: This is one of the most reliable sources for free firmware dumps. You can find a Goldvision LED39D3F TNT dump specifically for the TP.SIS231.P83 V390HJ1 board Another variant for the Smart-Tech SMT39DTV1 uses a very similar PT85 board paired with the V390HJ1-P02 panel.
: Because this is a "dump" file (often from the SPI Flash memory), you typically cannot install it via USB. You will likely need a hardware programmer like the Go to product viewer dialog for this item. or CH341A . Verify Panel Match : Ensure the dump matches your panel ( V390HJ1 P02 Download SIS 231 P83 Panel V390HJ1 P02 Backup Dump rar
You can find the specific firmware files and board schematics on several technician-focused platforms: : This is one of the most reliable
Chimei Innolux V390HJ1-P02 Features * Favorite. * Compare. * Specs Detail. You will likely need a hardware programmer like