First of all, would like to thank Bogdacutu for all the research and work done.
Never rooted or flashed anything Android, the last experience I had with any type of root/jailbreak was with an Iphone 4 - redsn0w (no longer an Apple user). Anyway, I have 2 Shield Tablets, so did the whole recall process, got my replacements in the mail and left them untouched. I'm not anywhere near developer or programmer level, but I can work my way around PC's (built 5 desktops), but figured someone would figure out how to bypass this killswitch. Honestly I've had my original tablets since last November, and never really had a problem of them getting super hot, so definitely did not want to send these back. Followed Bogdacutu's instructions and with some simple research (Not asking on this thread) I first had to root, flash TWRP, flash 3.1 OTA, then flash nomoreota.zip to remove the TegraOTA folder and TegraOTA.apk, and today, via Bogdacutu's link, noticed one of them is pending the "Urgent update of Death!" So. out of curiosity..just restarted the tablet with the killswitch and booted up fine.
. Been reading this thread since it was only 1 page and haven't really found stating if this actually worked after following Bogdacutu's instructions and then activating the new tablet. Well, so far my tablet restarted and all is well, i'll try again and restart tomorrow to see what happens. And guys, stop asking Bogdacutu how to root, flash, etc. Youtube is an amazing thing nowadays. Follow these links for those instructions and lets keep focused on results! Again, thank you Bogdacutu. Here's youtube links to root, flash, etc. and of course DON'T forget to flash nomoreota.zip (download link via OP) , literally this is all you need.
3.1 OTA, click on Download>OTA>Full, pick your model ...