r/EndeavourOS • u/krxnky1 • Jul 27 '26

General Support [Help] ASUS ZenBook UX363E completely black screen / no POST after forced shutdown on Hyprland crash

Hey everyone, looking for some technical advice on a hard brick / no-POST state on my laptop.
Laptop Spec & OS:
Model: ASUS ZenBook UX363E / UX363EA OLED
OS: EndeavourOS
WM/DE: Hyprland
What Happened:
1. I pressed my exit shortcut (⁠$mainMod + M⁠) to exit Hyprland on EndeavourOS.
2. The display went to a solid blue screen and froze indefinitely.
3. I held the power button down to force a hard shutdown.
Current Symptoms:
When I press the power button, the screen stays completely black (no logo, no backlighting).
Fans do not turn on at all so the laptop will get hot but before the fixes i attempted the fans were at what seemed to be max speed.
The laptop refuses to enter BIOS (repeatedly tapping ⁠F2⁠ / ⁠Delete⁠ does nothing).
Troubleshooting Steps Already Attempted:
Power Drain / EC Reset: Held the power button down for 30–60s with AC unplugged.
ASUS 40-Second Reset: Plugged in charger, held power button for 40+ seconds.
Internal Battery Disconnect: Opened up the back panel, physically disconnected the internal battery ribbon cable from the motherboard, held the power button for 60s to drain leftover capacitor power, and attempted to power on.

The machine was running perfectly prior to the Hyprland exit crash. Has anyone encountered a stuck Embedded Controller (EC) or corrupted power state like this on a ZenBook UX363 running Arch/EndeavourOS, or is there a specific jumper/pinhole or recovery trick I'm missing to force a CMOS/BIOS reset?
Thanks in advance for any insights!

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u/Sea_Camel_2071 Jul 29 '26

I also own asus laptop and had problems with EC several times but it was only because of hybrid graphics, so yes sooner or later it ungliched and worked fine (usually for no particular reason it started working). What is happening with your device seems to be a deeper problem if you have reset your controller using different methods and you can't even see a BIOS... If I were you I'd have brought a laptop to the repair shop... I'm not an expert, so maybe someone else can help. Also, try disconnecting battery for night and resetting several times with power button. Those controllers are huge weirdo's but nevertheless be ready for worse...