06-26-2019, 02:39 PM
That may work, sometimes, if it actually clears NVRAM too. Not all laptops do this when clearing CMOS, so BIOS settings will be retained and it wont help. If it is an actual jumper, I would remove main battery, main power cable, CMOS battery if you can, then press and hold the power-on button for 30 seconds, then put on the clear CMOS jumper and leave like that for several hours.