Press and hold the on the TV panel, then plug in the power cord.
Several tech communities host firmware for obscure boards: Cv338h-a32 Software Download
The TV will automatically restart once the progress bar reaches 100%. Do not turn off the power during this process. Press and hold the on the TV panel,
CV338H-A32 is a widely used Android-based universal smart TV motherboard (often part of the ZP.VST.6A338.PB818 series). Updating or reinstalling the software is typically necessary to fix "hang on logo" issues, boot loops, or app errors like "Android process media has stopped". Firmware Update Procedure Cv338h-a32 Software Download
The LED light should start blinking quickly, indicating the update is in progress. Do not turn off the power during this time.