Facing a Dell laptop that won’t power on? In this video, I fix a complete power supply failure on a Dell motherboard. The issue was caused by a faulty power rail component / charging IC / MOSFET failure (you can adjust based on your video). I diagnose the shorted line, trace the power path, replace the faulty part, and bring the laptop back to life. ✔ No power ✔ No charging ✔ Main voltage missing ✔ Short circuit detected ✔ Power supply protection triggered ✔ Full repair shown step-by-step This r