Hello,
I will have a fairphon4 next week.
I would like to find an easy installer to do it (since a laptop with debian 12).
Where can i find it please?
Where can i download /e/os for fairphone 4 please?
Thanks before.
Regain your privacy! Adopt /e/OS the deGoogled mobile OS and online services
Hi @florent.wehrli welcome to the /e/ forum.
You start your search Smartphone Selector and find the FP4 information page with further links here Info about Fairphone FP4 - FP4.
This is the link to /e/OS Installer, but it is not characterised as âEasyâ for new users. fp4 ( â the hashtag leads to discussions about the device).
Good luck
Thank you.
The website block me because i Use Firefox. 
There is âungloogled chromiumâ that can run the /e/ âweb installerâ,
But seriously, youâd better to prepare yourself to use the recommended âinstall-scriptâ method.
It will be successfull and time saverâŠ
Itâs not a block. You need a browser that supports WebUSB, and Firefox does not.
So you have to install a chromium based browser like ungoogled-chromium
Just as already said but it is html tool rather than standard website with no support page. There is a Help button leading to page not found and no known way to collect a log yourself, so hard to ask for help.
The Easy install method,
Install /e/OS on a Fairphone FP4 - âFP4â
may look intimidating at first but the work is all done for you by a script as already said by @piero
The installer can have issues and then youâll be pulling your hair over them. The command line instructions are more reliable. Really itâs not that complicated, the instructions are pretty straightforward.
Thanks.
I have installed Opera to access installer.
I have readen also the doc for the command line instructions.
Il have installed lineage on my Sony Xperia xa2 7 years ago.
Je ne sais pas si @jpan peut me faire part de son expérience.
I have a error when i Try to unzip IMG-e-2.9-a14-20250321478214-official-FP4.zip
I use Emmabuntus de5 (debian 12).
Is not necessary to download Twrp?
No the ROM comes with e-Recovery, a more simple custom recovery. This thread gives an idea what it looks like. [HOWTO] use e-Recovery to wipe & format data before sideloading/install eOS. The script install method puts the whole ROM on in one, without setting up the Recovery then using Recovery to install system.
Does your Ubuntu File manager have a GUI method to âExtract hereâ. That is a very convenient way using Thunar in Debian.
Or if a genuine error did you already check the sha256sum?
Also TWRP is build specific. For the phone I have running /e/os there is no TWRP build available. Itâs possible to build it yourself for a particular phone, but that requires some technical work Iâm not willing to get into myself.
You can use TWRP if you want since there is a build for the FP4. It has lots of useful features, but /e/os provides a recovery that gets the job done if you donât want to mess with it.
To install /e/os, can i use Community or official zip?
I donât understand the difference.
Thanks
The different build types are explained here Different Build Types. You can use either.
community is ahead in Android version at this time; official will receive Android version OTA Upgrade which some may feel a benefit, others are less happy with this as the Android version upgrade may seem slow to arrive as it involves much work by the devs.
Just or future reference, I run Firefox myself so I would have to run a Chromium based browser for applets that require WebUSB access such as the /e/os/ installer and Android Flash Tool. Ungoogled-chromium offers a portable version you can just unzip and run in place. Itâs pretty convenient.
I have unlocked my fairphone.
I have used this method: Install /e/OS on a Fairphone FP4 - âFP4â
But iâam blocked to the etap installing e/os
I have this message:
/IMG-e-2.9-a14-20250321478214-official-FP4$ sudo ./flash_FP4_factory.sh
[sudo] Mot de passe de wehrli :
Désolé, essayez de nouveau.
[sudo] Mot de passe de wehrli :
INFO: You are using a Linux distribution.
INFO: Looking for connected device(s)âŠ
factory.common: ligne 78: /media/wehrli/Mes fichiers/Documents/informatique/telephone/fairphone 4/IMG-e-2.9-a14-20250321478214-official-FP4/bin-linux-x86/fastboot: Permission non accordée
WARNING: No Fairphone 4 found in fastboot mode.
WARNING: Make sure that a Fairphone 4 is connected.
The fairphone is connected to my pc, degugage usb is ok.
I see that you separated the two halves of
chmod +x flash_FP4_factory.sh && ./flash_FP4_factory.sh
So you ran the first part as
sudo chmod +x flash_FP4_factory.sh
Did you get a positive response ? Can you see the file is marked executable ?
⊠Just to rule that out.
wehrli@wehrli-hpprobook455g4:/media/wehrli/Mes fichiers/Documents/informatique/telephone/fairphone 4/IMG-e-2.9-a14-20250321478214-official-FP4$ ls -l
total 716328
-rw-râr-- 1 wehrli wehrli 155648 21 mars 15:39 abl.img
-rw-râr-- 1 wehrli wehrli 178200 21 mars 15:39 aop.img
drwxr-xr-x 3 wehrli wehrli 4096 11 juin 14:28 bin-darwin
drwxr-xr-x 3 wehrli wehrli 4096 11 juin 14:28 bin-linux-x86
drwxr-xr-x 2 wehrli wehrli 4096 11 juin 14:28 bin-msys
-rw-râr-- 1 wehrli wehrli 962560 21 mars 15:39 bluetooth.img
-rw-râr-- 1 wehrli wehrli 100663296 21 mars 15:39 boot.img
-rw-râr-- 1 wehrli wehrli 114585600 21 mars 15:39 core_nhlos.img
-rw-râr-- 1 wehrli wehrli 43008 21 mars 15:39 devcfg.img
-rw-râr-- 1 wehrli wehrli 67108864 21 mars 15:39 dsp.img
-rw-râr-- 1 wehrli wehrli 25165824 21 mars 15:39 dtbo.img
-rwxr-xr-x 1 wehrli wehrli 8701 21 mars 15:39 factory.common
-rw-râr-- 1 wehrli wehrli 86305 21 mars 15:39 featenabler.img
-rwxr-xr-x 1 wehrli wehrli 497 21 mars 15:39 flash_FP4_factory.sh
-rw-râr-- 1 wehrli wehrli 409096 21 mars 15:39 hyp.img
-rw-râr-- 1 wehrli wehrli 536576 21 mars 15:39 imagefv.img
-rw-râr-- 1 wehrli wehrli 263284 21 mars 15:39 keymaster.img
-rw-râr-- 1 wehrli wehrli 153186333 21 mars 15:39 modem.img
-rw-râr-- 1 wehrli wehrli 13400 21 mars 15:39 multiimgoem.img
-rw-râr-- 1 wehrli wehrli 19125 22 mai 12:53 product_2025-05-22_125315.csv
-rw-râr-- 1 wehrli wehrli 54743 21 mars 15:39 qupfw.img
For me, its executable
Thanks. So, in addition, when you go into directory bin-linux-x86 you see fastboot marked as executable there ?
No, i do it
Other files must be executable?
i have the same message
/IMG-e-2.9-a14-20250321478214-official-FP4$ sudo ./flash_FP4_factory.sh
[sudo] Mot de passe de wehrli :
INFO: You are using a Linux distribution.
INFO: Looking for connected device(s)âŠ
WARNING: No Fairphone 4 found in fastboot mode.
WARNING: Make sure that a Fairphone 4 is connected.
Do you want to look for a Fairphone 4 again? [(Y)es/(n)o]: n