I recently had an issue with my Framework stylus where it wasn’t working or seemingly able to charge - even while plugged in, the LED wouldn’t light up, which caused a brief scare.
This was easily fixed by removing the battery using the Framework tool and re-inserting it (much appreciated how easy this was)!
Just wanted to share in case anyone else suddenly experiences issues with their Framework stylus – a previous poster with this issue ( Stylus won't charge ) only received responses related to the cable or a potential defect.
I imagine this occurred because I keep the stylus at the bottom of my bag, under heavy items, and some contact points may have been dislodged. So I would suggest that you keep your stylus more protected than me, and hopefully a future version will be a little more resilient.