How to Install Chrome OS Flex on a Chromebook 

I've done this on a Dell Chromebook 11 3120, and it works nicely!

A recap of the steps in the video as I understand them: - Remove write protect on your system (actual method depends on your system). - Press Esc + Refresh + Power button, to reboot. - Press Ctrl + D, to enter developer mode. - Press Enter to turn OS verification off. - Wait for 2 loud beeps. - Wait for system to reboot in to developer mode. - Wait for beeps again. - Wait for system to reboot itself in to developer mode. - Connect to Wi-Fi. - Log in as a guest. - Press Ctrl + Alt + T, to open a terminal. - Type in shell, press Enter. - Type in the long curl command, as seen at 5:23, and press Enter. - Press 2 to install the firmware. - To the questions, press 'y', 'y', an 'n'. - Wait for firmware to download and install. - Press Enter - you can now reboot into bios and install Chrome OS flex from a USB drive (don't plug in USB drive yet...) - Press Reboot and Power button, to reboot. - Keep pressing Esc repeatedly to enter bios. - Now plug in USB drive. - In the bios select 'boot menu' - Select your USB device - Wait to reboot - OS Flex installation will start. - Click next, then 'Install OS Flex'. - Follow OS Flex installation process from there. - After install, remove USB, enter bios, and deactivate and disable tpm. - Press Esc to exit bios, and reboot in to Chrome OS Flex.

Big thanks man, my Old Pixel Chromebook is alive again👏👍

Thank you bro! Now I have my old Toshiba Chromebook2 (2015) new and runing perfectly. Best tutorial. May God bless you...

You, my friend are a ducking lifesaver like one of the previous commenters I also have saved a very very very old chrome book from the scrap heap with your help thank you so much please keep up the excellent work

Amazing tutorial. I'm doing the unthinkable and recovering some old Dell Chromebooks 11 and installing Chrome OS Flex, just for fun. We'll see how it goes

Thanks, you've saved a Acer CB3-132 from the bin.

Thank you Bro! So helpful, obsolete chromebooks are now working perfectly .

This worked perfectly for me even on a really old Chromebook. Acer C720 ZHN. This thing only has 2GB of RAM and flex runs great so far.

thank you so much your the only video i found so i could do this with my old chromebook :) you have a sub

I had Gallium Linux installed on my Chromebook. I had to reset it to Chrome OS before I could install Flex. Once I had it reset back to Chrome this video was perfect! Thanks for taking the time to share!

Do you have a link to the video making the USB with chrome OS flex on it please?

You are the best!!! Thanks for sharing you helped bring back a dey Chromebook ❤

T H A N K YOU After my initial struggles to remove WP (not realising the screw I had looked at several times but ignored was in fact, the WP screw). Now my 2014 Toshiba CB30 Chromebook has been brought up to date and is no longer an awkward doorstop . Great instructions and it did exactly what it said on the tin 🤗

my chromebook are running on arm achitecture, so i can't install this mrchromebox firmware utility, any suggest for my problem?

Awesome video! Great instructions! Is there a way to put regular chrome back on the machine?

cap, Thanks you! I've watched the same video from 10 different people. your video was the absolute best and showed the most information by videoing your computer from a camera, but I'm starting to think that my Chromebook 11 C1B13C doesn't support chromeos flex. I get your system is repairing itself. please wait. then it reboots and it does this in a loop over and over. very depressing. I guess linux or windows is the only bet.

After it my sound speaker is not working

you can also install brunch chrome os if you still want google play apps and even support updates

I just got the Acer 314 spin 2 in 1 8gb ram 128gb storage 6000 intel processor and I'm enjoying it so far. Mine is supported until 2031. mine has touch screen and can turn into a tablet.

Thanks so much

I did this install on an HP chromebook 11 g5 and everything works fine, except I have no audio from my speakers or headphone jack. I can use bluetooth, but it's very janky and I would like to use the built in speakers. Anyone have any ideas on how to fix this?

I got an Acer C720, but when i attempt to reboot. It reponds, "repairing itself..."

your instructions were crystal clear. thank you so much. one last question. do i need to put the WP screw back on?

Where you get chrome os flex? on your usb flash/ Thank you for answer

The WP screw has come out but the system is still read only

we have the same model but i dont have the guts to do this

Very useful

Now I have no sound from my chrome book any fixes

Is there any benefit to reinstalling the security screw?

I followed your guide, i have the same Chromebook lenovo n42 but after chromeos flex being installed no sounds are coming either from speaker or headphones, any idea?

Any issues with sound after completing this. I have an Acer Chromebase and am afraid as i see others (not my model though) have sound issues with Flex.

For me it doesn't boot up into chrome it opens grub

Why do you want to do that? You'll lose your android system, just enable Lacros

does this work on 4g 16gb,

Technically you can do ctrl+d

I no longer have audio on my Acer CB3-111 after upgrading to ChromeOS Flex

there is no command

🤷 Promo sm

when i plugged in the usb device and went into the boot menu the USB was not showing.