Good day,

It is truly frustrated not able to recover BIOS password. Dell sent me two master passwords that both did not work. So, I tried many times to remove the battery as well as CMOS coin cell battery and I followed Dell instruction and I got the message that time and date are not set which shows that the dell laptop password reset is successfully done based on Dell instruction. The problem I have that the password did not reset as if I have done nothing.

Am I doing something wrong after I was so close to fix the problem? 

I am not sure if restarting the laptop manually will solve the problem?

Can anyone help this issue that affect too many users? 

Thank you for your feedback.