Reusing EIS is OK, what about key ??

[Eskerra]

Hi, good evening to all.
Its all well known we can reuse an used EIS, into another car. Many tools allow that, just having EIS data from original one, the onewe want to change, then virginize the one we want to reuse, and put data back from original one.

OK, what can we do in this case, we have an used EIS with its original key.
That EIS is going to change a faulty one in one car, thats OK, but what can be done with the key ??
Can we reuse it later as well, maybe in one other car??
I know that if the key its a NEC type one, OK, we can delete that NEC and put it into status 21DF.
But what about if key is a BGA one??
Can these be virginized as well??
I have one kit (EIS and key) with rom version 75 BGA. And doubt is if I use EIS in one car, can use key in one other diferent car ??
Tool to work with, will be AVDI.

Thanks so much.
Regards

[vageric]

not possible to renew BGA keys.

[benzstop]

you can reuse bga key if key pass is known with avdi

[Eskerra]

Thanks for answer.
Can you please explain a bit more, how should it be done?
As said in my first post, I want to reuse the existing working key from a EZS, into another car.
I know pass from its EZS, how to know then "key pass"?
And once known, how to proceed to program that key in the other car?

Would appreciate that info.
Thanks a lot.
Regards