You can find these firmware downloads on specialized electronics repair platforms:
To install, copy the correct .bin file for your resolution onto a FAT32-formatted USB drive, plug it into the TV board, and power it on. Most of these boards use the factory service code to access advanced settings after the firmware is updated. Download R85 A81 All Resolution part01 rar
: Often hosts "All Resolution" free download links on their official site or social pages . You can find these firmware downloads on specialized