The X-board is a flimsy PCB that runs along the bottom edge of the panel. It connects to the glass via tiny, hateful ribbon cables (COF - Chip on Film).
Before cutting traces, confirm the issue is the panel and not the T-CON board or power supply. JustAnswer Check Voltages: Measure the following test points on the T-CON board (model S100FAPC2LV0.3 usually paired with this panel): ~25V to 30V -5V to -10V VDD / VCC: Isolate the Side: