How to Repair Mobile Mic Not Working Issue – Complete Guide
How to Repair Mobile Mic Not Working Issue – Complete Guide
Mobile mic kaam na karna ek common problem hai jo har technician ke paas rozana aati hai. Customer ke liye ye masla chhota lagta hai lekin phone ki basic communication ability khatam kar deta hai – na call mein awaz jati hai, na voice notes record hote hain, aur na hi video recording mein sound hota hai. 😓
Is guide mein main aapko step by step mic issue diagnosis aur repair process samjhata hoon jo practically har workshop mein kaam aati hai.
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🧠 Mobile Mic Issue Ki Wajehain
Mic kharab hone ki wajah hamesha hardware nahi hoti. Kabhi kabhi simple software glitches bhi responsible hote hain. Chaliye common causes dekhte hain:
🔹 Software Issues
Temporary software bugs ya OS glitch
App-specific mic block (e.g. WhatsApp, Messenger permission issue)
Mic permission disable hona in settings
Firmware crash ya corrupted OS
🔹 Hardware Issues
Dust, moisture, ya corrosion mic hole mein jam jana
Mic IC (audio codec IC) faulty hona
Mic pad / track toot jana (board level damage)
Mic khud short/open ho jana
Water damage ke baad mic ki corrosion
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🛠️ Step by Step: Mobile Mic Issue Diagnosis
1️⃣ Software Check (Always First)
✔ Restart the phone (temporary glitches fix ho jate hain).
✔ Mic test karo by recording voice note aur video. Agar ek app mein chal raha hai aur doosri mein nahi → issue software side hai.
✔ Settings → Apps → Permissions → Mic access check karo.
✔ Agar issue barqarar hai to firmware flash/update karke test karo.
👉 Agar software se fix ho jaye to board kholne ki zarurat nahi.
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2️⃣ Hardware Inspection
Agar software clean hai, ab hardware par aayen:
✔ Back cover khol kar mic hole ko brush aur IPA se clean karein.
✔ Agar mic removable (through-hole type) hai to continuity test karo.
✔ Mic ka resistance/diode reading check karo vs ground. Normal reading ~0.3–0.6V hoti hai (model dependent).
✔ Agar reading abnormal hai (0.00 ya infinite) → mic faulty.
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3️⃣ Jumper & Track Testing (Board Level Repair)
Mic ke dono pads check karo – ek line GND hoti hai aur ek signal line (towards audio IC).
Agar signal pad open hai, to schematic/diagram follow karke jumper lagao.
Jumper sirf high quality wire se karo aur neat finishing rakho.
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4️⃣ Mic Replacement (Final Solution)
Agar mic khud kharab hai to naya mic replace karo:
1. PCB ko microscope ke neeche rakho.
2. Old mic ko hot air (320–350°C, low airflow) se remove karo.
3. Pads ko clean aur flux lagao.
4. New original mic place karo (orientation note karein).
5. Solder karne ke baad continuity test aur audio test karo.
👉 Replacement ke baad phone ko assemble karke call, voice note aur video recording mein test zaroor karein.
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🧩 Pro Tips for Technicians
✔ Mic replacement mein hamesha original parts use karo, local cheap mics sound quality kharab kar dete hain.
✔ Agar water damage hai to pehle full board cleaning + drying karo. Sirf mic replace karna long-term kaam nahi karega.
✔ Board par jumper karte waqt zyada heat mat do – nearby SMD parts damage ho sakte hain.
✔ Customer ko suggest karo ke sasta earphone/mic use na karein, ye mic IC damage karte hain.
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❌ Common Mistakes to Avoid
Software test skip karke direct mic change kar dena (waste of time & part).
Mic ko ulta solder karna (no sound at all).
Track damage hone par bina diagram ke random jumper karna.
Moisture wali board par bina clean kiye mic lagana.
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✅ Conclusion
Mobile mic issue repair ek systematic process hai – pehle software check karo, phir cleaning, phir continuity test aur end mein replacement/jumper. Zyada cases mein dust, moisture ya faulty mic component responsible hota hai. Proper tools + careful work se ye masla asaan aur profit-friendly repair ban jata hai. 👍🔧
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📌 Meta Description (SEO)
Learn how to repair mobile mic not working issue with step-by-step diagnosis, software checks, cleaning, jumper tricks, and safe mic replacement guide for technicians.
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🔖 Tags
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