BMW VVDI2, User Manual, Page: 35 / 50

BMW TOOL User Manual
Ver: 2.0
35
7.3. File generation key CAS3+ (include all key lost)

Attention: Please refer to Chapter 6.1 for the detailed description of this
process

Menu->File generation key->CAS3+(0L15Y), follow the prompts to load EEPROM
dump file (BIN file).
(
PICTURE
7.3-1)
is the interface after loading the EEPROM dump
file, the key ID displays FFFFFFFF, indicating that this position is not used, and
displaying other values means this key position is already used. VVDI2-BMW can
automatically detect whether it is encrypt version. For the CAS3+ unencrypt version,
please refer to Chapter 6.1 for prepare dealer key. If it is the CAS3+ encrypt version,
the prompt
(
PICTURE
7.1-2)
will appear when prepare the key. At this time, follow the
step below to prepare key:

Add key: Select a key position, put in a blank 7936 chip or Hitag2 (PCF7942-7944,
PCF7945, PCF7946 and PCF7953) chip and generate a key according to the prompt
(when the prompt
(
PICTURE
7.1-2)
appears, choose with a working key) and save the
new EEPROM dump. About the write dump file back you can refer chapter 6.1
about write back new dump after make key for CAS1/CAS2/CAS3/CAS3+

All key lost: All key lost is a little different

select a blank key position, click Prepare dealer key, a prompt
(
PICTURE
7.1-2)
appears

If there is ECU EEPROM dump or known ISN, only need to load ECU EEPROM
dump or input 16-byte (32-bit) ISN to prepare dealer key directly

Use the method of trying start, this method does not require OBD connect to the
car, only require the original CAS EEPROM dump.
1) First, the prompt
(
PICTURE
7.3-10)
or
(
PICTURE
7.3-11)
appears, click to enter the
next step
2) Put in a new key to generate a temp key and save new EEPROM data, appears
(
PICTURE
7.1-4)
, see the description of this picture
3) Confirm CAS has install on car before clicking OK. Start step of trying start, see
the description of the picture
(
PICTURE
6.3-12)
4) Just keep inserting the key into the ignition switch and trying to start. If it not start,
put it in the BMW TOOL programmer for reprocessing, and then trying to start
again.
5) If all trying to start are completed and still cannot start car, you need to restore
the dump in the CAS to the original and unlock the key before the next trying to
start, see Chapter 8 Unlock key for details