GOODEE YG420 - Boot Screen; Keystone Adjustment

4.3 Boot screen
As the projector start working, after screen display 2 to 5
seconds of boot screen, then come into the multimedia
screen.
44 Focus&keystone
4.4 keystone
Sometimes,the images which are projected on the wall is
a little twisted as a ladder ,we could take a keystone to
adjust it The keystone technology is the method to get the
image normalization by digital or optical technology.
Solution
Our projector provide optical keystone functionyou could correct
the keystone dust the image.