If you want to reset the NEC project then you need some important information to do that Let's have a look The most common problem we face while using projectors is the lamp getting out of order. We have to reset the projector in this case. This is one of the most typical cases that happen in projectors. You blow up the lamp, and you are getting a message saying "service lamp" or "replace lamp", and you are wondering how to reset the lamp of your projector so that you can use your projector again.