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crwdns2933797:0Jeff Suovanencrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Jeff Suovanen
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+ | [* black] Let's check out these logic board [guide|126000|sandwiches|stepid=243561|new_window=true]. For reference, the US version is on top in these images, EU below. (Don't read into it—that's just how the chips fell.) |
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+ | [* black] First, the similarities—the US and EU ''upper'' sections are identical and have the same spread of chips on both sides. |
+ | [* black] The ''lower'' sections are a bit more interesting. (Note: SIM readers are the same, but we only desoldered it from the US version.) Here's where the US board starts accommodating all that mmWave tech: |
+ | [* red] An extra socket, which connects to the front mmWave antenna mentioned in the previous step |
+ | [* orange] A Murata 1XR-482 mmWave front-end module |
+ | [* yellow] A Qualcomm SMR526 intermediate frequency IC, working in conjunction with Qualcomm's SDX55M 5G modem |
+ | [* green] One more mmWave antenna right on the board |
+ | [* light_blue] A flex cable soldered to this patch, which connects to the side edge mmWave antenna |
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