I have good experience with drilling a small hole in the side of the housing and through the LED. You need to aim well. Its not a good technique for all annoying LEDs.
Sometimes the indicator LED acts as a voltage reference for some circuit. In that case, destroying it is a bad idea.
Also, I think most hotels would object ;-)
Re:Fixing Annoying Blue Standby Lights
by Workaccount2 on Tuesday January 02, 2024 @10:55AM
(#38842889)
Only the cheapest of cheap electronics would use an LED as a reference.
I tried covering it with a post it (several layers) and after a month I noticed that the yellow colour had whitened completely where the LED is. Probably contains an unhealthy level of UV as well. Yuck.
I tried opening it up to replace the LED but it's clipped somehow. Very hard to open without damaging it.