How to Diagnose a Dead iPhone 14 Pro Max – No Power Investigation Tutorial скачать в хорошем качестве

How to Diagnose a Dead iPhone 14 Pro Max – No Power Investigation Tutorial

A completely dead iPhone 14 Pro Max came in with no power and no charging response. In this video I walk step-by-step through the full diagnostic workflow: measuring board consumption, locating a main rail short with thermal imaging, replacing the PMIC, and investigating cascading failures that eventually lead to a full board swap. This is not a “magic fix” video — it’s a real-world repair case showing how diagnostics escalate when a board is heavily damaged. The goal is to demonstrate the reasoning process behind each decision, what to expect at every stage, and how to approach a no-power phone logically. Topics covered: • No power diagnostic workflow • Main line short detection • Thermal camera investigation • PMIC replacement and reballing • Secondary short analysis • NAND reball • Full board swap and recovery • DFU troubleshooting • Final validation and testing Background music: Liquid Time – Aakash Gandhi (YouTube Audio Library) 0:00:00 Intro 0:00:40 Diagnose charging and board consumption 0:06:46 Thermal cam investigation 0:11:30 PMIC removal 0:38:41 Harvest, clean and reball a new PMIC 0:57:22 Investigate a new short 1:08:25 Replace U4000 1:20:29 Second attempt to boot board 1:22:22 Investigate PMIC issues 1:29:10 Replace PMIC #2 1:32:06 Third boot attempt 1:38:41 NAND Reball 1:40:56 Fourth boot attempt 1:46:06 Full Swap 1:56:30 Investigate and fix DFU issue 2:14:30 Final test