Steam deck black screen of dead?

[xiran64]

Hi to all!

I´ve an steam deck lcd, model F7A, without image, it´s an black screen of dead, it charge its battery, haptic present, but no video, even not hdmi output.

Things tried:
Hold power button for 30 segs
Hold + Volume button + power
Hold - Volume button + "..." + power (low sound power on)
From crisis mode, usb c memory unit with bios file (uSD file also)
With a programmer, re write bios physically, rebuild with critical data

Some body have an idea?

I´ve read tha anx7580 ic is responsible for generating image, but i´ve don´t know, if usb hdmi too

Thx in advice!

 

[Magsor]

Sorry but I dont understand this part:
From crisis mode, usb c memory unit with bios file (uSD file also)
With a programmer, re write bios physically, rebuild with critical data
Do you have display or not?
Have you tried while holding - volume press power twice but not too fast just normal that get you in boot manager.

 

[tech3475]

I would have tried contacting Valve before disassembling the unit and rewriting the BIOS.

I've had some janky times trying to boot mine which took multiple attempts, did you try hooking up a keyboard to enter UEFI that way?

 

[xiran64]

Sorry but I dont understand this part:
From crisis mode, usb c memory unit with bios file (uSD file also)
With a programmer, re write bios physically, rebuild with critical data
Do you have display or not?
Have you tried while holding - volume press power twice but not too fast just normal that get you in boot manager.

Oh, sorry if i´ve didn´t express correctly:

From crisis mode (don´t have image, in the internal screen, nor external)
There are a tutorial, on how to fix black screen of dead, reprogramming the bios with a programmer, still, no video recovered.

In no case have video, internal, or external.

If i´ve try crisis mode, in the initial, have chime sound

This is my first time, interacting with a damaged steam deck, and i understand (Or maybe I misunderstood) black screen of dead, that give some synthoms of live (initial chime sound, haptic response, good charging), but no image, internal, or external

Post automatically merged: Nov 9, 2025

I would have tried contacting Valve before disassembling the unit and rewriting the BIOS.

I've had some janky times trying to boot mine which took multiple attempts, did you try hooking up a keyboard to enter UEFI that way?

How can i enter UEFI? to check if in thatway, have video (internal, or external)