Casio W800 module has a countdown timer (CDT) function that is locked or not active. In this video, we did Casio W800 Timer Modification and make the timer f...
https://www.watchuseek.com/threads/hidden-function-in-my-casio-w800h-module-what-the-heck-can-i-turn-it-on.650650/
MrChromebox.tech : Custom coreboot firmware and firmware utilities for your Chromebook/Chromebox
To install full EFI on a Toshiba, a "jumper" screw has to be removed to disable write-protect.
https://www.reddit.com/r/chromeos/comments/2ljid3/how_to_disable_writeprotect_on_toshiba_chromebook/
https://www.youtube.com/watch?v=JcZ711cxKdA
$1.79
Actual data to use: 8703E80400000200
Replaced: 8703E80400000200 ...it was already set?
seems like these require a writeable NFC tag
Not sure if this works with Android >4.0.