Technical files for this specific chassis can be found on several community-driven repair platforms:
: Often contains older service manuals and software packages that are no longer available on official sites. TCL Service Manual & Software Archive Technician Telegram Channels Download MS18VG P77 TCL 32B3700 Backup Dump rar
The backup dump file for the mainboard used in the TCL 32B3700 Technical files for this specific chassis can be