NefMoto

From bettle 2000 I can't seem to read the 24c02 chip with my willem programmer, what are people using to read it?

06a 906 018 ej

Remove chip. Read it that way. I use GQ-4x.

Oh so no other way?
With 95040 chip using test clip with willem I can read/write
I hate soldering lol

Desoldering is the most reliable way. Other methods are/can be hit or miss.

24C02 and other I2C similar serial eeproms are really tricky to read or write in circuit (ICSP). The main problem is it master-slave configuration and it bus timing associated for read and writing procedures. The best result until now, is desolder, work on it and re-solder.

with clip you may read it 10  times and you will get at least 3 different versions.... :D

I'm reading and writing a 24c02 in circuit in an Alfa Romeo Bosch M2.10.x ECUs, using a Willem eprom without any problems. I guess it depends on the electronic design whether you can read it in circuit or not.

In my M3.2 ecu I was not able to read on the board, unsoldering did the trick. Also with Willem programmer.

I have tryied several circuits & options without luck. Check it out:
http://www.oocities.org/phiddipe/p2.htm (http://www.oocities.org/phiddipe/p2.htm)
http://24c02tvyxboxeepromonboardprogramador.blogspot.com/2011/01/eeprom-24c02-xbox-y-tv-lector-y.html (http://24c02tvyxboxeepromonboardprogramador.blogspot.com/2011/01/eeprom-24c02-xbox-y-tv-lector-y.html)
http://www.apriliaforum.com/forums/showthread.php?259122-Where-is-the-mileage-data-stored-Had-the-battery-disconnected-and-now-00000000&s=a34603336f3f05899ae03dbe828678c6&p=3240548&viewfull=1#post3240548 (http://www.apriliaforum.com/forums/showthread.php?259122-Where-is-the-mileage-data-stored-Had-the-battery-disconnected-and-now-00000000&s=a34603336f3f05899ae03dbe828678c6&p=3240548&viewfull=1#post3240548)
http://www.brodyradford.com/2011/01/hacking-the-dealextreme-gprs-modem/ (http://www.brodyradford.com/2011/01/hacking-the-dealextreme-gprs-modem/)
http://qcwo.com/technicaldomain/working-with-immobilizer-software-for-virginizing-files (http://qcwo.com/technicaldomain/working-with-immobilizer-software-for-virginizing-files)

Inclusive I tried shorting processor xtal without luck. I think that problem in M3xx/M59x boards is timing.

Hi i've been trying to read a 24c02 from a m5.9.2 from a vw cabrio. It just reads all 00's  i've tried the willem and a carprog. i'm trying to tune out the immobilizer.  Any bits of wisdom ??  thanks!!

in circuit or desoldered?

pictures?

did you pick the right chip from the pcb?

Some of this old ECUs have 93C46 EEPROM
With number B58 on it

I tried to use the car prog to read it in on the board I also tried probing it using a willem programmer. I didn't have success so I removed it and tried to read. Not having luck yet.
( Having problems with posting this)

Thanks I'm trying to post some pics

Cant seem to post pictures it is a 037 906 018 C   M5.9.2  V02 

Try again

yay apparently pics were too big.

Hey!! I got it to read by soldering the chip to a test board and hooking my leads to it. Im working on immo off but wonder if i can get sone help with it please!

immo off
https://mega.nz/file/93Iw2KgA

http://nefariousmotorsports.com/forum/index.php?topic=10415.msg137720#msg137720

do it your own, its easy

Thanks for you help!!