Vida CEM swapping

[solitaire]

.....Q2. Third CAN Bus transciver needed for the K-Line?......

for k-line you need k-line transceiver, (something like this https://datasheetspdf.com/pdf-file/1425 ... cs/L9637/1)
but then need modify schematic for logical voltage level...

[blasaab]

i have a new question. i need to extract the bin file from my cem and send to vdash. Volvo S60 2008 p2 L shaped cem i think its Renesas M32C chip.
best or easiest way to do it? at the moment i only have vida dice clone and a Kvaser Leaf usb to can adapter. Br Richard

[vtl]

Send to them for what? For PIN extraction? We can teach you how to find it yourself in your .bin file Taking it out requires opening the CEM and soldering thin wires to PCB near Renesas chip. Do you want to go this way? Otherwise buying Teensy and one or two CAN transceivers is much safer.

[blasaab]

Hi we have change headlamp from xenon to halogen. According to Volvo specialist its not possible with Vida. Its possible with vdash but the cem is locked and they need bin file or the cem sent over to them.
I have looked att the teensy chip and downloaded the I/O terminal software but you also needed the pin there.

[vtl]

Yes, in this thread we're discussing how to get the PIN over OBD-II. You need less skills in electronics in order to assemble that rather device and have the CEM cracked while it remains in car than to read the flash using a programmer.

https://github.com/vtl/volvo-cem-cracker

[blasaab]

And you use teensy as programer to. Setting Up teensy chip looks quite easy. Is there a guide for getting source code to teensy like in aurdino soft?

[vtl]

The project utilizes a classic timing attack and recognizes the valid bytes in the sequence. It is not a programmer. You don't have to do read the flash, it will find the pin code as is (for ~90% of CEMs), just plug it into OBD-II port.

[blasaab]

Thanks will order parts today for teensy. But to change parameter in cem efter you got the pin is it only vdash you can use if you only have a Volvo Dice?

[vtl]

Yes, for VDASH you need a DiCE. And CASH.

[repair]

Yes, in this thread we're discussing how to get the PIN over OBD-II. You need less skills in electronics in order to assemble that rather device and have the CEM cracked while it remains in car than to read the flash using a programmer.

https://github.com/vtl/volvo-cem-cracker

Using cracker he can get a pin, enter it into I/O Terminal and read and record the flash.