Load the downloaded .bin file into your programmer software and write it to the chip.
If the TV still won't boot, you may need to check the power supply voltages or replace the board entirely, which is available on Amazon or eBay. Download S506 PB801 HISENSE LTN40D50EU Backup Dump rar
Always read and save your current corrupted firmware before overwriting it. Load the downloaded
Before downloading, verify that your TV's internal hardware matches these specs. Using the wrong firmware can permanently "brick" your motherboard. Hisense LTN40D50EU / LTDN40D50EU Download S506 PB801 HISENSE LTN40D50EU Backup Dump rar
Hold the Power button on the remote or TV while plugging the power cord in to trigger the auto-update.