Fix Dead LED TV: N.H352.818 Motherboard No Indicator Problem Solution LIVE

In this live session, we tackle a challenging "No Indicator" and "Dead" problem on the N.H352.818 (Version 4) Smart TV motherboard. This board was sent to us from Devgadh, Gujarat, after other technicians were unable to repair it.

Follow along as we walk through the professional troubleshooting process, from basic voltage checks to advanced BGA machine repair and eMMC software health analysis. Whether you are a beginner or a professional technician, this guide will provide you with actionable insights for repairing modern LED TV motherboards.

What you will learn in this video:

Step-by-step voltage troubleshooting for the N.H352.818 board.
How to use a BGA machine for professional processor reflowing.
Critical eMMC health settings in UFI Box to avoid data corruption.
Tips for identifying dry solder vs. open tracks.
Video Timestamps
00:00 – Introduction and fault overview (Dead Board from Gujarat)
01:05 – Confirming the "No Indicator" symptom
01:54 – Basic Voltage Checks (12V, 5V, 3.3V, 1.8V, and 1.2V)
05:12 – Checking eMMC and Processor communication voltages
06:55 – Transitioning to the BGA Machine for processor heating
07:44 – Applying high-quality flux and preparing the board
10:30 – Starting the BGA profile (Temperature settings and segments)
15:10 – Cooling process and initial post-heat checks
21:18 – Diode test on RAM and Processor lines
22:43 – The Fix! Indicator light returns and power-on test
25:20 – Display testing on Motherboard Tester
31:54 – Q&A: What to do if the problem returns in 2-3 days?
40:50 – Advanced Lesson: UFI Box eMMC Health & Software Settings
44:42 – How to reset RPMB and fix eMMC health reports
55:40 – Critical tips for changing eMMC ICs (Versions and Revisions)
01:00:10 – Final wrap-up and community shout-outs
Equipment Used:

BGA Rework Station
UFI Box (for eMMC programming)
Digital Multimeter
Motherboard Tester
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Видео Fix Dead LED TV: N.H352.818 Motherboard No Indicator Problem Solution LIVE канала Magiccare Electronics