Once the blinking stops or the TV restarts, the software is installed.
Installing the wrong firmware (e.g., 1080p software on a 768p screen) can cause a "mirror" image or a blank display. If you're looking for where to buy a replacement board, they're available on sites like AliExpress or IndiaMART .
The display resolution this software is configured for.
Likely refers to the specific panel or hardware revision being targeted.
Insert the USB into the TV, hold the power button (or follow the specific board's sequence), and plug in the power. The TV's indicator LED should blink rapidly during the installation.
Once all parts are downloaded, extract them to get a single file, often named allupgrade_msd358_4G_sos.bin or similar.
Firmware like this is usually installed via the "USB Upgrade" method when a TV is stuck on the boot logo or has a black screen.