[Bimmer540]

Faster find needed dflash write ISN in cas dflash, reset key,
make key and start car
CHANGE MILEAGE
CHANGE VIN

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What is model and year?

How to do that?

F10 2010

Do you have external programer like xprog,vvdiprog...etc ?you can program same part no. P-flash which is corupted in your case...or you can try program again with esys

No I don't have these programs.

I can not connect to E-sys because kl15 is not working.

[forkade]

Look here maybe help you
and ask for Dflash
Protection and restore
Data flash and program flash preventive reading guarantee CAS4 restore any time. Large program flashes database available on demand for fixing ECUs which have been damaged by other programmers.
https://www.lacartech.com/products/mdp-xep100-mrppad

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for kl15
you have test wiht warning

[Bimmer540]

Look here maybe help you
and ask for Dflash
Protection and restore
Data flash and program flash preventive reading guarantee CAS4 restore any time. Large program flashes database available on demand for fixing ECUs which have been damaged by other programmers.
https://www.lacartech.com/products/mdp-xep100-mrppad

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for kl15
you have test wiht warning

What do you mean with test with warning?

[forkade]

Press the warning button to activate obd2
for acces diagnotics

[atomantmk]

When you make update of CAS key must be at least 3 meters away from car because all new cars are with keyless.
Try to flash once again with ISTA or check with ISTA+ if keys are locked because sometimes CAS lock all keys.