Helios 300 G3-571 have weird sound from external speaker when switched off

Sohot
Sohot Member Posts: 1 New User
edited March 2023 in 2017 Archives
Hi Community! I just bought a Predator Helios 300 G3-571. Everything looks great but when I switched off the Helios, I got "papapapapa" sounds from the external speaker. I tried 2 sets of speaker and got the same result.
Futhermore, the Acer Quick Access apps seems not working properly, I cant activate coolboost and switch off the USB poweroff charging.
Anyone have a similar experience and a possible solution?