Introduction
Prerequisite-only guide! This guide is part of another procedure and is not meant to be used alone.
Use this guide to remove the complete left bumper assembly (L1) on a Steam Deck.
Tools
Parts
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Use a Phillips driver to remove the eight screws securing the back cover:
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Four coarse thread 9.5 mm-long screws
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Four fine thread 5.8 mm-long screws
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Insert an opening pick into the thin gap between the back cover and the front shell, along the edge of the right grip.
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Pry up on the back cover to release it from the locking clips.
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Grip the back cover at the opening you just created and pull it up and away from the device to unclip the long edges.
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Remove the back cover.
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Use a pair of tweezers to remove the piece of foil tape covering the hidden screw on the board shield.
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Use a Phillips driver to remove the three screws securing the board shield:
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One 3.4 mm screw
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Two 3.7 mm screws
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Grip the battery cable by its pull tab and pull it directly away from the motherboard to disconnect it.
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Place the flat end of a spudger onto the inside edge of the trigger's left clip.
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Pivot the trigger clip out, away, and up from the peg to unlatch it.
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Use the pointed end of a spudger to lift up the small locking flap on the thumbstick cable's ZIF connector.
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Use a pair of tweezers to slide the cable out of its connector.
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Use the pointed end of a spudger to lift up the small locking flap on the button board interconnect cable's ZIF connector.
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Use a pair of tweezers to slide the cable out of its connector.
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If any connectors are covered with tape, use a pair of tweezers to remove it.
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Use the pointed end of a spudger to lift up the small locking flaps on the rest of the button board ZIF connectors. Use a pair of tweezers to slide the cables out of their connectors:
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Disconnect the D-pad cable.
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Disconnect the touchpad board cable.
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Disconnect the touchpad cable.
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Use a Phillips driver to disconnect the four screws securing the left button board:
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Three 5.2 mm screws
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One 3.9 mm screw
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To reassemble your device, follow these instructions in reverse order.