Just figured this out.
This iPhone 11 came in for no mic during phone calls, but worked in voice memo, rear cam video, selfie video.
So first I assumed sandwich/baseband issue. Which wasn't it.
Then I put the board into my known good housing & mic worked during a call.
I tried a new charging port in the customer's housing & still no sound. Well there was some sound, but sounded really far away.
After some troubleshooting, I found it was the power button flex (mic2) causing it!
I figured it was the power button flex, since I noticed the housing had has the back glass repaired and it's very common for the power button flex to get damaged in that process.
Another interesting thing is the mic works when the power button flex in the customer's housing is unplugged. But mic stops working when you plug it back in.
I'm assuming the damaged flex causes the noise cancellation issues, which then causes the mic not to work at all.
So the lesson here is.. test with known good parts!
If you have a Seek Thermal Cam, you're missing out if you don't have a VCC Seek Stand: https://www.vccboardrepairs.com/buy-seek-stand
Injured Gadgets just got these back in stock, so get them while you can!
It can take us a while to build these out sometimes, so they're sometimes out of stock for a while, but we're working towards always having inventory ready to build more as they sell out.
This stand makes using a thermal cam so easy. So much better than any other thermal solution on the market.
It allows you to get real close up (using my Macro Lens), and easily find where the short is coming from.
Plus it's hard free, so you can have your hands free to try to boot the device from DCPS, while having an image that is in focus & not moving around.
You can even record a video through the app, while you inject voltage into the short, so you can go back & see exactly which component was it that was heating up.
Save yourself lots of time by getting a Seek Cam, Stand & Macro Lens! ...
Anyone who is doing game console repairs, knows how many screws you need to remove to access the motherboard.
Especially the PS5, with the 5,000 screws or so.
If you don't already have an electric screwdriver, GET ONE ASAP.
🌟 Cordless Screwdriver with T9 Bit: https://amzn.to/3E5duCj
🌟Extended T9 Bit: https://amzn.to/3c4YJac
It's rechargeable through micro USB and allows you to easily swap the tips out. You can also fold it to be straight or L shape.
Let me know below if you are already using an electric screwdriver 👇👇
Please can you help me with ipad air 2 ( 4G ) display challenge, the battery was plugged in and I tried to fix the lcd and since no display again even with new lcd, I already tried to throw torchlight on the screen to confirm whether back-light problem or display problem. It's confirmed lcd problem
