Dell E6410 BIOS Password

I have a Dell E6410 laptop with an Administrative Password in the BIOS that I can't unlock.

System Number: BYCRWN1-2A7B

I have tried:

1. Removing the CMOS battery. (no luck)
2. Upgrading the BIOS (it's currently V06). (It asks for the password before it will update)
3. Using a master password. It can't get the machine to go into a system lock. I've put in the wrong password about 15 times already and it's still set as the old Administrative Password. The password I've tried is : zy9yZmQPW17HSl4V

Please help! I don't know what else to do. Thanks!

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