Hi! First of all I did search a lot about this issue and I can't seems to find a solution or similar to my problem, here's the story, the laptop is old (I know, but i use this only for school paper works, xubuntu OS) Toshiba Satellite Pro L300D at first I thought it was dead because of the brick BIOS, so to check I've done some troubleshooting:
Ram check
Hdd check
Boot with F key pressed
Even desoldered the cmos battery terminal and solder it back after an hour (Iknow how to solder don't worry)
Boot with external display
No battery boot
5 minutes press of the power button to drain the remaining electricity
And a combinations of above
BUT after not using it almost a month it magically boots up perfectly, then I started using it again for a month, then my professor told us to install a windows OS because he wants us to use the program that is only available to windows so I dual-boot my latop, installed the software, then I decided to installed Bitdefender as my AV but after it restart it didn't boot to windows desktop (just a black screen with a mouse pointer) so I decided to go into safe mode and disable the AV but after I force shutdown the laptop, the problem started to exist, it's not booting up again and now I regret installing that AV.
Is anyone here know exactly what am I facing?
Ram check
Hdd check
Boot with F key pressed
Even desoldered the cmos battery terminal and solder it back after an hour (Iknow how to solder don't worry)
Boot with external display
No battery boot
5 minutes press of the power button to drain the remaining electricity
And a combinations of above
BUT after not using it almost a month it magically boots up perfectly, then I started using it again for a month, then my professor told us to install a windows OS because he wants us to use the program that is only available to windows so I dual-boot my latop, installed the software, then I decided to installed Bitdefender as my AV but after it restart it didn't boot to windows desktop (just a black screen with a mouse pointer) so I decided to go into safe mode and disable the AV but after I force shutdown the laptop, the problem started to exist, it's not booting up again and now I regret installing that AV.
Is anyone here know exactly what am I facing?