: A confirmed fix thread for this exact model exists where users share the working .bin file. You may need to create a free account to access the Google Drive link or attachments. Elektrotanya : This site hosts various TP.SIS231.PT851
dumps. While some are labeled for the 32-inch model, they often use the same board architecture. Download Flash Dump VIVAX 40LE72 SIS231 P851 rar
Do you have a (like a CH341A), or are you trying to update via USB stick ? : A confirmed fix thread for this exact