OTP Verification
Your One-Time Password (OTP) has been sent to your registered email address and phone number. The OTP expires in 5 minutes.
After the restart, return to the menu to confirm the new version number is displayed. You may need to re-select your language and reconnect to Wi-Fi after the reset. Troubleshooting Common Issues
: Power off the device and insert the USB drive into the designated service or USB port.
Most projectors using this board do not support Over-the-Air (OTA) updates via Wi-Fi and require a manual USB flash. Prepare the USB Drive : Use a drive with less than 32GB capacity, formatted to Download & Extract : Locate the firmware file (often labeled KT20_V2.0.bin ). Place it in the root directory (not inside a folder) of your USB drive. Connection : Plug the USB drive into the (Input) slot while the projector is powered off. Initiate Flash : Plug in the power cord and long-press the power button
After the restart, return to the menu to confirm the new version number is displayed. You may need to re-select your language and reconnect to Wi-Fi after the reset. Troubleshooting Common Issues
: Power off the device and insert the USB drive into the designated service or USB port.
Most projectors using this board do not support Over-the-Air (OTA) updates via Wi-Fi and require a manual USB flash. Prepare the USB Drive : Use a drive with less than 32GB capacity, formatted to Download & Extract : Locate the firmware file (often labeled KT20_V2.0.bin ). Place it in the root directory (not inside a folder) of your USB drive. Connection : Plug the USB drive into the (Input) slot while the projector is powered off. Initiate Flash : Plug in the power cord and long-press the power button