BMW VVDI2, User Manual, Page: 36 / 50

BMW TOOL User Manual
Ver: 2.0
36
(
PICTURE
7.3-1)
7.4. File make key CAS4 (encrypted version)
(include all key lost)

Attention: Please refer to Chapter 7.1 for the detailed description of this
process

Menu->File generation key->CAS4 or CAS4 (5M48H), select the corresponding
EEPROM-CAS4 or CAS4 (5M48H, 1N35H), select the corresponding type, and
follow the prompts to load the EEPROM dump file (BIN file).
(
PICTURE
7.4-1)
is the
interface after loading the EEPROM dump, the key ID displaying FFFFFFFF means
that this position is not used, and displaying other values means this position have
been used
CAS4 has two file types: 1L15Y and 5M48H

1L15Y type: This type has no encryption version, except for "CAS4 ->XEP100
MCU (5M48H mask)" cannot be selected, other types can be loaded

5M48H type: This type has encrypted version and unencrypted version. Select
"CAS4 ->XEP100 MCU (5M48H mask)" or "CAS4+(5M48H)" to load,and BMW
TOOL can detect whether it is an encrypted version automatically

CAS4+ can select CAS4+ (5M48H, 1N35H) directly

Choose a blank key position, put the blank key into the BMW TOOL
programmer, and click Prepare Dealer Key. The unencrypted version will directly
prepare dealer key successfully. The encrypted version will appear
(
PICTURE
7.1-3)
tips, there are two ways at this situation: add key and all key lost

Add key: When the prompt
(
PICTURE
7.1-3)
appears, select have a working key