I’m new here and I’m trying to learn some board-level repair skills.
I have an Asus ZenBook 14 UX425EA that won’t turn on after a thermal paste replacement. The laptop was fully working before the disassembly. I only removed the cooling system to clean the CPU and apply new thermal paste.
Current behavior:
- No normal power on
- Battery only: the white power LED turns on for a few seconds, then turns off. No display, no fan activity. I must disconnect the battery or hold the power button for ~15 seconds to get the LED again.
- AC only: the white
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