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Fix Your Stuff

Right to Repair


Changes to Step #11

Edit by Jeff Suovanen

Edit approved by Jeff Suovanen


Step Lines

[* black] The wee motherboard bears an even wee-er daughterboard layered right on top, where we find the power input connectors and a tiny biometric sensor.
[* black] With a bit of patient spudgering, the boards are disengaged—leaving the motherboard stripped and primed for some primo IC analysis:
[* red] MAX77836—likely micro-USB interface controller and Li+ battery charger
[* orange] 1513E8 E614A6
[* yellow] STMicroelectronics [|STM32F401|new_window=true] Cortex M4 microcontroller
[* green] Samsung KMF5X0005A-A210 512 MB DRAM package with the Qualcomm APQ8026 System on Chip layered beneath
[* blue] Qualcom PM8226 power management IC
[* violet] InvenSense [|MP92M|new_window=true] 9-axis Gyro + Accelerometer + Compass