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BMW F11 Cas4 repair.
06-12-2025, 09:55 AM,
Post: #1
Valery63 Offline
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BMW F11 Cas4 repair.
Hi.
The CAS unit failed. D-flash is lost.
I purchased a used unit with the same KA number and the original.
The D-flash of the new unit is set to a different key frequency.
I need help changing the D-flash to 868 MHz.
Thanks.


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06-12-2025, 16:31 PM,
Post: #2
al70 Online
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RE: BMW F11 Cas4 repair.
i think you need to post the eep to change frequency
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06-12-2025, 18:14 PM,
Post: #3
Gabriel87 Offline
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RE: BMW F11 Cas4 repair.
(06-12-2025, 09:55 AM)Valery63 Wrote:  Hi.
The CAS unit failed. D-flash is lost.
I purchased a used unit with the same KA number and the original.
The D-flash of the new unit is set to a different key frequency.
I need help changing the D-flash to 868 MHz.
Thanks.

here
new.rar
File Type: .rar
Downloaded: 2 times
Size: 5.71 KB

I help you please rate and thank you.
Reputation: +2 - al70 [+1] , Valery63 [+1]
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Yesterday, 08:39 AM,
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ahmadarifai Offline
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RE: BMW F11 Cas4 repair.
Frequency in CAS has no effect on remote function. Diversity antenna has. if you leave it as is it will not affect anything.
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Yesterday, 09:44 AM,
Post: #5
Valery63 Offline
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RE: BMW F11 Cas4 repair.
I also saw these values at these addresses. 
I changed the values for the 1L15Y mask in the CAS4 calculator and compared them. 
The checksum is not adjusted in this case?
The 868 MHz dump is needed for writing the key. VVDI doesn't accept the 868 MHz key for a 315 MHz dump.
Thanks.
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Yesterday, 10:35 AM,
Post: #6
ahmadarifai Offline
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RE: BMW F11 Cas4 repair.
Here modified to 868

please give rep + thanks


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CAS4(5M48H)868--D-FLASH.rar
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