ASKING FOR HELP;

Hello everyone in the forum.My TV was working without any problem,and I decided to copy the EMMC.After copying it, I welded it back and it never boot again.I then decided to write new EMMC _THG8MNG5 with same program that I copied from it and the outcome came the same. I used the same emmc number THG8MNG5 .I then downloaded the program from the forum and wrote the EMMC with RT809H but the results are the same and i got more than 2 boards all of them behaves similar. I am asking for help PLEASE ,were am I doing it wrong ,thank you.

прошивал на RT809H , телик не ожил . Залил другую прошивку
https://remont-aud.net/dump....0-99758 , все гуд