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Vida CEM swapping

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Dudde
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Year and Model: 2005 V70 and more
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Post by Dudde »

trashrico8 wrote: 14 Jun 2026, 06:51
Dudde wrote: 14 Jun 2026, 02:23
trashrico8 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
Just sync CEM to ECM if replacing ECM
Either I wasn't awake or the translator reversed the letters.

But it's definitely CEM that I replaced. :lol: :lol:
Then you need to program new keys to CEM if you don't have old data available.

trashrico8
Posts: 7
Joined: 14 Jun 2026, 01:33
Year and Model: 2005 V50 T5
Location: Colmar

Post by trashrico8 »

Dudde wrote: 14 Jun 2026, 07:48
trashrico8 wrote: 14 Jun 2026, 06:51
Dudde wrote: 14 Jun 2026, 02:23

Just sync CEM to ECM if replacing ECM
Either I wasn't awake or the translator reversed the letters.

But it's definitely CEM that I replaced. :lol: :lol:
Then you need to program new keys to CEM if you don't have old data available.
Yes, I did that with a Xhorse MiniKey and a brand new ID48.
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.

dwappertam
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Post by dwappertam »

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 .

Dudde
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Post by Dudde »

trashrico8 wrote: 14 Jun 2026, 08:58
Dudde wrote: 14 Jun 2026, 07:48
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. :lol: :lol:
Then you need to program new keys to CEM if you don't have old data available.
Yes, I did that with a Xhorse MiniKey and a brand new ID48.
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.
So you have written the crypto from CEM to the id48?
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?

trashrico8
Posts: 7
Joined: 14 Jun 2026, 01:33
Year and Model: 2005 V50 T5
Location: Colmar

Post by trashrico8 »

Dudde wrote: 14 Jun 2026, 13:51
trashrico8 wrote: 14 Jun 2026, 08:58
Dudde wrote: 14 Jun 2026, 07:48

Then you need to program new keys to CEM if you don't have old data available.
Yes, I did that with a Xhorse MiniKey and a brand new ID48.
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.
So you have written the crypto from CEM to the id48?
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?
So you have written the crypto from CEM to the id48?

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 :roll:

And you have flashed the CEM and ECM with the new files?

To the CEM with a Xprog
ECM i do nothing
Attachments
IMG_20260514_101356.jpg
Screenshot_2026-05-05-16-48-38-163_com.xhorse.assembly.jpg
Screenshot_2026-04-12-17-30-39-387_com.miui.gallery.jpg
IMG_20260124_194542.jpg

Dudde
Posts: 76
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Post by Dudde »

trashrico8 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 :roll:

And you have flashed the CEM and ECM with the new files?

To the CEM with a Xprog
ECM i do nothing
Write crypto from 9-4, and remember to write each page

Send me files ill check

trashrico8
Posts: 7
Joined: 14 Jun 2026, 01:33
Year and Model: 2005 V50 T5
Location: Colmar

Post by trashrico8 »

Dudde wrote: 14 Jun 2026, 22:15
trashrico8 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 :roll:

And you have flashed the CEM and ECM with the new files?

To the CEM with a Xprog
ECM i do nothing
Write crypto from 9-4, and remember to write each page

Send me files ill check

i tested writing crypto from 9-4 ,it's the same :cry:

I attached the files , thanks for watching and helping me
Attachments
v50 T5.zip
(1.46 KiB) Downloaded 78 times

dwappertam
Posts: 14
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Post by dwappertam »

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

trashrico8
Posts: 7
Joined: 14 Jun 2026, 01:33
Year and Model: 2005 V50 T5
Location: Colmar

Post by trashrico8 »

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
I simply took the .bin file and loaded it using my Xprog.

What is the correct procedure?
How do I verify the checksum ?

Yariy
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Post by Yariy »

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.
IMG20260511123358.jpg
IMG20260511123358.jpg (247.91 KiB) Viewed 954 times
IMG_20260511_124619.jpg
IMG_20260511_124619.jpg (107.84 KiB) Viewed 954 times

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