Sorry that this reply is literally two years late, but you can’t fix a single chip on a board like this without some talented microsoldering. I’d just get a new device.
Well, an IMU is for gyroscopic measurement and acceleration and stuff. That means that it would have to be mounted to the thing that’s moving, which is the ring. That would unbalance the ring and make it hard for the IMU to rotate freely and still be attached to the board. IMU’s just aren’t used for rotational measurement.
So that leaves a few kinds of positional sensors, and I’ll focus on optical and magnetic. Most of the magnetic ones measure the position of a specific rotating axis, so they have an axle sticking out of them. This isn’t practical for the nest, because the ring would have to be mounted to this axle. The ring doesn’t go through the center of the device in the first place. It’s a ring.
Optical sensors just make the most sense. They look at the inside of the ring as it scrolls. They don’t need an axle or any crazy hardware, just a good position to view the inside of the ring.
I’d honestly just buy a new calculator or a broken one that you can get the screws from. This teardown was just for fun.
Hey, the display is somehow soldered to a flexible PCB which is soldered to the motherboard. They’re permanently adhered together. You should just buy a new calculator since these are so cheap.
It is integrated inside of the A12 SoC.
melting a circuit board apart is hard, and stuff gets shifted.
This phone is really similar to the X, but the battery thing is interesting.
It’s IR. Human eyes can’t see it, so unlocking with Face ID is essentially just staring at it, and from the user’s perspective, it magically unlocks. No visible flashing here!
You’re going to have to realign them all manually. Also, I’m pretty sure you could, but use it sparingly.
I don’t see why you ever would, and it would be hard to find the proper connectors.
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