This is how I’ve managed to install the great ungoogled /e/OS ROM on my Fairphone 5
This guide works with Linux computers.
Unlocking the bootloader
Enable dev options (settings, about, build number : 8 taps, system)
Connect to Wi-Fi, then Settings > System > Dev options > OEM unlocking, Input verify code, get it here
Restart the phone
Power off the phone
Go to the bootloader screen with Volume Down + Power
Using a computer running recent fastboot do a fastboot flashing unlock
Phone : select “Unlock the bootloader”
Phone is restarting
Power off the phone
Go again to the bootloader screen
Computer, do a fastboot flashing unlock_critical
Again, on the phone : select “Unlock the bootloader”
Phone is restarting
Power off the phone
Unplug the cable
Flashing /e/OS
Download the latest /e/OS stable version
Triple check that your Android security patch is under the download /e/OS build date
Triple check that your Android security patch is under the download /e/OS build date
Triple check that your Android security patch is under the download /e/OS build date
Unzip the /e/OS archive
Phone : Go to the recovery screen with Volume Up + Power (yup, this is volume down)
Select “Enter fastboot”
The phone is now showing a new “fastbootd” screen
Plug the cable
Computer : launch the flash_FP5_factory.sh file
Let the script do the job…
WARNING - When writing this tuto (/e/OS 2.0), after 2 minutes, the script is crashing and printing this :
Erasing 'metadata' OKAY [ 0.004s]
Finished. Total time: 0.006s
Setting current slot to 'a' FAILED (remote: 'Unable to set slot')
fastboot: error: Command failed
And here is the fix :
Phone : on “fastbootd” screen, choose “Enter recovery”
Phone : yeah, the recovery screen has changed
Choose “Advanced”
Choose Enter fastboot
Computer : launch again the flash_FP5_factory.sh file
At the end, phone will automatically restart
Job’s done !
Now let’s finish the stuff, and properly relock the bootloader
Locking the bootloader
Power off the phone
Fastboot mode with Volume Down + Power
Computer, do a fastboot flashing lock_critical
Phone, select “Lock the bootloader”, phone will restart
Switch off the phone
Fastboot mode
Computer, do a fastboot flashing lock
Phone, select “Lock the bootloader”, phone will restart
But i do not understant what you mean with do a fastboot flashing lock-critical.
I installed adb devices and fastboot devices, but when i enter adb devices is see nothing under: list of attached devices. Maybe i need another cable but i still dont know what you mean.
your device, connected to the computer via a “data USB cable”, must be in normal mode with “USB debugging” enable to react about adb command
or in recovery mode
the phone must be in fastboot mode, connected to the computer via a “data USB cable”
Thank you for helping, because i get stuck on this.
Im working with e/os about 5 years now and the first time i bought the Gigaset GS290 and install e/os with the easy installer. After testing the os, ive bought the Asus Zenfone wat cost me 3 months and a lot of patience to get my phone back from Paris with the protests on that moment.
now i have bought a Fairphone 5 and i get stuck again on this.
So, for me and a lot of other people would trying to test e/os without directly buying a Murena Phone from the website, this is a big issue to not choose e/os.
It was v2.1
Before locking the bootloader, everything was fine, I was able to see the /e/OS loading page.
After locking, the device was bricked.
I believe one needs to starts the device completely, activate USB debogging and THEN lock the bootloader
Nope I cautiously checked that one, reinitialized the phone to its stock ROM (Security patch = april 24) and installed /e/OS/ with security patch May 24
WARNING - When writing this tuto (/e/OS 2.0), after 2 minutes, the script is crashing and printing this :
