Service manual

C20
Condential
5-4
(7) Choose "system setup"
(8) The "system upgrade" will show,choose
"system upgrade"
(7) Choose "Yes".
4. Wait a few minutes until the projector
downloads nish,then the system will
reboot.In this process, please ensure the
projector power on and don't plug out
power adapter.
(7)
(8)
(9)