DEAD MOBILE CHECK STEP-BY-STEP ✅️|DEAD MOBILE KO KAISE CHECK KARE | MOBILE REPAIRING COURSE скачать в хорошем качестве

DEAD MOBILE CHECK STEP-BY-STEP ✅️|DEAD MOBILE KO KAISE CHECK KARE | MOBILE REPAIRING COURSE

DEAD MOBILE CHECK STEP-BY-STEP ✅️|DEAD MOBILE KO KAISE CHECK KARE | MOBILE REPAIRING COURSE ‎⁨@htlogic⁩  All Mobile Set Dead Solution✅️ PMIC Buck Voltages⚡️Fluctuation 🔧DEAD MOBILE CHECK STEP-BY-STEP ✅️ | Mobile Repair Training Hindi 🧰 Tools Used: Microscope Multimeter DC Power Supply Rosin Hot Air Gun Jumper Wires Tweezers etc. Your Requirements Technical Institute --- 🔍 Step-by-Step Process: 1️⃣ Visual Inspection (Burn marks, corrosion, broken parts) 2️⃣ Battery & Connector Check 3️⃣ Check Charging Path 4️⃣ Check Main Power Line (VBAT → PMIC) 5️⃣ PMIC Output Buck Voltage Test 6️⃣ CPU, eMMC & XO Check 7️⃣ Shorting Test with Rosin + DC Supply 8️⃣ Reball/Replace Faulty Components --- ⚠️ Common Causes of Dead Mobile: Water damage Shorted capacitor or IC Faulty PMIC eMMC failure CPU short यह वीडियो खास तौर पर उपयोगी है: Mobile Repairing Students Professional Technicians जो लोग Mobile Repairing को Career बनाना चाहते हैं All Mediatek Set Dead Solution    • All Mediatek Set Dead Solution | Dead Mobi...   Samsung A13 Dead solution    • Samsung a13 dead solution | Mobile Repairi...   --- ✅ Watch full video and bring your dead phones back to life! 📌 Like, Share, and Subscribe for more professional-level mobile repair tutorials in Hindi. 📞 For Business Inquiries +91 9654219510 / Training Support – Contact: [Your +91 9654219510 WhatsApp/Email [email protected] 📍 Location: [DELHI #mobilerepairingcourse #deadmobilesolution #buckvoltage #deadmobilecheckstepbystep #DeadMobile #MobileRepair #PMIC #MobileNotPoweringOn #ShortFind #MobileRepairHindi #DCpowerSupply #MultimeterTips 🔧 PMIC BUCK Voltage Fluctuation – Causes, Diagnosis & Solution 📌 What is PMIC BUCK? PMIC (Power Management IC) Buck converters are step-down voltage regulators used to supply stable power (like 1.8V, 1.2V, etc.) to mobile phone CPU, RAM, display, etc. dead mobile check step by step dead mobile repairing in hindi dead mobile solution dead mobile se data kaise nikale dead mobile ko kaise check kare dead mobile testing dead mobile fault finding dead mobile fault tracing dead mobile dead mobile check multimeter dead mobile repair step by step mobile repairing course mobile repairing course in hindi buck voltage fluctuation buck voltage up down buck voltage not stable buck voltage nahi aa raha hai buck voltage fluctuation buck voltage kaise check kare buck voltage kya hota hai buck voltage missing buck voltage fluctuation qualcomm buck voltage nahi aa raha hai buck voltage up down problem buck voltage not stable buck voltage up down --- ⚠️ Symptoms of BUCK Voltage Fluctuation: Phone dead or restarting CPU heating Display not working Boot loop Voltage jumps (e.g., 1.2V → 0.85V → 0V intermittently) --- 🔍 Common Causes: 1. Short Circuit on Output Line Capacitor, filter coil, or IC drawing excess current. 2. Corrupt or Damaged PMIC Internal switching fault inside PMIC. 3. Leakage or Partial Short High resistance short not easily detected with normal continuity. 4. Faulty Load Component CPU, RAM, eMMC pulling unstable current. 🔥🔥🔥🔥🔥🔥🔥🪄⚙️⚙️⚙️⚙️⚙️✅️ 🛠️ How to Diagnose (without thermal cam): Tools Needed: Multimeter, DC Power Supply, Rosin/IPA, Hot Air Gun (optional) 1. Check Voltage Stability Power the board with DC Supply. Probe BUCK lines like VREG_L1, VREG_L2, S1_1P2, etc. If they fluctuate (e.g., 0.5V → 1.2V → 0V), suspect short or overload. 2. Check Resistance (Multimeter) Phone OFF, measure resistance between BUCK line and GND. If below 50–499Ω, investigate that line. 3. Use Rosin (without thermal cam) Apply Rosin Pcb ( motherboard )suspected area. Give DC power → observe smoke/evaporation to spot faulty part. 4. Check Line Current on DC Supply If current spikes then drops, PMIC is restarting → trace short. --- ✅ Solution Steps: Fault Type Solution Shorted Cap Remove or replace capacitor Faulty Coil Replace filter coil Dead PMIC Reball or Replace PMIC CPU Short Try low-heat reflow or check for CPU replacement Software Issue Flash correct firmware or bootloader 🎓🎓🎓🎓🎓🎓💯✅️⚙️