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    • To minimize risk of damage, turn on your Steam Deck and allow the battery to discharge below 25% before starting your repairs. A charged lithium-ion battery can be very dangerous if accidentally punctured.

    • Before starting this guide, power down your Steam Deck and unplug any cables.

    • As an extra precaution, Valve recommends putting your Steam Deck into battery storage mode within the BIOS before starting any internal repairs. Read how to do that here.

    • If you have a microSD card installed, make sure to remove it before opening the Steam Deck.

    • Use a Phillips driver to remove the eight screws securing the back cover:

    • Four 9.5 mm screws

    • Four 5.8 mm screws

    • Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your Steam Deck.

  1. Steam Deck Left Button Board Replacement, Unclip the back cover: 步骤 2 中的图像 1,2 Steam Deck Left Button Board Replacement, Unclip the back cover: 步骤 2 中的图像 2,2
    • Insert an opening pick into the thin gap between the back cover and the front shell, along the edge of the right grip.

    • Pry up on the back cover to release it from the locking clips.

  2. Steam Deck Left Button Board Replacement, Remove the back cover: 步骤 3 中的图像 1,3 Steam Deck Left Button Board Replacement, Remove the back cover: 步骤 3 中的图像 2,3 Steam Deck Left Button Board Replacement, Remove the back cover: 步骤 3 中的图像 3,3
    • Once the clips are disconnected from one edge, the rest disconnect easily.

    • Grip the back cover at the opening you just created and pull it up and away from the device to unclip the long edges.

    • Remove the back cover.

  3. Steam Deck Left Button Board Replacement, Uncover the hidden shield screw: 步骤 4 中的图像 1,2 Steam Deck Left Button Board Replacement, Uncover the hidden shield screw: 步骤 4 中的图像 2,2
    • Use a pair of tweezers to remove the piece of foil tape covering the hidden screw on the board shield.

    • If possible, try not to rip or tear this tape so it can be reused. If necessary, you can fashion a replacement by cutting a piece of aluminum foil tape to fit.

  4. Steam Deck Left Button Board Replacement, Remove the shield screws: 步骤 5 中的图像 1,1
    • Use a Phillips driver to remove the three screws securing the board shield:

    • One 3.4 mm screw

    • Two 3.7 mm screws

  5. Steam Deck Left Button Board Replacement, Remove the shield: 步骤 6 中的图像 1,2 Steam Deck Left Button Board Replacement, Remove the shield: 步骤 6 中的图像 2,2
  6. Steam Deck Left Button Board Replacement, Disconnect the battery: 步骤 7 中的图像 1,3 Steam Deck Left Button Board Replacement, Disconnect the battery: 步骤 7 中的图像 2,3 Steam Deck Left Button Board Replacement, Disconnect the battery: 步骤 7 中的图像 3,3
    • Grip the battery cable by its pull tab and pull it directly away from the motherboard to disconnect it.

    • Alternatively, use the flat end of a spudger to gently push the connector out of its socket, then disconnect it completely by hand.

  7. Steam Deck Left Button Board Replacement, Unclip the left trigger: 步骤 8 中的图像 1,2 Steam Deck Left Button Board Replacement, Unclip the left trigger: 步骤 8 中的图像 2,2
    • The left trigger will be on your righthand side when working on the Steam Deck, as it's laying upside down.

    • The Steam Deck's triggers clip into place on two pegs on the trigger bracket, which doubles as the hinge.

    • Place the flat end of a spudger onto the inside edge of the trigger's left clip.

    • Pivot the trigger clip out, away, and up from the peg to unlatch it.

    • During reassembly, latch the outermost peg first. Once in place, push down on the trigger to latch the innermost peg, producing an audible "click" sound.

    • Check to make sure that the trigger spring is properly aligned. Test the trigger action before continuing reassembly.

  8. Steam Deck Left Button Board Replacement, Remove the left trigger: 步骤 9 中的图像 1,2 Steam Deck Left Button Board Replacement, Remove the left trigger: 步骤 9 中的图像 2,2
    • Remove the left trigger.

    • Take care to not lose the trigger spring. It press-fits onto a peg on the trigger's underside.

  9. Steam Deck Left Button Board Replacement, Remove the trigger bracket screws: 步骤 10 中的图像 1,1
    • Use a Phillips driver to remove the three 5.2 mm screws securing the left trigger bracket.

  10. Steam Deck Left Button Board Replacement, Remove the trigger bracket: 步骤 11 中的图像 1,1
    • Remove the left trigger bracket.

    • Replacement triggers require calibration to work as expected. To calibrate new triggers, follow this calibration guide.

  11. Steam Deck Left Button Board Replacement, Disconnect the left thumbstick: 步骤 12 中的图像 1,3 Steam Deck Left Button Board Replacement, Disconnect the left thumbstick: 步骤 12 中的图像 2,3 Steam Deck Left Button Board Replacement, Disconnect the left thumbstick: 步骤 12 中的图像 3,3
    • Use the pointed end of a spudger to lift up the small locking flap on the thumbstick cable's ZIF connector.

    • Use a pair of tweezers to slide the cable out of its connector.

    • Grip the cable by the blue pull tab, not by the cable itself.

  12. Steam Deck Left Button Board Replacement, Remove the thumbstick screws: 步骤 13 中的图像 1,2 Steam Deck Left Button Board Replacement, Remove the thumbstick screws: 步骤 13 中的图像 2,2
    • Use a Phillips driver to remove the three 5.2 mm screws securing the thumbstick.

    • During reassembly, you may need to hold the Steam Deck off of the work surface so it isn't resting on the new thumbstick while you tighten down the screws.

  13. Steam Deck Left Button Board Replacement, Remove the left thumbstick: 步骤 14 中的图像 1,2 Steam Deck Left Button Board Replacement, Remove the left thumbstick: 步骤 14 中的图像 2,2
    • Remove the left thumbstick.

  14. Steam Deck Left Button Board Replacement, Disconnect the interconnect cable: 步骤 15 中的图像 1,3 Steam Deck Left Button Board Replacement, Disconnect the interconnect cable: 步骤 15 中的图像 2,3 Steam Deck Left Button Board Replacement, Disconnect the interconnect cable: 步骤 15 中的图像 3,3
    • Use the pointed end of a spudger to lift up the small locking flap on the button board interconnect cable's ZIF connector.

    • Use a pair of tweezers to slide the cable out of its connector.

    • Grip the cable by the blue pull tab, not by the cable itself.

  15. Steam Deck Left Button Board Replacement, Disconnect the remaining button board cables: 步骤 16 中的图像 1,3 Steam Deck Left Button Board Replacement, Disconnect the remaining button board cables: 步骤 16 中的图像 2,3 Steam Deck Left Button Board Replacement, Disconnect the remaining button board cables: 步骤 16 中的图像 3,3
    • 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:

    • Disconnect the D-pad cable.

    • Disconnect the touchpad board cable.

    • Disconnect the touchpad cable.

  16. Steam Deck Left Button Board Replacement, Disconnect the left haptics: 步骤 17 中的图像 1,3 Steam Deck Left Button Board Replacement, Disconnect the left haptics: 步骤 17 中的图像 2,3 Steam Deck Left Button Board Replacement, Disconnect the left haptics: 步骤 17 中的图像 3,3
    • Exercise caution when lifting this connector—pry up on the connector itself, not its housing.

    • Use the pointed end of a spudger to lift up on the haptics cable to disconnect it.

  17. Steam Deck Left Button Board Replacement, Remove the button board screws: 步骤 18 中的图像 1,1
    • Use a Phillips driver to disconnect the four screws securing the left button board:

    • Three 5.2 mm screws

    • One 3.9 mm screw

  18. Steam Deck Left Button Board Replacement, Remove the button board: 步骤 19 中的图像 1,2 Steam Deck Left Button Board Replacement, Remove the button board: 步骤 19 中的图像 2,2
    • Remove the left button board.

    • Keep track of the Steam button and its membrane, as once the left button board is removed, they're no longer secured in place.

结论

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 Steam Deck answers community for help.

Carsten Frauenheim

于2020年03月10日注册

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21条评论

Is the button board available for purchase, or planned to be available for purchase? My steam deck took a tumble and busted the left bumper button that the bumper presses.

boop pert - 回复

I also have the same problem as boop pert.

I'd like to know if the board with be available as the Left Bumper is non functional now and needs to be replaced entirely.

Aaron Latta - 回复

Got the same problem, my steam deck fall and broke the L1 internal button , and as i see is attached to the left button board. Is there any ETA to have this part available ? Thanks !

Jordi Fernández - 回复

Is there anything i can do if my problem comes from Left Button Motherboard ? Is there any replacement for Left Button Motherboard ? Any news about that ?

Jordi Fernández -

I have my L1 button not responding anymore. After checking, I could see that it comes from the board itself. I have the same question that above me.

Will this board be available for purchase soon? If not, do you think that valve will still replace it if I send to the after sales service? Thanks

Tarek Elmeskine - 回复

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