Remove the back cover to access the TP.S506.PB801 motherboard.
TP.S506.PB801 (A common "three-in-one" board used in many universal LED TVs) Panel Model: Often paired with 1920x1080 resolution panels 2. Download the Backup Dump Download S506 PB801 HISENSE LTN40D50EU Backup Dump rar
Plug it into the TV's USB port (use a USB 2.0 white port if available). Remove the back cover to access the TP
You can find the TP.S506.PB801 Backup Dump on technician forums like HowToFiXiT.gr . Download S506 PB801 HISENSE LTN40D50EU Backup Dump rar
Load the downloaded .bin file into your programmer software and write it to the chip.