Then you need to program new keys to CEM if you don't have old data available.trashrico8 wrote: 14 Jun 2026, 06:51Either I wasn't awake or the translator reversed the letters.Dudde wrote: 14 Jun 2026, 02:23Just sync CEM to ECM if replacing ECMtrashrico8 wrote: 14 Jun 2026, 01:49
I'm having the same problem on my V50 T5.
The ECM is completely fried.
I'm trying to reconfigure an ECM, but I'm stuck on the key learning process.
The ID48 is never recognized by the ECM despite using the ME9.0 Synchronization Utility software
But it's definitely CEM that I replaced.![]()
![]()
Vida CEM swapping
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Dudde
- Posts: 76
- Joined: 22 Jan 2020, 11:19
- Year and Model: 2005 V70 and more
- Location: Finland
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trashrico8
- Posts: 7
- Joined: 14 Jun 2026, 01:33
- Year and Model: 2005 V50 T5
- Location: Colmar
Yes, I did that with a Xhorse MiniKey and a brand new ID48.Dudde wrote: 14 Jun 2026, 07:48Then you need to program new keys to CEM if you don't have old data available.trashrico8 wrote: 14 Jun 2026, 06:51Either I wasn't awake or the translator reversed the letters.
But it's definitely CEM that I replaced.![]()
![]()
I copied the CryptoKey into the ID48 and entered the ID48 number into the synchronization software.
But the car doesn't recognize the key. I'm stuck here; I don't know where I'm going wrong.
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dwappertam
- Posts: 14
- Joined: 02 Jan 2025, 05:27
- Year and Model: 2001 S60 P2
- Location: On this planet
- Has thanked: 3 times
Did you transfer anything on the new CEM beside a transoponder key, are CEM matching HW and so on . Did u use a fresh ECM write or Maybe the CEM still has a previous Vin in it . but u can copy syncronisation blok and write it in de ECM .
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Dudde
- Posts: 76
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- Year and Model: 2005 V70 and more
- Location: Finland
- Has thanked: 16 times
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So you have written the crypto from CEM to the id48?trashrico8 wrote: 14 Jun 2026, 08:58Yes, I did that with a Xhorse MiniKey and a brand new ID48.Dudde wrote: 14 Jun 2026, 07:48Then you need to program new keys to CEM if you don't have old data available.trashrico8 wrote: 14 Jun 2026, 06:51
Either I wasn't awake or the translator reversed the letters.
But it's definitely CEM that I replaced.![]()
![]()
I copied the CryptoKey into the ID48 and entered the ID48 number into the synchronization software.
But the car doesn't recognize the key. I'm stuck here; I don't know where I'm going wrong.
And you have written the pages in correct order? I assume you have unlocked the chip correctly
And you have flashed the CEM and ECM with the new files?
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trashrico8
- Posts: 7
- Joined: 14 Jun 2026, 01:33
- Year and Model: 2005 V50 T5
- Location: Colmar
So you have written the crypto from CEM to the id48?Dudde wrote: 14 Jun 2026, 13:51So you have written the crypto from CEM to the id48?trashrico8 wrote: 14 Jun 2026, 08:58Yes, I did that with a Xhorse MiniKey and a brand new ID48.Dudde wrote: 14 Jun 2026, 07:48
Then you need to program new keys to CEM if you don't have old data available.
I copied the CryptoKey into the ID48 and entered the ID48 number into the synchronization software.
But the car doesn't recognize the key. I'm stuck here; I don't know where I'm going wrong.
And you have written the pages in correct order? I assume you have unlocked the chip correctly
And you have flashed the CEM and ECM with the new files?
Yes, I even tested an XT27.
And you have written the pages in correct order?
I think, i tested the 2 order
I assume you have unlocked the chip correctly
Maybe not
And you have flashed the CEM and ECM with the new files?
To the CEM with a Xprog
ECM i do nothing
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Dudde
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- Location: Finland
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Write crypto from 9-4, and remember to write each pagetrashrico8 wrote: 14 Jun 2026, 08:58
Yes, I even tested an XT27.
And you have written the pages in correct order?
I think, i tested the 2 order
I assume you have unlocked the chip correctly
Maybe not![]()
And you have flashed the CEM and ECM with the new files?
To the CEM with a Xprog
ECM i do nothing
Send me files ill check
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trashrico8
- Posts: 7
- Joined: 14 Jun 2026, 01:33
- Year and Model: 2005 V50 T5
- Location: Colmar
Dudde wrote: 14 Jun 2026, 22:15Write crypto from 9-4, and remember to write each pagetrashrico8 wrote: 14 Jun 2026, 08:58
Yes, I even tested an XT27.
And you have written the pages in correct order?
I think, i tested the 2 order
I assume you have unlocked the chip correctly
Maybe not![]()
And you have flashed the CEM and ECM with the new files?
To the CEM with a Xprog
ECM i do nothing
Send me files ill check
i tested writing crypto from 9-4 ,it's the same
I attached the files , thanks for watching and helping me
- Attachments
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- v50 T5.zip
- (1.46 KiB) Downloaded 78 times
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dwappertam
- Posts: 14
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- Year and Model: 2001 S60 P2
- Location: On this planet
- Has thanked: 3 times
Yes there is the problemTo the CEM with a Xprog
ECM i do nothing
the synchro is problaby not matching in the ecm. Take a backup and check it. Did you correct the checksums ass wel
ECM i do nothing
the synchro is problaby not matching in the ecm. Take a backup and check it. Did you correct the checksums ass wel
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trashrico8
- Posts: 7
- Joined: 14 Jun 2026, 01:33
- Year and Model: 2005 V50 T5
- Location: Colmar
I simply took the .bin file and loaded it using my Xprog.dwappertam wrote: 17 Jun 2026, 10:34 Yes there is the problemTo the CEM with a Xprog
ECM i do nothing
the synchro is problaby not matching in the ecm. Take a backup and check it. Did you correct the checksums ass wel
What is the correct procedure?
How do I verify the checksum ?
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Yariy
- Posts: 48
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- Year and Model: XC90
- Location: Moskow
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Maybe I'm not on time))) But why don't you try to subtract microcontrollers using Xprog? I had the same story and I calmly read them on the table. I cut off the burnt part of the printed circuit board.
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