I recently bought a "non-working" Wii U and have been going through the process of repairing. Initially, it did not power on at all. After tearing it down, I found that one of the ferrite beads after the power fuse was completely blown up. I replaced that and now it turns on.
However, the new issue is I have no video output, whether on HDMI or analog. I was able to boot with UDPIH (again, no video) and get the logs dump. No mentions anywhere in the most recent (or any other logs) of Media Error that I could find, so it doesn't appear to line up with the typical MMC/NAND needing a NAND-AID at least from what I can tell. So I blind installed isfshax and now when I turn the console on, it goes straight to the purple light. However, I still have no video output (plugged in HDMI now, confirmed we're on a display that supports 1080p).
Not really sure how to proceed at this point. From what I can tell, things seem to be semi functional but with no display at all, I don't want to blind fire some power/eject combinations without knowing what I'm doing. Looking for any suggestions you or others may have.
Can you zip the logs up and upload them? They can be used to see if some other issues exist with the console.
Do you remember what the LED on the console was doing before you installed ISFSHax?
QuoteStaying red
Try turning on using the eject button and remote
Still red -> SLC Failure / boot1 corruption / SEEPROM corruption
Red blinking after some time -> Overheating / VRMs failing
Red Blinking on cold boot -> Short on one of the Power Rails
Blue blinking -> SLC Corruption (system.xml / fw.img) or bad RAM
Orange blinking -> ISFShax SD card missing
static blue
Wait 1m, try turning off by shortly (less than 1s) pressing power
Still on -> OS crash
Turns off -> Display Problem
Since we do not know the state of the OS on the console, we don't know if its working enough to display anything at all. Keep in mind that an eMMC can be working but if the OS is badly corrupt the console may not display anything at all. I have had a few consoles that did just this. The likely reason for this is probably either someone interrupt an OS update or they tried homebrew and they deleted something they shouldn't.
You can use UDPIH to sync a game-pad to the console and see if that displays so you can further diagnose the console. If you want to use UDPIH I am attaching the recovery menu that will automatically dump the PIN when loaded. Then you can extract the pin from the SD Card on a computer, power off the Wii U, Power it back up, wait a few seconds and press the sync button twice and then enter it on the gamepad to get it connected.
Perfect, I will give the gamepad sync up a try as well (once I get my gamepad in finally). Before installing ISFShax I had a static blue status LED when powering on the console, just no display at all. I've attached the zip of the log files. Appreciate the help! I've been fixing up old consoles for a while now but this is my first dip into the Wii U world, so learning as I go.
Quote from: kromaey on Jul 25, 2026, 08:58 PMPerfect, I will give the gamepad sync up a try as well (once I get my gamepad in finally). Before installing ISFShax I had a static blue status LED when powering on the console, just no display at all. I've attached the zip of the log files. Appreciate the help! I've been fixing up old consoles for a while now but this is my first dip into the Wii U world, so learning as I go.
So a static blue like either the OS crashed or there is a display problem. Since you are past the point of testing that, without removing ISFShax and going back lets just keep that information in the back of our minds.
I took a look at the log files. No eMMC errors are found, so you are correct the eMMC appears to be just fine. The console was originally setup to display over Composite at 480I. If you are trying to use this console on a TV that doesn't support this format than the screen will remain black and appear to display nothing at all. I would recommend syncing a game-pad with the console. If it loads the OS you can go into the settings and adjust the TV settings to match your display. In most cases this means HDMI 1080P.
That being said based on the log files, it appears the OS isn't functioning. So the problem might just be an OS Crash and the MLC needs to be rebuilt.
Just to be sure, Minute menu will only display over HDMI 1080P. Have you tried that?