Yes both

You just need to overwrite 206751 delete nothing or add nothing, works best with HXD

Your code should be: 23 42 90 61 52 76

Not the best read, some errors still but should work for this purpose...

Maybe to long wires or something...

You should just copy paste the binary data like this, you saved the txt file

HXD uses left and right window, you need to paste the data into the left window for binary data, you pasted it into the right for ascii data...

From what i see the file looks good

The beginning looks good, but later something goes wrong, maybe power issue?

Copy the bytes into HXD and save as bin to get your file...

This looks perfect...
I power the cem by 12V to its connector...

Think you have some connection error, data doesn't look right to me if you read from 0x0000 you should get something like this: 00000000 00 FF D2 00 00 00 08 00 00 00 04 24 00 00 04 24 .ÿÒ........$...$ 00000010 00 00 04 24 00 00 04 24 00 00 04 24 00 00 04 24 ...$...$...$...$ 00000020 00 00 04 24 00 ...

When you connect the CEM like in the sample i provided before, it won't fall asleep, it stays on and send all the time. It just falls asleep if you don't connect the wire for ignition lock. You should hear something clicking if you power the cem. You have connected this both big pins where the big g...

Here this is minimum connection to CEM on bench. https://www.matthewsvolvosite.com/forums/download/file.php?id=74839 On D connector: Green: HS CAN-L to pin 14 OBD White: HS CAN-H to pin 6 OBD Grey (pin 6 ): GND Yellow (pin 8 ): +12V Blue (pin 15 ): +12V Also it needs +12V on the both big connectors ...

You need to read the errors first to be able to clear