Updates often reset the language to Chinese. Navigate to the "cog" icon (Settings) and look for to switch it back to English. If you'd like, let me know: specific issue

Since the manufacturer's site is often inaccessible, users typically rely on archives from tech forums like Format a USB Drive : Use a drive (preferably 8GB or smaller) formatted to Add Update Files : Copy the firmware file (often named MstarUpgrade.bin or similar) to the root directory of the USB drive—do not place it in a folder. Initiate Update Plug the USB into the projector's USB port. Navigate to Settings > Upgrade and select the USB update option. Alternative Hard Reset Method

. Because official manufacturer links are often dead, community forums like