MrChromebox wrote: “An x86_86 (Intel/AMD) architecture device – ARM-based devices are not supported” - but this Chromebook above has allready installed CoreBoot by default/Google, and it is a chromebook with an ARM Qualcom Snapdragon Prozessor! So, why can´t i overwrite it with an “custom” coreboot?
There is a Linux Image available especially for this model (Trogdor):
[GitHub - hexdump0815/linux-mainline-on-arm-chromebooks: running linux mainline on arm chromebooks - for example: samsung xe303c12 and xe503c12 (snow and peach), acer c100, c101 and c201 (veyron speedy, minnie etc. and gru bob and kevin), medion s2013 and s2015 (veyron jaq, mighty etc.), acer cb5 311 (nyan big), lenovo n23, acer r13 (oak elm and hana), lenovo duet (kukui krane) and most probably many many more over time ...]