02-01-2020, 12:50 AM
I found two good images of my phone's logic board on ebay. The positioning of the logic board inside the phone was estimated from a teardown video. The rear side of the board with all six accelerometer position estimates plotted to scale are shown here.
Only three of the positions were on the logic board and only two of those landed on a chip. The IMU chip used on my phone is a LSM6DSL. The data sheet for the LSM6DSL gives it's size as 2.5 mm by 3.0 mm by 0.8 mm. This matches the size of the chip that the accelerometer minus bias position estimates fell on. I'm fairly confident that this is the accelerometer/gyro chip. The front side of logic board is shown below with the three positions estimates that landed on the board. None of these positions landed on a chip for this side of the board.
Only three of the positions were on the logic board and only two of those landed on a chip. The IMU chip used on my phone is a LSM6DSL. The data sheet for the LSM6DSL gives it's size as 2.5 mm by 3.0 mm by 0.8 mm. This matches the size of the chip that the accelerometer minus bias position estimates fell on. I'm fairly confident that this is the accelerometer/gyro chip. The front side of logic board is shown below with the three positions estimates that landed on the board. None of these positions landed on a chip for this side of the board.