Hp compaq nc6220 power on password

[String2016]

Hi anyone help how to clear this hp compaq nc6220 power on password?thanks in advance

[cyberhack]

Re: Hp compaq nc6220 power on password

Have you removed the comos battery ? looks like just pop out the button

[String2016]

Re: Hp compaq nc6220 power on password

Problem solved I removed cmos for 5 mins then reverse polarity for a second the laptop works fine power on pass gone thanks for the response cyberhack