24 October 2018

iPhone 7 Plus Audio / Sound problem

iPhone 7 and 7 Plus having audio or sound problem isn't rare.

When Audio IC is not working properly.
Symptoms:
  • Unable to record voice (No audio devices found)
  • Other parties can't hear you when calling
  • Very slow boot-up Apple Logo
  • Phone is lagging and slow
  • No Sound
  • Video record got problem
One of it or you have all the symptoms above, it can be considered the LAST stage of audio "cancer".

Check iPhone 7 Audio IC Repair Cost - 2019 


In iPhone repair community, we called it iPhone 7 Audio IC Disease.

iPhone 7 Sound Problem
Go to VOICE MEMO and click record
iOS 12 would show this message - Recording Failed. No Audio Device Found.
or
It would just freeze there and won't start recording



We made a video and how to repair this issue. 





Why it happened?
Because you drop it too hard or bend it... One of the solder joints or solder pad below the Audio chipset is broken.
Not entirely your fault. It's their design problem and they didn't expect it. Don't worry, it can be fixed permanently.




"Advise: DO NOT send to normal shop repair this issue. The audio ic is located behind Baseband and CPU. You don't want the they ended up to tell you now got another problem or became a brick which totally unable to POWER ON. 
Of so many cases that i repaired their failed attempted job. They "accidentally" overheated the components around. They either caused the iPhone became No Service (Baseband shorted) or unable to power on (CPU shorted).

Ended up at higher cost repair and time wasted."
This photo is an iPhone 7 Plus. The smaller iPhone 7 also has the same flaw.



Let's take off the IC and look closer with a microscope



iphone 7 c12
99% of audio disease is because of this pad broken. Even it's not missing, we MUST still need to build a new track for it. I saw a lot technician didn't rebuild this track and the customer keep coming back with the same problem.

Technical term of this method is called "jumper".

Jumper it to the Resistor R1103


C12 - I2S_AP_TO_CODEC_MCLK
This is a very important line that would cause malfunction of the audio codec totally.
It controls the microphone and sound codec. You might still have ringtone working but no sound when calling.


iPhone 7 Plus audio ic repair
So this is the fix that must be applied before we put Audio IC back


iPhone 7 audio sound ic repair
We still can see the green PCB glue on that area after repair.
If this iPhone suffers another serious fall damage again, it would still be working fine.
The screen should be broken first before this problem reoccurs again.

Don't worry. The solution we apply is a permanent fix method. We'll cover you this problem for 1 year if it happens again.



"Having the tools to repair doesn't mean also having
precise surgical skill and experience.
"
 

Done!
It can be done in 2 to 4 hours between.
Click here to inquiry