my laptop won't boot anymore. After pressing power button the keyboard lights for a few seconds. Then only most basic LEDs and fan work. No response to any input, no access to bios.
I already tried removing the battery and AC and pressed the power button for minutes, no change. (only the fans seem less noisy).
The problem occurred after I changed bootorder to boot from live win7 usb created using winusb. For this I simply moved usb to #1 in bios menu. After reboot I see nothing but black screen.
Does anybody know how to reset to previous state or make it do anything?
The device is an ASUS GL522J running ob Ubuntu 16.04 (dual boot with Ubuntu 16.04 studio). I do not post in the Ubuntu section since the problem doesn't seem to be related. The device is a few years old, no warranty. Still I don't want to touch the hardware since this obviously is a software problem... Is it necessary to remove the cmos battery to reset the bios or may I also perform a crisis recovery?
Any help is appreciated!