u/Business_Fox6344

Timeline of the issue:

• Initially, I started getting random BSODs and automatic restarts.
• Later, the BSODs disappeared, but the screen started randomly going black for about 1 second and then coming back. During this time, the laptop itself kept running normally.
• After some time, the laptop suddenly became completely dead:
  • no charging LED
  • no power light
• A technician diagnosed a faulty power IC and replaced it.
• Laptop worked again, but the flickering issue remained.
• Then the laptop died AGAIN with the exact same symptoms (completely dead/no LED). It was repaired again free of charge, but no clear root cause was identified.

Now the laptop is working again, and the flickering issue has reduced a lot, but it still happens occasionally.

Additional important behavior:

• If I restart the laptop, there is around an 80% chance the display will fail to load properly.
• The ASUS logo always appears normally during boot.
• I can hear the Windows welcome/login sound, which means the system itself is running.
• But instead of the login screen, the display becomes a plain gray screen and stays there.
• To get into Windows properly, I usually have to force shutdown and power it on multiple times until the display finally works.
• I’m attaching an image of this gray-screen state.

Other observations:

• The issue seems worse on battery than on charger.
• During a power cut, while switching from charger to battery, the screen flickered and then the video froze for several seconds while audio kept playing.
• Another time on battery, the screen went black for a few seconds while audio continued normally.
• The issue is NOT related to moving the screen/lid.
• Sometimes after shutting down normally, the laptop later refuses to power on at all.

At this point I’m confused whether this is:

• motherboard power rail instability
• GPU/iGPU power issue
• RAM/power delivery issue
• battery power switching issue
• failing PMIC/VRM
• or something else entirely.

What confuses me most is the sequence:
BSODs → display flickering → gray-screen boots → complete no-power state → temporary recovery after power IC repair.

Has anyone experienced something similar or diagnosed a fault like this before?

https://preview.redd.it/x3uu4y1m440h1.jpg?width=4000&format=pjpg&auto=webp&s=7124d545f4db7702165b16358b3c05cb832d85f7