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Introduction

Follow this guide to replace, upgrade, or change the back cover (aka back shell, bottom shell, or bottom cover) on your Steam Controller (2nd Gen, 2026).

You may want to change the back cover for customization, a new color, or if it's cracked.

Note: The L4, L5, R4, and R5 buttons are plastic-riveted to the back cover. In order to replace any of these buttons, you you must replace the back cover.

What you need

Step 1 Before you begin

Steam Controller (2nd Gen, 2026) Back Cover Replacement, Before you begin: step 1, image 1 of 3

Steam Controller (2nd Gen, 2026) Back Cover Replacement, Before you begin: step 1, image 2 of 3

Steam Controller (2nd Gen, 2026) Back Cover Replacement, Before you begin: step 1, image 3 of 3

Let your controller's battery drain below 25% before starting this repair.
Unplug all cables and accessories from the controller, including the Steam Controller Puck.
During your repair, it can be helpful to lay the Steam Controller on a clean, soft cloth for stabilization and to prevent scratches.

Edit

Step 2 Remove the back cover screws

Steam Controller (2nd Gen, 2026) Back Cover Replacement, Remove the back cover screws: step 2, image 1 of 2

Steam Controller (2nd Gen, 2026) Back Cover Replacement, Remove the back cover screws: step 2, image 2 of 2

Tool used on this step:

TR6 Torx Security Screwdriver

$5.99

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Use a T6 Torx screwdriver to remove the seven screws securing the back cover.
To reach some of the screws you'll need a skinny, long-shank screwdriver.
Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from.