| Error Message | Cause | Solution | | :--- | :--- | :--- | | | The USB is not FAT32 or the file is corrupt. | Reformat USB to FAT32. Download the file again. | | "No update file found" | The file name is wrong. | Rename the file to exactly what the instructions say (e.g., update.zip ). | | Projector freezes at 30% | The USB drive is too slow or too large. | Use a USB 2.0 drive that is 8GB or less. Do not use a Sandisk Ultra or high-speed gaming drive. | | Screen is black after update | You flashed the wrong hardware version. | Contact seller for the exact "backup boot file." This requires a PC-to-USB programming tool (PhoenixSuit). | | Wi-Fi is gone | The update wiped the driver cache. | Perform a "Factory Reset" from the settings menu, not the reset pinhole. |
This is a setting, not a bug. Go to Menu > Setup > Projection Mode to flip the screen. yg300 projector software update