Installation on Samsung Galaxy S20 5G failed

[AnHw75]

Hi everyone

I’ve been using /e/os as my “daily driver” for about four years. For a long time, I used a Samsung Galaxy S9+. At the time of installation, the /e/os installer still supported Samsung models.
About three months ago, I installed /e/os on my old Samsung Galaxy S10 via the command line and it worked straight away.

I am currently trying to install /e/os on a Samsung Galaxy S20 5G and am failing when flashing the recovery image. The blue progress bar for the download status isn’t even displayed on the Galaxy S20.

The OEM unlock didn’t work via the Developer Options either. Although the OEM unlock was enabled in the Developer Options, it was still set to OFF in Fastboot mode

I was able to do the OEM unlock via the Fastboot menu, followed by unlocking the bootloader and a subsequent factory reset.
After that the OEM unlock was set to OFF

Und dann bleibe ich stecken. Und zwar beim flashen des Recovery images mit dem Befehl
”heimdall flash --RECOVERY recoveryfilename.img --no-reboot”.
Der Befehl heimdall print-pit funktioniert. Das Handy wird erkannt und der reboot wird durchgeführt.

Ich folge diesen Installationsanweisungen: Install /e/OS on a Samsung Galaxy S20 /S20 5G - “x1s”

My setup:

• Ubuntu 25.04
• adm and Heimdall in the current versions

Does anyone have any experience with the Samsung Galaxy S20 5G and can help me?

Thank you for your efforts, and I’m really looking forward to your reply

Regain your privacy! Adopt /e/OS the unGoogled mobile OS and online services

[piero]

there are multiple s20 5G variants…

what is your device model ?

[piero]

your first screenshot show an unlockable bootloader,
but the second one show an unlocked bootloader.

there is no bootloader/fastboot mode on Samsung devices but download/Odin mode.

[AnHw75]

what I ment is the mode you enter if you press volume up and volume down and connect the phone to the PC!

does that mean I can only work with windows-based odin?

[piero]

@AnHw75

does that mean I can only work with windows-based odin?

Windows users can use Odin3.x (or Heimdall but windows users are generally not used to use command line tools)

Linux users can use Odin4linux (usefull for full Samsung software, no possibility to disable auto-reboot) or Heimdall (usefull for only a few partitions)

MacOS users can use Heimdall

[HOWTO] an Unified Install Guide Project for /e/

. [e] About Unified Install Guide Project - Install /e/OS into the ROM of your compatible device - Preparation (1) install the appropriate Flashing Tools (2) allow “Non Vendor OS” to be installed on the device (3) Check the communication between the PC and your smartphone (4) Download a custom recovery manager (5) Download an /e/OS build Let’s roll ! (6) Unlock the Bootloader (7) Flash a custom recovery manager on your device Now the easiest part : install /e/ ! (8) install /e/ …

[AnHw75]

OK thanks. That’s what I also know.

[AnHw75]

It’s an SM-G981B/DS
I know, its not in the /e/os list of supported devices, but I allready installed /e/os on a Galaxy S10 dual sim which is also not in the list and the installation was no problem at all and everything works fine. Even dual sim ist working.

And its in the list of the “official” installing instruction of lineage os