But there was no voltage indicated and I was not prudent enough. testing on 3V was ok, but 3.2 proved to be too much and the LED's were burnt.
Ordering again? Or trying to repair.
Repairing and mending is GREEN, isn't it?
I decided for the last option and I learnt a lot from this, so that is why I made this experience in an small instructable.
It was alo very rewarding to notice the care for details in the design of a small button nobody would ever open.
Step 1: Tools
a tweezer (very important for this job!)
a replacement LED, SMD, or very small LED with the right flat wires
a button with a LED (the LED being fried)
(but don't frie your LED to do this instructable! )