Ensure your board number is exactly CV638H-A . Using firmware for a different board can permanently damage your hardware.
The CV638H-A is a popular 4K Ultra HD Smart TV motherboard used by brands like , General , and other universal LED TV manufacturers. When the TV stuck on the logo, restarts constantly, or has a blank screen despite the backlight being on, an EMMC "dump" or backup is required to rewrite the internal memory chip. 📋 Technical Specifications Main Board: CV638H-A / CV638H-UHD Resolution: 3840 x 2160 (4K UHD) Panel Type: Supports various 4K panels (Samsung, LG, BOE) Storage Type: EMMC Flash OS: Android-based Smart System 📦 File Information: Part 06
The software will automatically pull data from to complete the file. 2. Flashing Process Ensure your board number is exactly CV638H-A
Right-click Part 01 and select using WinRAR or 7-Zip.
if the TV still loops after flashing, check the DDR voltages or the hardware health of the EMMC chip itself. Do you have an RT809H or similar programmer , or When the TV stuck on the logo, restarts
Click and wait for the "Verification Successful" message. 🔍 Troubleshooting
Connect your to the TV mainboard via the VGA/HDMI ISP port or by soldering to the EMMC pins (CLK, CMD, D0, GND). Open the programmer software on your PC. Select the extracted .bin file. Flashing Process Right-click Part 01 and select using
What is the (found on the sticker on the back of the screen)?