Download File Cv338h-t42_1920x1080_1g_8g_caixun... -

Are you using a or the original Caixun remote? Do you have a multimeter to check the board's test points?

: It performs a checksum after the file is copied to the USB to ensure the download wasn't corrupted, which is a major cause of "boot loops" during updates. 3. Visual Maintenance & Service Guide CV338H-T42 Download File CV338H-T42_1920x1080_1G_8G_CAIXUN...

: The download package could include a digital maintenance guide with clickable testing points . For example, it would highlight where to check for 12V at TP1 or 3.3V at TP12 if the TV refuses to boot even after the software update. Are you using a or the original Caixun remote