chromebook how to backup firmware || restore
1、https://johnlewis.ie/Chromebook-ROMs/utils/flashrom
sudo flashrom –r
2、https://johnlewis.ie/flash_chromebook_rom.sh
option 4
3、
https://raw.githubusercontent.com/MattDevo/scripts/master/firmware.sh
This shell have backup option.
Then
http://mrchromebox.tech/firmware-util.sh call firemware.sh
So try fireware.sh
===== flashrom =====
https://johnlewis.ie/Chromebook-ROMs/utils/flashrom
chmod +x flashrom
sudo ./flashrom -w xxxxxbios.bin
==== restore =====
https://docs.google.com/document/d/1Q_5_rTv2CEMgXiAm86IXGOVGBtb8JWXj-zcCPzAEEkQ/edit