How to remove black spots or solve blur issue from WZATCO S2 / S4 Projector

We have made this video as self guide on how to repair / service your WZATCO S2 or WZATCO S4 projector. This is a deep clean guide, there is also a quick guide on how to address blur issue and issues with black spots.
Black spots are basically nothing but tiny dust particles that enter the projector and stick on the LCD screen or the glass. When this happens, we see small black spots. These spots are enlarged due to the projection and appear big sometimes.
To clean this, first easy method is the to remove the back sticker and open the LCD latch (a small latch) which gives access to LCD. You can clean the LCD from there. If this does not help, then please watch this video guide. For any queries, reach out to customer support [e-mail]