If your TV is stuck on the boot logo or won't launch the OS, follow the standard forced USB upgrade procedure: Step 1: Prepare the USB Drive Plug your USB flash drive into a PC.
Plug the TV back in. Some boards require you to hold the on the TV (not the remote) while plugging it in.
The is not a standalone product but the mainboard "chassis" (model number) for a range of generic-brand Android Smart TVs, typically in sizes from 32 to 60 inches . Its very existence on the market is tied to its firmware—it's the software that defines the TV's capabilities and performance.