: Search on sites like Remont-aud.net , Electronica-pt , or Epromer
. You may need to create an account and participate to earn "credits" or points for a download. Download Goldvision TNT MSD306 69A 12023 Dump rar
: In most cases, you must desolder the Flash IC from the Goldvision mainboard. : Search on sites like Remont-aud
: Use the programmer software to "Read" (to backup current data), "Erase," and then "Write" the new .bin file you downloaded. : Search on sites like Remont-aud.net