iPhone 6 Plus has no sound and can not be charged for repair

iPhone 6 Plus has no sound and can not be charged for repair

Machine model: iPhone 6 Plus

iPhone 6 Plus has no sound and can not be charged for repair Figure 1. 

Description: Connect the power supply switch can boot into the system, charging is not normal, and the test shows that the phone has no sound. 
Maintenance process: remove the motherboard and find that it has been repaired at home. There is a resistor R0311(AP_TO_SPKAMP_I2S2_MCLKR) and a filter Capacitor 1408 (PP5v0 _ USB)GND Short bridge on the charging chip. Looking at coder chip, I found that many small pieces fell around the chip. 

iPhone 6 Plus has no sound and can not be charged for repair Figure 2. 

iPhone 6 Plus has no sound and can not be charged for repair Figure 3. 

iPhone 6 Plus has no sound and can not be charged for repair Figure 4. 

iPhone 6 Plus has no sound and can not be charged for repair Figure 5. 

iPhone 6 Plus has no sound and can not be charged for repair Figure 6. 

iPhone 6 Plus has no sound and can not be charged for repair Figure 7. 

iPhone 6 Plus has no sound and can not be charged for repair Figure 8. 

Through inquiring the drawings, it is found that Short bridge Short circuit is the main cause of no sound and no charging. Resolutely deal with the fault location, and make up all the small pieces that fell around coder chip. After installation test, all functions of the system are normal, troubleshooting and maintenance are finished.