This is the standard procedure for most CV338H-based devices.
If the image appears upside down (Mirror Mode) or the colors are distorted after the update: Press Menu + 1147 on the remote.
Do NOT turn off the power. The TV will restart automatically once finished. ⚙️ Post-Installation Setup
Flashing incorrect firmware can result in:
Flashing motherboard software carries inherent risks. If your TV screens turns off or loses power mid-update, the mainboard will be permanently corrupted, requiring a physical hardware programmer (like an RT809F) to fix. What if the TV doesn't detect the USB? Try a different USB port on the television. Cv338h-a32 Software Download
Before downloading or installing any software, you must understand what powers this board. Installing firmware meant for a different processor or configuration can permanently brick your television. Component / Feature Specification Details
Get your board back to peak performance with our easy USB update guide.
Constant "Unfortunately, system UI has stopped" or Google Play Services errors that a factory reset cannot fix.
The download link is: https://drive.google.com/file/d/1tXxsITdf5fDXwJhRH7r1-BJMqfNDyK0R/view?usp=sharing This is the standard procedure for most CV338H-based devices
Acquire the correct firmware file (usually a .bin or .img file) matching your TV’s panel resolution.
Corrupted or incompatible firmware
The most reliable sources are TV technician repair forums.
To perform a successful USB flash upgrade, prepare the following items: The TV will restart automatically once finished
Insert the prepared USB drive into the port of the TV. Avoid using ports labeled for debugging or specific media extensions if possible.
HDMI ports, USB 2.0 ports, AV Input, RJ45 Ethernet, Built-in Wi-Fi, VGA, and RF Tuner Why Do You Need a CV338H-A32 Software Update?
Compatibility & Risks