Recently I tried to use my Wii U after a couple years and it booted fine, tried to do a system update and it got to about 98% and froze. Since then when I try to switch it on the light goes solid blue, disk drive makes the two noises but the gamepad won't connect and I don't get any video output. I have tried booting to udpih with a Pi Pico but I can't get it to load. I'm not sure if I'm timing it wrong since I have no video output I can't time it with the Wii U logo screen but I have tried at least 50 times with different timing and can't seem to get it to work. It could also be that it is loading but I have no way of knowing since there's no video output and the gamepad won't connect however I don't think that is the case since pressing the eject button makes the disk drive make a noise which I don't think it would do if it was in the udpih menu. I have tried both the recovery_menu and recovery_menu_dc_init (renamed to recovery_menu) and neither seem to work. I am using a 64GB Samsung Extreme SD Card if that helps. Also the console has never been modded or hacked so is (or was if its bricked) still running stock firmware. I don't have any NAND backups since I haven't ever done anything "not approved" with it. How can I fix it short of buying a new mainboard?