Never install a firmware file simply because it says "MSD338". You must match three specific criteria:
Access the service menu to adjust mirror mode if the image is upside down.
Press and on the TV cabinet (not the remote control).
Since CVTE is an OEM manufacturer, official firmware is rarely on a public consumer site. Reliable community sources include: Kazmi Elecom : Often hosts firmware for TP.MS338.PB801 and related boards. KenotronTV : A specialized technician forum for USB updates (requires registration/account). Telegram Communities : Channels like Softwarezone.ga often share direct links to files for these specific boards. Critical Warnings Resolution Mismatch: Cvte Msd338 512m Update
The file name isn't exactly what the bootloader expects, or the USB drive is incompatible.
Insert the prepared USB flash drive into the port (avoid the USB 2.0/3.0 blue ports if a dedicated service port is highlighted on the board layout).
Keep holding the button until you see the standby LED start flashing rapidly, or until the "Upgrading Software" progress bar appears on the screen. Release the Power button once the upgrade process begins. Step 5: Complete the Installation Never install a firmware file simply because it
: Pre-installed apps stop working due to outdated system certificates. Pre-Installation Checklist Before starting, ensure you have: A FAT32 Formatted USB Drive : The board may not recognize NTFS or exFAT. The Correct Firmware : You must match the board model ( TP.MS338.PB801 ) and your panel resolution (
What your TV is currently showing (e.g., stuck on boot logo, black screen, inverted colors)?
is one of the most widely used Android-based universal Smart TV mainboards in the global electronics repair and DIY television industry. Manufactured by (Guangzhou Shirui Electronics Co., Ltd.), a powerhouse in television mainboard production, this board serves as the core processor for hundreds of budget-friendly Smart TV brands. Since CVTE is an OEM manufacturer, official firmware
Because 512MB of RAM leaves virtually no room for background processes, a freshly updated MSD338 board requires manual optimization to prevent future slowdowns:
Check the sticker on the back of the actual LCD/LED panel matrix inside the TV chassis (e.g., V320BJ7-PE1 ). Firmware contains specific LVDS panel resolution voltages (1366x768 vs 1920x1080) and data maps.
If you need help finding the right files or configuring settings, let me know:
: Fixes instances where the TV hangs indefinitely on the initial Android logo sequence.
