What is used to recover damaged satellites to earth?

Very few satellites are ever recovered. If a satellite is no longer doing its job,

for whatever reason, and it can still be controlled from the ground, then it's

orbit will be intentionally changed to one that skims the atmosphere. After

that, it doesn't take long before the satellite completely "falls" out of orbit,

and burns up in the atmosphere.

If a satellite no longer responds to remote command and control, then there's

nothing that can be done with it except to track it. It has graduated into the

category of "Space Junk", and it'll continue to go where the laws of Physics

take it. The only remaining task of any interest is to know where it is at all

times, so that future space missions can avoid it.