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Solution: iPhone 6 Plus Speaker Problem

Received an iPhone 6 Plus with speaker problem, there is no sound on speaker when the owner receives a call or play music. How to solve this problem? This article will help you!

Diagnosis Process:

1. Check the current and voltage between the iPhone tail plug and audio
2. Replace the iPhone audio IC
3. Check the line from audio to iPhone CPU to see if it is normal
Repair Process:
1. Use JM-9102 Disassemble Tools to replace the iPhone rear shell assembly, and then test it, the fault still exists.
2. Use Fluke 15B+ multimeter to measure the resistance value from tail plug socket to small audio, all is normal.
3. Remove the small audio and then measure the line from small audio to iPhone A8 CPU. After measuring the diode data of SPKAMP_RESET_L, we found its data showed infinity, it may be caused by the disconnection or CPU virtual welding. In this step, WUXINJI schematic diagram will help you a lot.
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4. After communicating with the customer and stating the risk, we can start to pry the iPhone CPU by S1018 CPU remove tool and use QUICK 861DW rework station to solder the jump wire.
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After finish the above step, assemble the iPhone 6 Plus, turn it on and test it, now the caller ringing is back to normal, this iPhone 6 Plus has been repaired!
Read more mobile phone fix knowledge on www.vipfixphone

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