简介
Follow this guide to replace the I/O (input/output) board in your Lenovo ThinkPad T16 Gen 3 laptop.
The I/O board includes the ethernet and USB ports as well as the SIM card tray. If you're having issues with either of the ports, or their connections are loose, you may need to replace the I/O board. If you're having issues with the ports on the left side of your laptop, you may need to replace the motherboard.
If your RJ45 ethernet flap is broken, follow this guide instead.
The Lenovo part number for the I/O board is 5C51P67045.
你所需要的
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Completely shut down your laptop (don't just put it in sleep mode) and disconnect all cables.
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Flip the laptop upside-down, and rotate it so the screen hinge faces towards you.
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Use a Phillips screwdriver to fully loosen the seven captive screws securing the base cover.
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Insert your fingernail or an opening pick into the gap between the base cover and keyboard deck, next to one of the screen hinges.
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Pry up the base cover until the clips unfasten.
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Grasp the base cover along the screen hinge edge and lift slowly to unfasten the remaining clips.
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Lift and remove the base cover.
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Use a Phillips screwdriver to fully loosen the two captive screws securing the battery connector.
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Lift the edge of the battery with the connector to disconnect it.
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Remove the battery
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Slide the plastic tabs on the long edge of the battery into their recesses in the frame.
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Lower the battery into place so the connector goes over its socket.
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在这个步骤中使用的工具：iFixit Precision 4 mm Screwdriver Bit$2.99
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Insert a SIM card eject tool, bit, or a straightened paperclip into the hole on the SIM tray, located next to the USB and ethernet ports.
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Press in firmly until the tray ejects.
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Use your fingers to remove the tray.
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Use a clean fingernail or the flat end of a spudger to flip up the locking flap on the interconnect cable ZIF connector, located on the I/O board.
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Use tweezers or your fingers to grip the cable's plastic pull tab and gently pull the cable out of its socket.
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Insert the flat end of a spudger under a short edge of the interconnect cable press connector located on the motherboard and pry up to disconnect it.
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Remove the interconnect ribbon cable from your laptop.
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Use your fingernail or the flat end of a spudger to flip up the locking flap on the fingerprint cable ZIF connector, located on the I/O board.
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Use tweezers or your fingers to grip the cable's plastic pull tab and pull the cable out of its socket.
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在这个步骤中使用的工具：Tesa 61395 Tape$2.99
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Slide the flat end of a spudger under the PCB on the fingerprint reader cable and pry up to separate the adhesive securing it.
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Use a Phillips screwdriver to remove the two 8 mm‑long screws securing the ethernet flap.
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Use a Phillips screwdriver to remove the 4 mm‑long screw securing the ethernet flap and I/O board.
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Grasp the I/O board by its edges and pull it straight up to remove it from the laptop.
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Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.
To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.
To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
