Vida CEM swapping

gavik · Post by **gavik** » 25 Dec 2025, 11:16

Dragoz001 wrote: 25 Dec 2025, 09:26OM?

OpenMoose

Post by **vtl** » 25 Dec 2025, 11:30

gavik wrote: 25 Dec 2025, 11:16
Dragoz001 wrote: 25 Dec 2025, 09:26OM?
OpenMoose

"30-second no-solder recovery of CEM-B pin is being tested " interesting...

Treur · Post by **Treur** » 26 Dec 2025, 06:28

Does anyone have DHA files for the p3 platform? I need the SCU pairing procedure.

Treur · Post by **Treur** » 26 Dec 2025, 06:34

vtl wrote: 25 Dec 2025, 11:30
gavik wrote: 25 Dec 2025, 11:16
Dragoz001 wrote: 25 Dec 2025, 09:26OM?
OpenMoose
"30-second no-solder recovery of CEM-B pin is being tested " interesting...

I can get a PIN code in 12 seconds. However, it's useless for read/write (it can be read, of course, but very slowly). It's much easier to work without a PIN code using OBD. For example, TechNest.

Post by **vtl** » 26 Dec 2025, 07:06

Treur wrote: 26 Dec 2025, 06:34 I can get a PIN code in 12 seconds. However, it's useless for read/write (it can be read, of course, but very slowly). It's much easier to work without a PIN code using OBD. For example, TechNest.

You can extract the CEM-B pin code in 12 seconds?

Treur · Post by **Treur** » 26 Dec 2025, 07:09

vtl wrote: 26 Dec 2025, 07:06
Treur wrote: 26 Dec 2025, 06:34 I can get a PIN code in 12 seconds. However, it's useless for read/write (it can be read, of course, but very slowly). It's much easier to work without a PIN code using OBD. For example, TechNest.
You can extract the CEM-B pin code in 12 seconds?

Yes

P.S. I Lied... 13 seconds.

This would make some sense if CEM allowed loading and executing SBL with a PIN code other than 0000000000

Dudde · Post by **Dudde** » 26 Dec 2025, 07:38

Treur wrote: 26 Dec 2025, 06:34
vtl wrote: 25 Dec 2025, 11:30
gavik wrote: 25 Dec 2025, 11:16

OpenMoose
"30-second no-solder recovery of CEM-B pin is being tested " interesting...
I can get a PIN code in 12 seconds. However, it's useless for read/write (it can be read, of course, but very slowly). It's much easier to work without a PIN code using OBD. For example, TechNest.

So your saying technest can read/write the CEM without pincode? Even the keys and sync data?

Dudde · Post by **Dudde** » 26 Dec 2025, 07:39

vtl wrote: 26 Dec 2025, 07:06
Treur wrote: 26 Dec 2025, 06:34 I can get a PIN code in 12 seconds. However, it's useless for read/write (it can be read, of course, but very slowly). It's much easier to work without a PIN code using OBD. For example, TechNest.
You can extract the CEM-B pin code in 12 seconds?

Works on 90% on CEM B modules

Treur · Post by **Treur** » 26 Dec 2025, 07:40

Dudde wrote: 26 Dec 2025, 07:38
Treur wrote: 26 Dec 2025, 06:34
vtl wrote: 25 Dec 2025, 11:30
"30-second no-solder recovery of CEM-B pin is being tested " interesting...
I can get a PIN code in 12 seconds. However, it's useless for read/write (it can be read, of course, but very slowly). It's much easier to work without a PIN code using OBD. For example, TechNest.
So your saying technest can read/write the CEM without pincode? Even the keys and sync data?

Absolutely
MC68376 + 28F400B5 — 29bit, Flash RW. [No PIN required]

Dudde · Post by **Dudde** » 26 Dec 2025, 07:41

Treur wrote: 26 Dec 2025, 07:40
Dudde wrote: 26 Dec 2025, 07:38
Treur wrote: 26 Dec 2025, 06:34

I can get a PIN code in 12 seconds. However, it's useless for read/write (it can be read, of course, but very slowly). It's much easier to work without a PIN code using OBD. For example, TechNest.
So your saying technest can read/write the CEM without pincode? Even the keys and sync data?
Absolutely

How long does reading and writing take?