CGDI BMW makes spare keys for BMW CAS3 in what safest method?

Tool:

I have one new CGDI BMW key programmer

Car model and year:

BMW X5 ( 2009 ) and BMW X5 ( 2012 ), both I think are CAS3.

Purpose:

Make some spare keys in safest method

My question:

If I will make a complete backup with VVDI PROG of the cas  ( eeprom and flash ) will be safe to make keys ? Even need to downgrade ? because I don’t want to brick the cars.

And another thing , can I make on bench the key ? I saw if I connect CAS PIN 34 to 12V and OBD 16 , CAS PIN 12 to gnd and 4 5 to obd and the can line’s can work on bench ? 

Chief engineer replied:

Safest option is to read CAS eeprom with a tool like VVDI prog, hextag, cg pro, etc. Load CAS dump in CGDI and make key. Encrypted cas will require either a working key or DME ISN. Working from dump is safe, no downgrade needed.

My another question:

So , even is an CAS3+ ISTA P , if I will read the eeprom and flash with VVDI PROG , can make key from dump ? And with working key just read the ISN from the key ?

Chief engineer replied:

correct, even if cas is cas3+ ISTAP you can simply just read cas with vvdi Pro to get eeprom and can make key from that with working key (if no working key then isn from dme).

Enjoy!

www.obd2shop.co.uk

About Sales OBD2shop.co.uk 1566 Articles
OBD2shop.co.uk specializes in manufacturing and exporting car & truck OBD OBD2 EOBD diagnostic tools to worldwide.