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Solved ✔ BMW E64 CAS3 flash failed
29-07-2022, 15:33 PM,
Post: #1
Dieusev Offline
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XZBMW  BMW E64 CAS3 flash failed
Hi,

I'm currently facing a big problem, a guy tried to add a key to my car with autel im508 tool, which as I understood tried to downgrade the CAS' software in order to exploit a weakness permiting to add keys.

Downgrade flashing encountered an error mid way, and now communication with the CAS is impossible.

As I understand it can be stuck in programming mode or something else. I've tried resetting ELV counter (ast this is the only error the car was showing) but no luck. When I try to read the CAS Ecu with Carly / bimmer-tool (I don't have my PC with inpa / ista with me), it says that the control unit is not responsive.

What can I do to unlock my situation?

Car is a 2007 BMW E64 650i, without comfort access.

Thank you!
29-07-2022, 16:06 PM,
Post: #2
AZCKNCLLC Offline
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RE: BMW E64 CAS3 flash failed
(29-07-2022, 15:33 PM)Dieusev Wrote:  Hi,

I'm currently facing a big problem, a guy tried to add a key to my car with autel im508 tool, which as I understood tried to downgrade the CAS' software in order to exploit a weakness permiting to add keys.

Downgrade flashing encountered an error mid way, and now communication with the CAS is impossible.

As I understand it can be stuck in programming mode or something else. I've tried resetting ELV counter (ast this is the only error the car was showing) but no luck. When I try to read the CAS Ecu with Carly / bimmer-tool (I don't have my PC with inpa / ista with me), it says that the control unit is not responsive.

What can I do to unlock my situation?

Car is a 2007 BMW E64 650i, without comfort access.

Thank you!
Remove the CAS and read eeprom and flash with bdm programmer. Post here and we can fix for you.
30-07-2022, 08:11 AM,
Post: #3
Gabriel87 Offline
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RE: BMW E64 CAS3 flash failed
(29-07-2022, 15:33 PM)Dieusev Wrote:  Hi,

I'm currently facing a big problem, a guy tried to add a key to my car with autel im508 tool, which as I understood tried to downgrade the CAS' software in order to exploit a weakness permiting to add keys.

Downgrade flashing encountered an error mid way, and now communication with the CAS is impossible.

As I understand it can be stuck in programming mode or something else. I've tried resetting ELV counter (ast this is the only error the car was showing) but no luck. When I try to read the CAS Ecu with Carly / bimmer-tool (I don't have my PC with inpa / ista with me), it says that the control unit is not responsive.

What can I do to unlock my situation?

Car is a 2007 BMW E64 650i, without comfort access.

Thank you!

read eeprom and flash and i help you
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30-07-2022, 10:37 AM,
Post: #4
pereq Offline
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RE: BMW E64 CAS3 flash failed
have you tried to flash with winkfp?
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30-07-2022, 10:42 AM,
Post: #5
BobbySD Offline
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RE: BMW E64 CAS3 flash failed
(30-07-2022, 10:37 AM)pereq Wrote:  have you tried to flash with winkfp?

yep, flashing with kfp will solve it right at the car. Then he can try again smile
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30-07-2022, 19:41 PM,
Post: #6
Dieusev Offline
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RE: BMW E64 CAS3 flash failed
Update: the "key maker" owned up and paid a real professional to put everything back in order. As the car wasn't in my hands I wasn't able to test via winkfp.

Thanks for your help people! Really appreciate it smile
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