Do not mix firmware from a 512MB version with a 1GB version. It will not boot.
The 2021 software update package targeted structural bugs inherent to long-term usage of the Android 4.4/7.1 operating systems on limited hardware. 1. Resolving the "Android is Starting" Boot Loop cvte msd338 512m update 2021
Q: Is the CVTE MSD338 512M update 2021 free? A: Please contact CVTE or an authorized distributor for information on the update's pricing and availability. Do not mix firmware from a 512MB version with a 1GB version
Furthermore, the 2021 update cycle highlighted the importance of panel matching. CVTE boards are universal, meaning the same board can drive a 24-inch 720p screen or a 42-inch 1080p screen. A critical component of the update is the LVDS (Low-Voltage Differential Signaling) configuration. If a user installs firmware with the wrong resolution settings, they risk a "black screen" or "solarized" image. Consequently, the 2021 update archives often included various versions of the software tailored to specific screen resolutions and remote control codes. and functionality of the panel
In 2021, CVTE announced several significant updates to the MSD338 512M display panel technology. These updates aimed to improve the performance, efficiency, and functionality of the panel, making it even more suitable for a wide range of applications.
Press and on the TV's physical keypad (not the remote).
Quickly press the following sequence on your remote: . The Factory Menu will overlay on the screen.