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by ZRimaZ
29 Nov 2021, 14:02
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Re: Vida CEM swapping

True, checksum is simple 8 bit checksum of the block, starting from 0x8102 with block lenght, which is at 0x8100
by ZRimaZ
07 Dec 2021, 11:30
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Re: Vida CEM swapping

But anyway, if you need biaries from any volvo cem, let me know. Or other questions, just pm me. I know something a little bit ;)
by ZRimaZ
08 Dec 2021, 02:44
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Re: Vida CEM swapping

I have a lot of p3 bins. I do not know where then pin is located - there was no need for me until now to analyse it, but I can extract pin from flash in other ways... If you can, figure out the location of the PIN in .bin. Then parse the .bin files to extract the PINS. Publish the list of PINs. Per...
by ZRimaZ
11 Dec 2021, 03:32
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Re: Vida CEM swapping

Tonight I had nice time looking thru almost all P1 files I have. Strange, but only those HW PN are in my collection. HW PN, BIN PIN, PIN 8690719, 313645345203, 034536523134 8690720, 546199294020, 209961405429 8690722, 570845684655, 554508465768 30765015, 347164281322, 226471133428 30765471, 83900414...
by ZRimaZ
15 Mar 2022, 13:48
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Re: Vida CEM swapping

gnalan wrote: 15 Mar 2022, 13:19 Has anyone tried this on the CEM-B to read the eeprom to get the pin from the .bin file?
This one https://www.usbjtag.com/jtagnt/ulinknt.php is working very well without desoldering of flash chip
by ZRimaZ
15 Mar 2022, 14:35
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Re: Vida CEM swapping

I haven't taken my CEM apart, or any CEM, so I don't know exactly what's inside. How are the connections made? For $65 that doesn't seem to be a bad price to get the CEM pin. Thanks for the info. It is very easy - all info you can find on their forum https://www.usbjtag.com/phpbb3/viewtopic.php?f=2...
by ZRimaZ
09 Apr 2022, 12:45
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Re: Vida CEM swapping

IO terminal has no function to read/enter PIN foe CEM-B. As I wrote before, the flash of 29f400 has to be modified/patched either with io terminal or manually. The "patch" is simple replacing of original pin with FF. The pin is located at address 0x4000 or 0x6000, depending on cem version....
by ZRimaZ
10 Apr 2022, 01:04
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Re: Vida CEM swapping

As far I know, there is only checksum for config block, not for whole flash
by ZRimaZ
11 Jun 2022, 12:00
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Re: Vida CEM swapping

oscilloscope wrote: 11 Jun 2022, 11:59
probably would help if i where to look at the correct file :roll:
:D
by ZRimaZ
12 Jun 2022, 01:12
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Re: Vida CEM swapping

It seems my repaired alarm siren is again leaking and again draining the main battery. I want to throw it away, the car is never locked anyways. Don't what to see the immobilizer warning message on every start, though. What are my options? Is it a bit toggle in CEM's car config? I may have finally ...