When Audio IC is not working properly.
- Unable to record voice
- Other party can't hear you while calling
- Very slow boot up Apple Logo
- Phone is lagging and slow
- No Sound
- You might still have ringtone
In iPhone repair community, we called it iPhone 7 Audio IC Disease.
|Go to VOICE MEMO and click record|
iOS 12 would show this message - Recording Failed. No Audio Device Found.
It would just freeze there and won't start recording
We made a video and how to repair this issue.
Why it happened?
Answer: Drop it too hard, or bend.. One of the solder pad below the Audio chipset is broken. Not 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 same flaw.|
|Let's take off the IC and look closer with microscope|
|C12 - I2S_AP_TO_CODEC_MCLK|
This is very important line that would cause totally malfunction of audio codec.
It controls microphone, and sound codec. You might still have ringtone working but no sound when calling.
|So this is the fix that must be apply before we put Audio IC back|
It can be done in 2 to 4 hours between. Make appointment with us.