Trouble installing e/os on FP6 using the web installer on Linux

I’ve tried installing e/os using the web installer in Windows 11, but it always got stuck at the “Device Detection” step, where even though the phone was visible, it couldn’t connect (no pop up on phone), even though I followed all the previous steps correctly.

I heard it might work on Linux, so I installed Zorin (was thinking of doing that anyway), and tried the web installer again. This time i did get the popup on the phone, and after downloading the files it booted into the bootloader, but it there I got stuck again. I forgot the message it gave me but it was something to do with the bootloader (in the bootloader menu it says the bootloader is still locked btw). I can’t check again because now, for some reason, when trying, it won’t go past the “Device Detection“ step.

When running “adb devices“, it shows up. When running “fastboot devices“ it wont. I have tried multiple different cables and multiple different ports.

For the record, I’ve never used Linux before, so I’m a total newbie when it comes to that. And I have no experience with running commands or whatever.

Is anybody able to help or direct me to somewhere else for help? Thanks in advance!

And when running “adb devices” your phone in “recovery mode” and when running “fasttboot devices” your phone is in “fastboot/bootloader mode”?

Hi RensS,

I had the same result a month ago with my fairphone. I tried to install via the web installer via windows and linux but neither worked. I think The FP6 simply isn’t supported yet on the web installer. In the end I did install murena using the other method and it was surprisingly easy.

Which brwoser are you using? According to the manual you need to use a chrome based browser.
https://doc.e.foundation/de/eos-installer#are-there-any-specific-browsers-that-i-need-to-use

Their device list says the FP6 is supported by the installer.

Edit: not sure if you checked, but there are several topics in the /e/ forum about installing on the FP6, maybe one of those has useful information. Not sure what search terms to use best, but the list of topics with the “eosinstaller” tag has a couple of FP6 entries:

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Sorry, I haven’t seen this point.
Maybe first check if your FP6 is recognized correctly by the computer when in fastboot-mode. Just to check if the connection between phone and computer is OK.

My PC recognises the phone when running adb devices just as is, no mode, have not tried recovery mode yet. When running fastboot devices the same way it doesn’t see it. When my phone is in the bootloader menu I think, if I remember correctly, my PC doesn’t seem the phone at all.

Probably gonna have to try that, I did buy a new cable, hope that helps.

Yeah I saw that requirement, I tried both chrome and brave

Yeah if the web installer doesn’t work with my new cable, I’m gonna try to do it manually. Thanks for the info

Just to check, when you say “in fastboot mode”, what do you mean exactly? Is that the bootloader menu you get after OEM unlocking? The menu with the plain text where it shows phone stats?

This is fastboot mode

When the FP6 is in fastboot mode, fastboot commands should work. adb commands don’t work in this mode (by design).

Similar to the above: when the normal system is running (and USB debugging is allowed of course) adb commands should work. fastboot commands don’t (again, by design).

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Ok yeah that the screen I was thinking of. I don’t remember if I tried running the fastboot command while the phone is in fastboot mode, I’ll try that soon.

Ok yeah then it makes sense.

Thanks for the info. I’ve no experience with any of this, so it’s a bit overwhelming knowing what all the terms mean and what people are referring to

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As @Ingo already mentioned, this is the way to go. Get into fastboot mode (adb reboot fastboot in terminal) and check if the phone gets recognized correctly by your computer (fastboot devices in terminal).

If this is OK, there should be no longer trouble with the web installer.

Hi!

I purchased a Fairphone 6 with a preinstalled Android 15. I want to switch to /e/OS. I updated Android, I unlocked the bootloader, I activated USB debugging, following the instructions on the support site. The web based installer ( /e/OS Installer ) didn’t work (“Cannot connect ADB No device connected”), so I downloaded the installer to my Ubuntu laptop and tried from the command line. It copied and apparently installed many images, but failed eventually. I got the message:

Error: Critical partitions are still locked.
Did you execute ‘fastboot flashing unlock_critical’?

Unfortunately, unlocking the critical partitions doesn’t work either:

$ fastboot flashing unlock_critical
FAILED (remote: 'Flashing Unlock is not allowed
')
fastboot: error: Command failed

A factory reset in Recovery Mode also fails with a permission error. The phone is presently stuck in a boot loop. I cannot even reinstall Android. How do I get out of this?

Any help is welcome!

May I assume you mean you enabled OEM unlocking? Because thats not unlocking the bootloader, that only gives the permission to do so.

Did you check the e/OS forum?

Moved you post here, so also above

Yes, of course, I mean OEM unlocking. Sorry for being unprecise!

At present, I have no OS at all. I am stuck in a boot loop, I have no way to unlock the critical partitions.

$ fastboot oem device-info
(bootloader) Verity mode: true
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: false
(bootloader) Charger screen enabled: true
OKAY [ 0.001s]
Finished. Total time: 0.002s

I tried it with the official FP USB cable, and it seemed to go as intended, but now it gets stuck in the webinstaller with this message:

Error on step: connect-bootloader

Cannot execute command flashing unlock
Cannot execute command flash devcfg_a devcfg.img
error flashing file devcfg.img Bootloader error: Bootloader replied with FAIL: Flashing is not allowed for Critical Partitions

The phone still boots thankfully, so not in a bootloop. But I’m not sure what the issue now.

The bootloader is definitely unlocked, it says so in the fastboot menu, and like I mentioned it definitely got further than before (I guess a good cable really does make a difference)…but yeah, no idea what this issue is about…

your device is still indeed unlocked according to the above. Can you boot into the bootloader and does it also show bootloader unlocked?

Is critical unlocked as well?

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with this command?:

fastboot flashing unlock_critical

I did do that yes. It resets the phone again, so I have to reenable USB debugging etc. But I have run that command

The thing is really finicky though. Now suddenly it gets stuck again at Device Detection. I dont get a popup on my phone anymore.

*edit: ok so for some reason the web installer worked suddenly. But now I’m stuck in a bootloop.

Now some time later, I got it out of the bootloop, but it only boots into the fastboot menu now, whatever option I choose. DEVICE STATE - unlocked

*edit 2: I installed e/os again manually and now it seems to be working.

One question I got left is, I’m reading a lot about relocking the bootloader, what exactly is the issue there? When should or shouldn’t I do it?