Vizio V555-G1 stuck on wallpaper; now stuck on V logo

[nomoresonys]

I see, it may have been an update gone wrong, I always turn off auto updates, I assume you have all external devices unhooked while trying.

[x_orange90_x]

Something to try: Unplug tv, press and hold power button on tv not remote for 30 seconds, leave tv unplugged for 15 minutes, plug it in, press and hold power til it comes on.

I did try this to no avail.. Plus, plugging it in instantly powers it on regardless of pressing or holding the power button. Before it would remain off when plugged in, so in that sense it was more "usable" I guess. Also, while stuck on the logo, holding Input and Volume Down does nothing. I'm wondering if trying to update the firmware caused this, or if it just naturally crashed and rebooted to this state because I left it on so long. Likewise I'm wondering if I was better off with it frozen on the wallpaper 🙁

I do think it's a NAND issue. I don't think this set has EEPROM because it's a smart tv. I'm going to try resetting a few more times later. If that don't work in gonna pull the board and heat up the BGA and NAND and see if that changes anything. A replacement isn't super expensive, but still not really cost effective.

[nomoresonys]

Something to try: Unplug tv, press and hold power button on tv not remote for 30 seconds, leave tv unplugged for 15 minutes, plug it in, press and hold power til it comes on.

[diif]

Perhaps the NAND or Flash is worn out.

[x_orange90_x]

I just got this tv today and it's getting stuck on the wallpaper. When I first power it on it goes to the V logo, then a black screen for about 15 seconds, then a Chromecast error for just a few seconds, and then finally to a wallpaper. It stays frozen on this wallpaper and does not respond to anything on the remote besides power on/off. Likewise the buttons on the tv do nothing either (besides power). I did the "reset" by holding the volume down and input buttons together for 10 seconds. It showed a message at the top of the screen saying it was Wiping Data and would restart soon. After it restarted it went right back to the same error and then frozen wallpaper.
Attached are photos of the error and the wallpaper. I tried the reset several times and tried two different remotes. It doesn't respond to anything.

Edit:
I plugged in a thumb drive with the latest update and nothing showed up on screen, so I left it alone for a couple hours. When I returned the tv was sick on the V logo and I could not power it off via button press. I unplugged it, held the power button, plugged it back in but it instantly powers itself on and gets stuck on the logo forever. I found a procedure to force a hard reset via pressing button combinations on the remote, but you have to start with the power off and NOW I can't this stupid thing to turn off without being unplugged! Looks to me like crippled firmware. It boggles my mind that they can push out updates that literally brick people's TVs and it's just okay. There has to be some way to force a reinstall of the firmware or downgrade it to something that works.