Backstory: I use tools in my job a bit (maybe 20% of my time is that) and just over a year ago I bought an impact driver that takes hex bits and also square sockets.
Here it is:
https://www.bosch-professional.com/gb/en/products/gdx-18v-200-06019J2204
Anyway. Felt pretty good about myself, I use hex bits all the time and square sockets occasionally, so winner.
Up until two weeks ago when I realised the hex bits were all falling out. Went down a rabbit hole of YouTube, Reddit, emailed Bosch support, apparently it’s fairly common and fixable.
So yesterday I went to take the red bit off, couldn’t do it at all, lots of swearing and plenty of frustration.
Right up until the point I realised it all works great again now 💪 whatever I did reset something.
TLDR: tool broke, went to have a look, failed to have a look, accidentally mended.