1. Please download the latest firmware
2. Unplug the power cord.
3. Long press” power” and “source” key and plug in the power cord at the
same time.
4. Three flashing red lights blink simultaneously on the front of the projector.
5. Connect a laptop or desktop PC to the projector via USB-A.
6. Double click the firmware file, which starts the update process. This takes 4-
6 minutes to complete.
7. The update process will be completed when you see a “DEVICE NOT
FOUND” pop up message.
8. Power on the projector until the power indicator goes back to standby mode
(steady orange light)
9. Check the firmware version (go to menu-> information->firmware version)
10. If the process doesn't complete as expected, please unplug the power cord
and press the “up” and “down” keys at the same time then plug in the
power cord and the system will reset so you can try the update again from
step 6.