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Changes to Step #7

Edit by Jeff Suovanen

Edit approved by Jeff Suovanen

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After
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[* black] The trackpad is trapped under tape and a metal shield, but it's nothing we haven't handled before.
+[* black] We take a moment to check the silicon before releasing this trackpad into the wild:
[* red] NXP/Freescale [http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/k-series-performance-m4/k2x-usb/kinetis-k22-120-mhz-cost-effective-full-speed-usb-microcontrollers-mcus-based-on-arm-cortex-m4-core:K22_120|MK22FN512|new_window=true] Kinetis K22-120 MHz ARM Cortex-M4 Core MCU
[* orange] Synaptics S9101B touch controller (as seen in the [guide|51972|Surface Book|stepid=113718|new_window=true])