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Re: blank screen on pavilion n5150
Use an external monitor to check if you have a bad screen or deeper problems. If the machine works properly with the external screen, then your screen is out and needs replacing. If it doesn't work, then you have other issues. in the latter case, let me know and I'll see if we can figure it out.
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There is not default password as such but it comes up only when it is created.In order to get rid of the password we need to boot the computer to the BIOS .
Turn the notebook off and then when you turn it on or lets say as soon as you press the power button to turn it on start tapping the f10 key on the keyboard repeatedly till you get a screen that says BIOS SETUP UTILITY ,once you are on that screen press the f5 key on the keyboard it displays a mesage that says load default,press y for yes on the keyboard and then press f10 that displays a message which reads save and exit again pres y for yes and the computer restarts .Once it boots up should not for the bios password.
can you see anything on the screen at all? Look very closely at the screen from different angles under a strong light and see if you can see a faint image on it. If you do it means the back-light is not turning on which is usually a failed inverter board (cheap and easy fix). If you can't see anything at all on the screen then either the cable is not seated properly or is bad (not very common) or the screen itself went out (more expensive repair)