Please remove the AC adapter. Note: Please don’t remove the AC adapter for ASUS laptop TP420IA and UX425IA model. (These models need to plug in the AC adapter to do the Hard reset process.)
Please remove the battery (for removable battery models)
Note: Some models cannot remove the battery pack (non-removable battery models), please ignore this step(b). There is a removable battery pack in the illustration below(C) as an example.
Please turn off the laptop (press and hold the Power button for 15 seconds until the Power light is OFF to force shut down), then press and hold the Power button for 40 seconds to do CMOS reset.
Re-install the battery (for removable battery models) and connect the AC adapter, then try to restart your laptop.
Enter the BIOS configuration. Please power off the laptop first. If the laptop is stopped on the logo screen, please press and hold the power button for 15 seconds until the power light is off to force shut down.
Waiting for few seconds after the laptop is power off. Press and hold the [F2] button, then click the power button. (Do not release the F2 button until the BIOS screen display.)