Steam Deck: Difference between revisions

Steam Deck
Manufacturer	Valve
Code name
Release date	February 25, 2022
Device type	Game Console

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Latest revision as of 13:51, 17 October 2024

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Guides

Explanatory Guides

	Type	Difficulty
Steam Deck Mainboard Testing Points

Repair Guides

	Affects part	Type	Difficulty
Steam Deck - Flash MCU on controller board R rev. B	Controller board revision B; R7FA4E10B2CFM; R7FA4E10D2CFM	Software	1. Easy
Steam Deck - Power Button: Middle pad ripped off	Steam Deck LCD Mainboard	Soldering Part replacement BGA	3. Hard
Steam Deck - Replace shoulder switch R1/L1	Controller Board	Soldering Part replacement	2. Medium
Steam Deck - dump/modify controller board firmware	Controller board revision B; R7FA4E10B2CFM; R7FA4E10D2CFM	Software	2. Medium
Steam Deck No power after NVME Replacement Repair	Motherboard		3. Hard
Steam Deck Not Charging Repair	Motherboard	Soldering	3. Hard

Create a Guide

Device pictures

Steam Deck
Steam Deck

PCB pictures

Please consider contributing pictures to this section!

Controller Board pictures
ButtonBoard Rev. B - R back side
ButtonBoard Rev. B - L back side

Reference measurements (also schematics if available)

Thermal Pad size
- Thermal pad size on Steam Deck LCD Motherboard. left (blue): charging ic pad, 5.4mm x 5.4mm x 4.5-5mm (squishy)
Schematics of the rev. B controller board (incomplete)
Power delivery IC of the rev B controller board
Right trigger circuit of the rev B controller board
Some connections of the RA4E1 MCU of the rev B controller board
Rumble circuit of the rev B controller board
Debug connector (TC-2050) of the rev B controller board
R1(Shoulder)/R4/R5/"..." Button circuit of the rev B controller board
FFC connectors (USB and connection to L board) of the rev B controller board
Schematic for the mode-switch circuit to switch the MCU to programming mode - rev B board (Renesas MCU)

More Information/External Sources

iFixit provide a good chip diagram link: https://www.ifixit.com/Guide/Steam+Deck+Chip+ID/147811

Steam Deck OLED Chip ID (Chips on the controller boards are identical on OLED and LED versions - at least on controller boards with the Renesas MCU): https://www.ifixit.com/Guide/Steam+Deck+OLED+Chip+ID/167632

Steam Deck APU Deep Dive (Die Shots) https://www.youtube.com/watch?v=ERm1StY-4uY

Official Steam Deck CAD File: https://gitlab.steamos.cloud/SteamDeck/hardware

GamerNexus Steam Deck Hardware Analysis Video: https://www.youtube.com/watch?v=NeQH__XVa64

GamerNexus Steam Deck VRM Analysis: https://www.youtube.com/watch?v=dlsJB3narnk

Steam Deck Hardware Info: https://github.com/NKkrisz/Steam-Deck-Hardware

Recover Corrupt BIOS Through Crisis Mode: https://www.stanto.com/steam-deck/how-to-update-or-flash-your-steam-deck-bios-from-crisis-mode/

Unbrick Steam Deck BIOS Without A Backup: https://www.stanto.com/steam-deck/unbricking-your-steam-deck-without-a-bios-backup/

Unlocking The Steam Deck BIOS: https://www.stanto.com/steam-deck/how-to-unlock-the-lcd-and-oled-steam-deck-bios-for-increased-tdp-and-other-features/

MAX77958 USB-C PD Controller Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max77958.pdf

CS35L41 Audio Amp IC: https://www.cirrus.com/products/cs35l41/

P13USB102 USB 2.0 IC: https://www.diodes.com/assets/Datasheets/PI3USB102.pdf

MAX77961 USB-C Charging IC: https://www.analog.com/en/products/max77961.html

ANX7580 Display IC: https://www.analogix.com/en/system/files/AA-004748-PB-1-ANX7580_0.pdf

Headphone Jack: id: PJ-203B (brand: WNRE): https://www.ifixit.com/Answers/View/768877/When+will+a+replacement+audio+board+be+available

@@ Line 5: / Line 5: @@
 ==Guides==
 {{List Guides}}
 ==Device pictures==
 <gallery showthumbnails="1">
@@ Line 14: / Line 13: @@
 ==PCB pictures==
 <gallery showthumbnails="1">
-File:Example pcb pictures.jpg|[[File:Steam Deck LCD ButtonBoard Rev. B right back side.jpg|thumb|175x175px|ButtonBoard Rev. B R back side]]
+File:Example pcb pictures.jpg|alt=
+</gallery><gallery caption="Controller Board pictures">
+File:R Board REV B back - R1 test point.jpg|ButtonBoard Rev. B - R back side
+File:REV B left back mux.jpg|ButtonBoard Rev. B - L back side
 </gallery>
 ==Reference measurements (also schematics if available)==
-<gallery caption="Schematics of the rev. B controller board (incomplete)">
+<gallery caption="Thermal Pad size<gallery&gt;
+File:Thermal pad size on Steam Deck LCD Motherboard.png|Thermal pad size on Steam Deck LCD Motherboard. left (blue): charging ic pad, 5.4mm x 5.4mm x 4.5-5mm (squishy)
+</gallery&gt;Schematics of the rev. B controller board (incomplete)">
 File:Power.jpg|Power delivery IC of the rev B controller board
 File:Right trigger.jpg|Right trigger circuit of the rev B controller board
@@ Line 23: / Line 28: @@
 File:Rumble.jpg|Rumble circuit of the rev B controller board
 File:Debug connector.jpg|Debug connector (TC-2050) of the rev B controller board
-File:Buttons.jpg|R4/R5/"..." Button circuit of the rev B controller board
+File:Buttons.jpg|R1(Shoulder)/R4/R5/"..." Button circuit of the rev B controller board
 File:FFC Connectors.jpg|FFC connectors (USB and connection to L board) of the rev B controller board
+File:MODE-switch.jpg|Schematic for the mode-switch circuit to switch the MCU to programming mode - rev B board (Renesas MCU)
 </gallery><gallery showthumbnails="1">
 File:Steam Deck LCD F7A Ram Power Supply Diode and Idle Voltage.png
@@ Line 62: / Line 68: @@
 ANX7580 Display IC: https://www.analogix.com/en/system/files/AA-004748-PB-1-ANX7580_0.pdf
+Headphone Jack: id: PJ-203B (brand: WNRE): https://www.ifixit.com/Answers/View/768877/When+will+a+replacement+audio+board+be+available