If the Switch OLED dock sends no picture, or a scrambled, discolored or blurry one, Nintendo's steps begin with the console, not the dock: undock and see whether the console screen itself is fine, install the latest system update, restart, reset the HAC-002 adapter for 30 seconds, and unplug and inspect the HDMI cable and adapter for kinks, cuts or fraying. Then connect the adapter to the dock and a wall outlet and the HDMI cable directly from the dock to the TV, with a sound bar, home theatre or DVI adapter removed. The dock's TV output LED shows what it thinks is happening.
Differential
Likely causes of “Nintendo Switch OLED dock turns on but has no picture”, and how to tell them apart
- 1
A loose or damaged HDMI cable
What separates it The picture is scrambled or missing and moves when you touch the cable
How to confirm Unplug the HDMI cable from the dock and TV, inspect it for kinks or fraying and plug it in firmly, or replace it
- 2
A device between the dock and the TV
What separates it The picture is blurry or lost when a sound bar, home theatre or DVI adapter is connected
How to confirm Plug the dock's HDMI cable directly into a TV HDMI port and take other devices out of the chain
- 3
A non-original adapter or power source
What separates it The picture problems began with a different adapter because of a non original adapter or power source
How to confirm Use the original Switch AC adapter (HAC-002); a different power source can cause this problem
- 4
A dock LED that keeps flashing
What separates it The TV output LED flashes instead of staying solid green
How to confirm Undock, update the console, restart it and update the dock firmware under System Settings, System, Update Dock
- 5
Outdated system software
What separates it The picture problem started after a change because of outdated system software
How to confirm Install the latest system update and restart with POWER held three seconds, Power Options, Restart
Before you touch a setting
Record this first — changing settings destroys the evidence
- The TV output LED pattern on the dock
- Whether the console's own screen looks fine undocked
- The HDMI cable, adapter and any device between the dock and the TV
- The TV model and the HDMI input
Try in this order
0 of 9 completedUndock and check the console screen
ReversibleTake the console out. If its own screen looks scrambled or distorted undocked, the problem is the console.
Install the latest system update
ReversibleOpen System Settings, scroll to System, System Update. The console checks whether an update is available.
Restart the console
ReversibleHold POWER for at least three seconds, choose Power Options, then Restart. If it does not respond, hold POWER for twelve seconds to force a shutdown.
Reset the AC adapter
ReversibleUnplug it from both ends for 30 seconds and confirm it is the original HAC-002.
Inspect the cables
ReversibleUnplug the HDMI cable from the dock and the TV and look for kinks, cuts or fraying in the HDMI cable and the adapter cord.
Reconnect directly
ReversiblePlug the adapter into the dock and a wall outlet and the HDMI cable straight into the dock and the TV, with any sound bar, home theatre or DVI adapter removed.
Update the dock firmware
ReversibleWith the latest system update installed, open System Settings, System, Update Dock, Begin Update. If it stops, try again.
Read the LED and re-dock
ReversibleThe LED should flash once at plug-in and stay solid green while a game shows. Re-seat the console so its screen faces the same way as the dock's front panel.
Try a second HDMI input and TV
ReversibleMove the HDMI cable to another input on the TV, and if you have one, test the dock on a second TV. A working picture on the second TV points at the first TV's port or settings.
Model-specific
What is true of this model and not of its siblings
- OLED dock
- Ships with the OLED Model, has a wired LAN port and two USB 2.0 ports on the side, and outputs up to 1080p.
- Connection order
- AC adapter into the top terminal, HDMI cable into the bottom terminal labeled HDMI OUT, then close the back cover.
- Tools and supplies
- A spare HDMI cable, the TV remote and a soft cloth.
- What to tell Nintendo
- The dock model HEG-007, the LED pattern and the cables used; not a part number.
- Repair cost
- Nintendo's out-of-warranty estimate, quoted by iFixit and Engadget, is $139 for a Switch OLED console and $30 for an original-style dock.
Stop boundary
When this stops being a self-service repair
- !If the console screen is fine undocked but the TV picture is bad with a new cable and the original adapter, the dock may need service
- !If the LED keeps flashing after the dock firmware update and a full unplug, request service
- !If the picture is bad on the console screen too, follow Nintendo's console screen article
Evidence ledger
Sources behind this answer
Where the manufacturer's article stops. Nintendo writes them for the Switch and the OLED Model.
Undock, update, restart, adapter and HDMI checks.
The LED pattern and firmware update.
Dock connection order for the OLED and standard docks.
Exact questions
Common questions
Why is the OLED dock picture scrambled?+
Check whether the console's own screen is fine, update, restart, reset the HAC-002 adapter and reseat the HDMI cable directly with nothing in between.
Does the OLED dock output 4K?+
No. Nintendo's specification lists up to 1080p via HDMI in TV mode for the OLED dock, the same as the original dock.
What should the LED do?+
Flash once when the adapter is first plugged in, then stay solid green while a game is displayed on the TV.
Can I use a DVI adapter?+
Nintendo says to remove a DVI adapter, a sound bar or a home theatre system while troubleshooting the picture.
How do I update the dock firmware?+
System Settings, System, Update Dock, then Begin Update, after installing the latest system update.
Does the picture problem mean the dock is broken?+
Not usually. Nintendo's order rules out the console, adapter, cable and chain before service.
Can a bad HDMI port on the TV cause this?+
Yes. Try another HDMI input on the TV and, if you can, another TV; Nintendo lists reconnecting directly to the TV as part of the steps.
Why does the picture look soft on the TV?+
The dock outputs up to 1080p, so a 4K TV upscales it. That is the hardware tier, not a fault.
Should I leave the console in the dock?+
You can. While docked the console screen turns off and the game shows on the TV, and the dock charges the console.
Is a third-party dock safe to test with?+
Nintendo says a different accessory may cause problems and recommends the licensed dock and adapter when a console misbehaves in TV mode.