Infinix Note 5 Power On Off & Volume Keys Problem Solution | Keypad Hardware Fix
Infinix Note 5 me agar power button kaam nahi kar raha, phone on off nahi ho raha, volume up down keys response nahi de rahi, ya keys short ho rahi hain, to ye complete board level repair guide aap ke liye hai.
Is tutorial me side key strip checking, key line continuity test, key resistor network, power key signal line aur jumper solution step by step explain kiya gaya hai. Multimeter se voltage testing aur short detection detail me bataya gaya hai.
Ye professional mobile repairing hardware training video technicians ke liye specially design ki gayi hai.
⚠️ Repair se pehle battery disconnect karein aur short circuit se bachne ke liye proper tools use karein.
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🛠️ Step By Step Repair Guide (Professional)
1️⃣ Basic Checking
✔️ Side key strip change karke test karein
✔️ Physical button damage inspect karein
✔️ Key area clean karein
✔️ Software hard reset try karein
2️⃣ Continuity & Voltage Testing
Power key signal line check
Volume up line continuity test
Volume down line continuity test
Ground line confirm karein
Short to ground detect karein
3️⃣ Hardware Troubleshooting
✔️ Key strip flex cable check karein
✔️ Broken PCB track identify karein
✔️ Key resistor ya filter check karein
✔️ IC side signal line verify karein
4️⃣ Jumper Solution
Power key signal jumper
Volume up line jumper
Volume down line jumper
Ground pad repair
Thin jumper wire + proper flux use karein
5️⃣ Final Testing
Power on off test
Volume up down test
Screenshot key combo test
Recovery mode key test
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