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Projector
Explore Business Projector
Professional Installation Exhibition & Simulation Conference Room Meeting Room Education ProjectorsMonitor
Lighting
Interactive Display | Signage
The latest firmware update improves the rainbow effect issue, and if you're interested in resolving this, here is a guide to updating the firmware yourself.
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.
Applicable Models
TH690ST
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