Yesterday everything was fine until it wasn't. At one point I got in to leave and this is what my head unit started doing. It appears to be stuck on boot up and keeps trying like there is a corrupt file.

This is not the premium head unit with Entune suite and apps. It is the basic TRDOR unit without built in navigation.

I have tried the hold down power button to reset, disconnected battery for 15 minutes, pulled radio fuse for 8+ hours, etc. etc.

Everyone keeps saying it needs to be updated by myself or the dealer but you can't update a stereo that won't boot up. You can't get to the update screen and as far as I know this had the latest update already as it auto updates.

I know there is a TSB from Toyota but it appears to address random reboots of the Entune system, not a constant boot loop of the base system, and their fix is to update the software which can't be done.

If you have any ideas of something to try I'm all ears. Would love to just make this work without spending money on a new head unit if possible.