Installing Ubuntu linux Asus C302C or Acer spin 713 Chromebooks
Check here how to flash the rom
Check here to see if you should use Legacy or UEFI ROM
Asus C320C write protection removal
Removed screw and close your laptop to enable the bios be overwritten
https://www.asty.org/location-of-asus-c302c-write-protect-screw/
Acer spin 713 (cp713-3W) write protection removal
Disconnect the battery cable, be care full since the battery is lose, when you remove the screws and remove the cover. I use one of those plastic phone openers to go around the edge, if you open the screen a little bit, is easy to insert the plastic or your nails to start poping the metal bottom. since the battery is lose, put the laptop horizontal before finishing removing the bottom cover.
after that
Used mrchromebox to install a new bios on the asus chromebook
I installed Ubuntu 25.04 with a 8Gb usb drive.
Enabled Secure Boot on the Bios after installing Ubuntu 25.04
Sound
sudo cp -r ucm2/codecs/hda/* /usr/share/alsa/ucm2/codecs/hda/
sudo cp -r ucm2/codecs/max98373 /usr/share/alsa/ucm2/codecs/
sudo cp -r ucm2/conf.d/sof-rt5682 /usr/share/alsa/ucm2/conf.d/
You can use the cmd below to restart the sounds service, in case it stops working.
systemctl --user restart pipewire.service
Trackpad
To enabled right click on the trackpad with 2 fingers goto settings.
Gnome, Firefox and chromium touch support
Works out of the boxStatus
Status
Laptop is fully functional, besides the problems listed below. Battery life time is awesome. trackpad, wifi, bluetooth, physical power volume buttons, sleep, hibernate, power modes, usbc hdmi video/sound work as designed.
Video Meetings work fine on chromium browser on Firefox video and sound is using a lot of CPU and freezes the browser.
Bios Update
Use https://mrchromebox.tech/ instructions
cd; curl -LO mrchromebox.tech/firmware-util.sh && sudo bash firmware-util.sh
Make
sure secure boot is disable on the bios otherwise the script won't be
able to update the bios, you can re-enable after the update.
Problems I still have
For the Acer spin 713
Keyboard lights
USB3 ports
- For charging they work fine
- I noticed that the usbc ports on the laptop, only work for data as regular usb ports if you plug a usb device when you power on the device, if there are no device plug to the device during power on the ports won't work for data on ubuntu
Other
2 - USB C external monitor is not working, not idea why.
For the Asus C302C
Fix keyboard special keys
cd ~/Downloads; sudo apt-get -y install curl; curl -LOk https://github.com/fascinatingcaptain/CBFixesAndTweaks/archive/master.tar.gz; tar -zxvf master.tar.gz; cd CBFixesAndTweaks-master
# make backup of original pc config filesudo
cp -n /usr/share/X11/xkb/symbols/pc /usr/share/X11/xkb/symbols/pc.bck
# copy new pc config file
sudo cp pc /usr/share/X11/xkb/symbols/
reboot
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