Helios 300 PH315-54-768A Turns ON then suddenly shuts off. No boot

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Hi guys, I have a problem with my laptop Predator Helios 300 PH315-54-768A. This issue happened all of a sudden. Laptop is over a year old but never got an issue with it until now.

When I turn it on, power led (blue light) comes up but after a few seconds it shuts off. That being said, laptop has no boot, no display, no keyboard lights except for the power led that comes up but turns off probably around 2-3 seconds.

I tried:

-unplugged the battery then directly connect with the power adapter. Still blue light comes up but then shuts off in a few seconds.

-reseated the ram

-power led comes up but fans doesn't startup when I press the power button.

I hope anyone here can help me with this issue.

StevenGen

https://community.acer.com/en/discussion/672129/helios-300-ph315-54-768a-turns-on-then-suddenly-shuts-off-no-boot

Try the Acer recommended "Battery reset - which is to press the Power button for 9 seconds to reset the battery" like below:

If the above does not work then do a hard reset by taking the back cover off and disconnecting the main battery, RTC/bios battery and take the ram out, leave them all disconnected for 5 min and reconnect and reboot the laptop, as your laptop could have a frozen super IO or bios chip that needs a hard reset, and doing what I've suggested will rest all that and your laptop should boot up properly. If not, then you have other problems like, your power key switch, that is defective, in the laptops primary power circuitry stages in your mobo, a gpu memory, a cpu power issue etc etc that could some can be fixed and some can be terminal and your mobo needs replacing so, its best that you have your laptop analyzed by Acer or an experienced tech in your area.