[Switch OLED Picofly] Power issues [D0, flickering video files]

[numba2dad]

Hi, so my installer for Picofly is not able to fix this issue and keeps saying that the following issues are an APU/GPU issue. But I think that this is probably a power draw issue.

1) In handheld mode, whenever the Switch is playing a video file or a game is playing video content, the switch flickers and produces a colored screen. However, when I dock the Switch, and undock, this issue disappears and I can play normally. When I put into sleep mode the issue then returns. This flicker issue does not appear in docked mode.

2) The Picofly stops randomly working not sure why. But the error I always get is a D0 error. I need to reboot sometimes for the error to go away, but then the D0 stays there until the installer resolders. I sent it back to the installer 3 times for him to fix but I end up having the same issues. He thought it was an issue where the wires are picking up noise, so he switched the a higher AWG wire.

Attached to this thread are the images my installer sent from install. Has anyone had this issue and how did you fix?

 

[thesjaakspoiler]

The video signal to the dock and the display have a different physical path.
So that is why probably your Switch is working in docked mode.

My guess for issue #1 would be some issue with the ribbon cable or connector of the display.
If some contact has been bend a little, it might give those partial screen issues.
In the worst case it is a crack in the display ribbon cable itself.
The ribbon cable can sometimes crack due time.
The connector can fail when too much force was applied to it.
You need a good smartphone or microscope to inspect it.

If you are using a DAT0 adapter, it might be a bad adapter.
There are good and bad adapters and sometimes they do fail anyway.
A kamikaze mod is more permanent but not every modder does that.

Maybe see if any of the tech guys at GBATemp is in your country and have them take a look.

 

[numba2dad]

The video signal to the dock and the display have a different physical path.
So that is why probably your Switch is working in docked mode.

My guess for issue #1 would be some issue with the ribbon cable or connector of the display.
If some contact has been bend a little, it might give those partial screen issues.
In the worst case it is a crack in the display ribbon cable itself.
The ribbon cable can sometimes crack due time.
The connector can fail when too much force was applied to it.
You need a good smartphone or microscope to inspect it.

If you are using a DAT0 adapter, it might be a bad adapter.
There are good and bad adapters and sometimes they do fail anyway.
A kamikaze mod is more permanent but not every modder does that.

Maybe see if any of the tech guys at GBATemp is in your country and have them take a look.

I was thinking that too, but the issue goes away once I put it in the dock. Once I take it off the dock, no screen flickering on the handheld itself until I put it into sleep mode.

I will take a look at the DAT0 and ribbon cable for screen.

 

[Gbasam64]

it's definately not the dat0, either it works during boot or not, once CFW is loaded, the chip does nothing.

 

[numba2dad]

I just tried switching out the picofly chip itself and that didn’t do anything. Same exact D0 error I do think it’s the DAT0 adapter so I may attempt to swap it out. Here's video of the job. IDK if this will help. Bro did not clean the dissolver at all!

Post automatically merged: Jul 23, 2025

Swapped out the DAT0 adapter and the OLED ribbon looks good.

No changes.

 

[Jonhgopogi]

I got 5 modchips from aliexpess I installed all of them fine and used 3 of them to try installing some things and all 3 of them failed progressively with a blue screen and when i removed only the chip not the flex sometimes black sometimes it booted to ofw but with issues.

Could this be a bad batch? I've done 2 other installs in the past with no issues... I'm afraid to power on the other 2 now.