How to Fix OnePlus 7T Mic Speaker & Buzzer Problem Solution | No Sound Hardware Fix in Urdu Hindi
In this detailed video, learn how to fix OnePlus 7T mic, speaker, and buzzer problems. If your OnePlus 7T has no sound during calls, mic not working, or buzzer not ringing, this hardware repair guide covers mic flex cable checks, speaker testing, buzzer inspection, and audio IC troubleshooting. Step-by-step explained in Urdu Hindi for mobile repair technicians and DIY enthusiasts.
📌 Covered Topics:
OnePlus 7T mic not working
Speaker no sound issue
Buzzer silent or no ring problem
Audio IC testing and repair
Jumper and hardware fix solutions
🔧 30 Step-by-Step Instructions
Power off the OnePlus 7T device.
Remove SIM tray and back cover carefully.
Disconnect the battery connector.
Remove screws and shields to access the motherboard.
Locate the mic flex cable and connector.
Inspect the mic flex cable for damage or cuts.
Clean mic connector pins with isopropyl alcohol (IPA).
Test mic flex cable continuity with a multimeter.
Check microphone voltage supply lines on the motherboard.
Replace mic flex cable if faulty.
Locate the speaker connector and test continuity.
Check speaker module for physical damage.
Test speaker voltage lines.
Replace speaker if necessary.
Locate buzzer connector and test continuity.
Check buzzer voltage supply.
Replace buzzer if faulty.
Inspect audio IC for cold solder joints.
Reflow audio IC solder joints if needed.
Replace audio IC if repair does not fix issue.
Check for broken or corroded traces near audio components.
Use jumper wires to repair broken audio lines.
Test mic using a working mic component if available.
Test speaker by playing ringtone or music.
Test buzzer by toggling silent mode or alarms.
Check phone software mute or volume settings.
Reset phone settings if software issue suspected.
Reassemble device carefully.
Connect battery and power on device.
Final test of mic, speaker, and buzzer functionality.
🔖 Hashtags
#OnePlus7TMicProblem #OnePlus7TSpeakerFix #OnePlus7TBuzzerIssue #MobileRepairUrduHindi #OnePlus7TAudioFix #MicSpeakerRepair #AudioICRepair #OnePlusHardwareSolution #MobileRepairGuide #UrduHindiRepair