1. Check the firmware version
Go to the projector's settings via the following path: Settings > System > About > System Update, then check if the firmware version is the latest. Please upgrade the firmware when an update is detected.
2. Factory reset (for specific symptoms)
A reset can reboot your projector or it can clear all product settings and revert the item to its original out-of-box state. If you encounter issues like automatic shutdown, frozen on TCL Smart Projector logo, or colorful lines, please try to factory reset the projector.
To Restore to the Factory Default Settings: Go to Settings > System > About > Reset > Factory reset > Factory reset > Erase everything.