: This model is common in European and Russian markets. You can search by your specific serial number on the TCL Support Page to find official USB update packages.
Navigate to > Device Preferences > About > System Update > Network Update . Download TCL L43D2930S Firmware part3 rar
While direct download links for from forum posts are often unreliable or dead, you can obtain the necessary software for the TP.MS6308.PB775 chassis used in this model through verified support channels or technical repositories . Official & Verified Sources : This model is common in European and Russian markets
For the most secure and up-to-date firmware, it is best to use TCL's official update methods or local support portals: Download TCL L43D2930S Firmware part3 rar