While Panasonic provides official firmware updates for some regions on their Global Support Site , these are often "update" files for working TVs, not the "dump" files needed for broken boards. For a full backup dump:

Technicians often share these files on platforms like lcd tv led tv smart tv software on Telegram , where specific board files like tp.vst59s.pb712 MIRROR.BIN have been listed.

The specific dump file you're looking for, , is a firmware backup used for repairing or restoring televisions that use the TP.VST59S.PB712