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Yuting Zhao编辑

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[* black] Let's see what's on the other side. ''Siri, roll over... Thank you.''
[* red] Qualcomm [http://www.qualcomm.com/products-services/chipsets/mobile-data|MDM6610] chipset (an upgrade from the [guide|4693|iPhone 4's MDM6600|stepid=21254])
[* orange] Apple 338S0973, which appears to be a power management IC, according to Chipworks.
[* yellow] Reading the covered chip at an angle reveals "PM8028," which is a Qualcomm [https://chipworks.secure.force.com/catalog/ProductDetails?sku=QUA-PM8028&viewState=DetailView&cartID=&g=|power management IC].