.5 and v6 ecus?

[317ssayzarc]

You two are asses!

[Don Supreme]

So, if I'm reading this right... you found out how to flash pre-99.5 and v6 ecus?

wrong.

[chris164935]

wrong.

So, how many more guesses do we get before you tell us the correct answer?
What is the application? ME5? ME7? 2000 is ME5 right? Does doing this enable us to do to our ECMs what you are doing to yours currently (assuming we have the same software and hardware)?

[t1demont1]

This means he can flash, or alter me7 ecus now. EG: he could probably take any flashed m7 ecu and copy the tune to another me7 ECU... atleast I think

[dougyfresh]

These responses are funny.

Nice work Ian. Too much time on your hands. Think you need a job

[Don Supreme]

and copy the tune to another me7 ECU

Thats not the intended purpose of doing this stuff. Its not about copying another persons work.

[k0mpresd]

and 2000 is me7.

this thread is really funny.

[chris164935]

Oh, doing this allows you to flash your ECM without being installed in the car itself...

[k0mpresd]

Oh, doing this allows you to flash your ECM without being installed in the car itself...

thats not exactly the point.

[andyrew]

I know what boot mode is, and I am somewhat a techie, but what would be the purpose of running the ECU in boot mode?

[AudiA4_20T]

lol fine i feel bad

[NorCal1.8T]

An EPROM, or Erasable Programmable Read-Only Memory, is a type of memory chip that retains its data when its power supply is switched off. In other words, it is non-volatile. It is an array of floating-gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in digital circuits. Once programmed, an EPROM can be erased only by exposing it to strong ultraviolet light. That UV light usually has a wavelength of 235nm (for optimum erasure time) and belongs to the UVC range of UV light. EPROMs are easily recognizable by the transparent fused quartz window in the top of the package, through which the silicon chip can be seen, and which permits UV light during erasing.

[GetBoosted84]

That's pretty damn cool. Good job!

[k0mpresd]

An EPROM, or Erasable Programmable Read-Only Memory, is a type of memory chip that retains its data when its power supply is switched off. In other words, it is non-volatile. It is an array of floating-gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in digital circuits. Once programmed, an EPROM can be erased only by exposing it to strong ultraviolet light. That UV light usually has a wavelength of 235nm (for optimum erasure time) and belongs to the UVC range of UV light. EPROMs are easily recognizable by the transparent fused quartz window in the top of the package, through which the silicon chip can be seen, and which permits UV light during erasing.

yea. except the last part of your post is a little out of date. eproms havent had uv holes for a while now. thats old skool (mk3 vw). :p

and if you need to google "what is an eprom?" then i dont think this thread is for you.

[Don Supreme]

An EPROM, or Erasable Programmable Read-Only Memory, is a type of memory chip that retains its data when its power supply is switched off. In other words, it is non-volatile. It is an array of floating-gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in digital circuits. Once programmed, an EPROM can be erased only by exposing it to strong ultraviolet light. That UV light usually has a wavelength of 235nm (for optimum erasure time) and belongs to the UVC range of UV light. EPROMs are easily recognizable by the transparent fused quartz window in the top of the package, through which the silicon chip can be seen, and which permits UV light during erasing.

nice copy and paste without giving source.

[bassed]

and 2000 is me7.

this thread is really funny.

Indeed, it's been providing quite a bit of laughs. I am so happy to see you tackling this all alone for the most part, keep it up you're making progress each day it seems. I have a feeling though Ian it's all about to go beyond my realm of knowledge at the rate you're progressing.