Audi A4/B8 - BCM2 problem

[vopi]

Please read post #12


Hi,

I have problem with original BCM2 ECU 8K0907064N and I have v 8K0907064GD, but
8K0907064N has 70F3380 and external eeprom 95320
8K0907064GD has 70F3634 without external eeprom

Is it possible to clone immo data from the dump - from old BCM to the new one? I red both ecus by smok Jtag programmer.
or I have to buy the same BCM2 ECU? For now I don´t know if the SW from old ECU is correct - is it possible to check the sump??

thanks for help

[rafal]

BCM - body control module
ECU - engine control unit

[tothzsolt]

yes i can clone you BCM2

THNX BUTTON AND REPUTATION FOR HELP COLLEGUE...........PASS PM

[vopi]

Thanks but not work, I think the new BCM2 is to modern than old BCM.

[tothzsolt]

I know where I went wrong, test this and let me know

[vopi]

My old BCM2 (8K0907064N) has HW problem and must be replaced. So, I have 8K0907064GD which is from the same car but year 2012, old car is 2009.
So my question was if it is possible to clone immo data from old BCM2 to new One.
I used your modification of dataflash to new BCM2 (...064GD) and I tried it in the car but BCM2 didn´t recognize the key a ELV didn´t unlock the steering wheel - still problem with immo.

So my first question was if it is possible to clone immo data from ...064N to ...064GD. BCMs have diferent NEC processor

[tothzsolt]

I can't see it now, try this virgin file and learn the car again

[vopi]

it is not possible because old BCM has 70F3380 with 524kb of flash and new BCM has 70F3634 with 786kb of flash.

[vopi]

Ok, how to learn this virgin BCM2 to the car without online access?

I have vcds, vcp and fvdi.

[geeroam]

what is the problem with old bcm?

[vopi]

No comunication with 46 and 05 unit. When I tried another BCM2 All works Fine but problem with Immo. I tried to resolder cpu and other IOs but still the same problem. I think this is HW problem inside BCM2. SW from old BCM looks fine.

[vopi]

I am crazy about it !

Now I bought BCM2 with the same number 8K0907064N and when I upload flash and eeprom from old unit BCM2 doesn´t work. In vcds I see in ECU ID mishmash.
When I put back backup of new BCM all works fine but problem with immo. PCB board of new BCM2 looks the same like board of old BCM2, same processor, same eeprom.

So How can I make clone of this unit if I have the same product code. I though that I upload flash and eeprom and clone is done.
here is backup of new and old BCM2 with the same code.
old is 8K0907064N 0134 H70
new is 8K0907064N 0145 H80
can be problem with the number 0134 and 0145? these are SW/calibration number?

thanks for help

[trinicolin]

I am crazy about it !

Now I bought BCM2 with the same number 8K0907064N and when I upload flash and eeprom from old unit BCM2 doesn´t work. In vcds I see in ECU ID mishmash.
When I put back backup of new BCM all works fine but problem with immo. PCB board of new BCM2 looks the same like board of old BCM2, same processor, same eeprom.

So How can I make clone of this unit if I have the same product code. I though that I upload flash and eeprom and clone is done.
here is backup of new and old BCM2 with the same code.
old is 8K0907064N 0134 H70
new is 8K0907064N 0145 H80
can be problem with the number 0134 and 0145? these are SW/calibration number?

thanks for helpProblem with CS.

Sent from my SM-G930F using Tapatalk

[trinicolin]

Check PM

Sent from my SM-G930F using Tapatalk

[vopi]

problem with checksum? you mean checksum of flash?
because if I leave original flash in new BCM and put old eeprom from demaged BCM2, BCM2 working fine - ID in diag is OK but i have problem with immo.

[okura]

if you need clone BMC, send me PM

[ricked]

problem with checksum? you mean checksum of flash?
because if I leave original flash in new BCM and put old eeprom from demaged BCM2, BCM2 working fine - ID in diag is OK but i have problem with immo.

CS = Component security

[vopi]

Why with component security if i move full backup from old to new bcm2.

[ricked]

Why with component security if i move full backup from old to new bcm2.

clone BCM2 needs special prepare the files, take the offer from okura he offers to help you

maybe i can help with it also but im not sure i will succeed

[chiorbeq]

For this job need tools and knowledge!Copy paste not work!

[vopi]

ok, it looks you are right but what recognize that I uploaded flash and eeprom from another ECU? I thought that there is only flash of proc and eeprom.

[ricked]

For this job need tools and knowledge!Copy paste not work!

yes i know....

[chiorbeq]

Because IC have ID different from one to other,Immo data are encrypted at IMMO5!Copy and paste from one unit to other is not a good solution!What do you don't understand?

[chiorbeq]

Can use this!https://info.autokey.by/ and need to pay for it!Or buy SMOK tool or AVDI !I make this by OBD with SMOK!

[ricked]

ok, it looks you are right but what recognize that I uploaded flash and eeprom from another ECU? I thought that there is only flash of proc and eeprom.

try and report

ask pass in pm

[vopi]

problem solved by Okura.
@Ricked thanks for help your mod was the same like Okuras mod and fully working.

[ricked]

problem solved by Okura.
@Ricked thanks for help your mod was the same like Okuras mod and fully working.

glad to help

[pablo1971]

So can i old BCM be reprogrammed online and cs removed...?????