I have a
hp dv7 series 3050 laptop.
Recently, I left it on charging on standy mode and someone unwillingly disconnected the charger and it turned off.
At the restart I noticed that the time was strange, every time when it reach 4pm, it automatically goes back to 3am, the same thing when I start it.
After brief research, I saw that it has a problem with the cellboard, responsible for maintaining the
BIOS settings even after shutdown.
BIOS model is
I'd like to know a more professional take on what may be happening, and what should I do to fix it.