There are three reasons for snowflakes on projectors:
1, does it mean that you use the TV to see no snowflakes, use the projector to see snowflakes? If there is a problem with the projector, it can be repaired during the warranty period.
2, if your TV also has snowflakes, it can only explain the reason why your video signal is not good. You can play other DVDS and see what happens. Just find the CCTV.
3, is it like the black or other color of the snowflake that spilled ink? If yes, the DMD chip of your projector is broken, this can not be repaired, can only be replaced, if the model is too old, it may not necessarily be matched with DMD chip