In this article, we’ll show you how to unlock a BMW smart key with comfort access using the VVDI Key Tool Max.
Check VVDI Key Tool Remote Unlock Wiring Diagram if you need it.
FCC ID – KR55WK49147
Chip – PCF7953
So we go to
Special Function>>Remote Renew>>BMW>>5WK49147 E Series 315MHz Smartkey
Now if the key is an OEM key, there is a renew adapter available.
If the key is not original, we can solder it using the connection diagram and the Renew cable.
Take a look at the PCF7953 key circuit board after soldering it up.
Then go to
Special Function>>Remote Renew>>BMW>>5WK49147 E Series 315MHz Smartkey>>Unlock
Read the chip again on “Transponder Clone”.
Now we’re able to program it to a BMW.
Done! Really easy to unlock a key.
This guide from MY KEYS AUTOMOTIVE Team.
Now buy VVDI Key Tool Max, get a Renew cable for free.