hello
i have the same problem whit mij se522 optoma beamer after 1000 houre of use i dit see 3 white dots on the screen so i dit contact a beamer expert en he says it is mostly dust so i dit let the beamer clean up . it was not good the dot wher still there after a movie or 2 now i kan see the whole galaxy .
i dit take out the lamp and had a good look at it for dust but it was clean .the i dit find out thad if i start te beamer and look in the lens the dots where bihind the lens i took out the lens and dit see a chip bihind it whit the spots on it.
now i am wondering can i clean thad chip and whit wat produkt ? or do i have to let it repare whit a new chip?
sorry for my bad English
hoop to get a selution