Today I both a hammer drill Makita and the seller he gave me this cordless drill Bosch GSR VE-2-LI for free because it doesn't work and the chuck is stuck and rusty. This is not a restoration I just fixed the drill, chuck and torque setting. I did not replace the LED light because the electronic board is sealed and I don't want to damage it.
I didn't replace the carbon brushes because I'm not a fan of replacement if it still works. Maybe you have a similar cordless drill and maybe you can find something to help you in this video.

Thank you for watching