What's wrong with this LCD screen?

To buy electronic components
https://www.utsource.net/?source=YouTube
In this video project, we repaired a BOE open cell panel (BOE HV320WHB-N85) whose scaler board was extremely burnt.
In this condition, component level repairing is not possible. Replacing the COF RM927ASFD with COF 8175-KCYCA & scaler HV320WHB-N55 in place of HV320WHB-N85 with the help of bonding machine.
We changed the COF & scalar both and still hope that line won't show up because 2 tracks were washed out. But luckily we managed to restore the panel perfectly.
#ledtvrepair #panelrepair #utsource