はじめに

Repairability assessment performed on HP Pro x2 612 G2 for HP.

  1. Front and back of device.
    • Front and back of device.

    • Plastic rear panel is rugged and should be able to take a beating without deforming or cracking.

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  2. SIM/SD tray removal.
    • SIM/SD tray removal.

    • Removable/expandable storage is good news for upgradability.

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    • The rear panel is immediately removable without any tools; the kickstand need only be flipped up to reveal the notch for prying.

    • The cover is soft and secured with clips that are strong and flexible enough to endure many opening and closings.

    • Nothing is mounted to the rear cover to the inside of the rear cover, so there are no cables to disconnect.

      • Rather than mount the fingerprint reader to the rear cover, it has a pass-through hole to allow access.

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    • The battery can be immediately disconnected, making for safer repairs, but cannot be immediately removed, which is unfortunate for a consumable component.

    • Components that can be accessed and removed immediately after removing rear panel:

      • Kickstand—simply secured with some T5 screws

      • SSD—standard blade-style, secured with a single screw

      • Wi-Fi module—secured with a single screw

      • Fingerprint reader and interconnect board—adhered to the midframe and connected via ZIF, fairly easy to remove, modular component

      • NFC antenna—adhered to midframe, connected via ZIF, fairly simple to remove

      • Rear-facing camera—including flash assembly, adhered with metallic tape that should be transferred to a new unit.

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    • The display is pushed off of the midframe with a thin tool through small slots. No adhesive is used to secure the display to the body—instead a combination of clips and screws does the job.

    • The display and digitizer cables connect the display to the rest of the device, but are long enough to allow fully opening and folding the display over before disconnecting.

    • The display carries no real components other than some magnets, USB port strengthening bracket, and some display boards. This makes for a faster, cheaper repair, with fewer extra components to buy or transfer to a new display.

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    • Battery can now be safely removed; it is only secured with a few screws. Also removable at this point:

      • Front-facing camera—lightly adhered with metallic tape

      • Microphone board—wedged into the top of the midframe, fairly simple to wiggle out.

      • Digitizer cable

      • USB-C strengthening bracket—secured with screws, good reinforcement for a common point of failure.

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    • System board can then be removed, but only after disconnecting several cables that are accessible through cutouts in the other side of the midframe, and removing screws.

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    • From the system board the following are removable:

      • Heatsink/EMI shield is attached with two screws and some clips and can be removed to reapply thermal paste.

      • POGO connector cable

      • Display cable, and attached Hall effect sensor cable.

    • The headphone jack, USB-C and USB-A ports, and SD card slot are soldered to the system board. Replacing these high-wear components is made more expensive by their permanent home on the system board.

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    • Remaining components can be removed from midframe:

      • Speakers—the adhered antennas make removal a little annoying and may require replacement adhesive

      • Antennas—the adhesive securing them to speakers and midframe/card reader bracket is an annoyance, particularly because the copper tape should be replaced exactly, lest the shielding be compromised.

      • Smart card reader bracket—simple to remove from the board, but harder to remove the antenna adhesive from it.

      • Smart cardreader board—simply secured with screws, bare modular component.

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    • HP Pro x2 612 G2 Repairability Score: 9 out of 10 (10 is the easiest to repair):

      • All screws are standard T5 Torx, Phillips #1, or Phillips #0.

      • Manufacturer provided repair documentation takes the guesswork out of repair.

      • The device is fairly modular, but complex construction makes common repairs more difficult than they should be.

      • The flash storage is a standard M.2 card and can be easily upgraded or replaced, but the RAM is soldered to the motherboard, not uncommon for mobile devices.

      • The display and digitizer are fused, simplifying repair but increasing the cost of an LCD or front glass replacement.

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まとめ

To reassemble your device, follow these instructions in reverse order.

Sam Lionheart

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