[UNOFFICAL BUILDS] Gigaset GX4 (GX4) / Volla Phone X23 (vidofnir) for eOS-a14 3.1.x

[ronnz98]

Gigaset GX4 (GX4) / Volla Phone X23 (vidofnir) for eOS-a14 3.1.4

e-3.1.4-a14-20250920-UNOFFICIAL-GX4.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/Gigaset/GX4%20GS5/e-3.1.4-a14-20250920-UNOFFICIAL-GX4.zip/download

e-3.1.4-a14-20250920-UNOFFICIAL-vidofnir.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/Gigaset/GX4%20GS5/e-3.1.4-a14-20250920-UNOFFICIAL-vidofnir.zip/download

Please see sources and install instructions including recovery here:

LMODroid-Devices · GitLab

https://get.libremobileos.com/devices/GX4/builds
https://get.libremobileos.com/devices/vidofnir/builds

Use it at your own risk!
Please support the developer(s)!

[ronnz98]

New test builds:

e-3.7-a14-20260413-UNOFFICIAL-GX4.zip

e-3.7-a15-20260413-UNOFFICIAL-GX4.zip

Potentially this then could also work:

e-3.7-a14-20260413-UNOFFICIAL-vidofnir.zip

e-3.7-a15-20260412-UNOFFICIAL-vidofnir.zip

[bibou761]

Hi Ronnz.

Thanks for your dev !

For GX4 pro, GX4 or vidofnir is preferred ?

get.libremobileos.com not responding. Can you give me the way for install it on my GX4 pro ? Ils it possible to flash it with the gigaset standard recovery (oem unlock OK and USB debug OK) ?

Thanks a lot,

Cyril.

[bibou761]

Hello,

With wayback archive, I have found recovery for x23, but not for GX4. Is it the same ?

[aibd]

Did you check the difference between GX4 and GX4 Pro? The check is “do they share the same device codename?” [HOWTO] Find device codename.

[bibou761]

Hi.

The GX4 pro as the same specs point for point with the Volla X23 (6Gb of RAM/128Gb ROM) and the GX4 only 4Gb/64Gb.

[bibou761]

Okay. I can access the standard recovery mode of my GX4 Pro by pressing Volume + and Power. If I understand correctly, it’s impossible to flash another operating system with this recovery mode, and I have to use the LibreMobileOS recovery. I asked the question in the LibreMobileOS Telegram group, and I was told that the server was down and there was no way to fix it. The Wayback Machine archives contain the boot.img and vendor_boot.img files for the X23, but not those for the GX4. So my question is: can I flash the boot.img and vendor_boot.img files from the X23 onto my GX4 Pro since they have the same specs?

[piero]

recovery.img is generally included into the /e/ .ZIP. (could be into the payload.bin)

[UNOFFICAL BUILDS] Gigaset GX4 (GX4) / Volla Phone X23 (vidofnir) for eOS-a14 3.1.x

New test builds: e-3.7-a14-20260413-UNOFFICIAL-GX4.zip e-3.7-a15-20260413-UNOFFICIAL-GX4.zip Potentially this then could also work: e-3.7-a14-20260413-UNOFFICIAL-vidofnir.zip e-3.7-a15-20260412-UNOFFICIAL-vidofnir.zip

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

. Preparation : 1) install the flashing tools On your PC . see common steps for all devices ( adb & fastboot ) . see Samsung Brand Additional steps (Heimdall, Odin) . [Solved] Windows does not see my phone in Fastboot mode . you may want or need to flash first an appropriate Stock Vendor Firmware to your device as a sane base : Stock firmware must be the latest existing relative to the /e/Os android version you want to install (but not higher) click here to see details . 2) Allow …

[ronnz98]

Please wait until testing. I dont have yet feedback and it might brick your device

[bibou761]

I’ve tested with GS5 /e/os ZIP (I have this device too) and no recovery.img found. Payload.bin have this files :

-boot.img

-dtbo.img

-product.img

-system.img

-vbmeta.img

-vbmeta_system.img

-vbmeta_vendor.img

-vendor.img

What files do I need ? If there are multiple files, in what order should I flash them ?

[piero]

many recent devices don’t have separate “recovery” partition, but recovery is part of the boot.img or vendor_boot.img.

in most case additional partitions to flash prior to recovery are : dtbo, vbmeta, boot

[aibd]

@bibou761

get.libremobileos.com not responding

Same here. You must search to find the correct install instructions.

[piero]

LMODroid Devices · GitHub

[bibou761]

Argh. I try to but it’s very hard. Telegram LMO group can’t help me too. I’m lost

I found this for GS5 via wayback archive of LMO (page 6)

Wayback Machine*

But nothing for gx4 or gx4 pro. Only for x23 (same hardware of gx4 pro).

For the GS5, are these the files needed for recovery?

In what order should I flash them?
Thanks again for your help

[bibou761]

@ronnz98

Gigaset GX4 (GX4) / Volla Phone X23 (vidofnir) for eOS-a14 3.1.4

e-3.1.4-a14-20250920-UNOFFICIAL-GX4.zip
Download e-3.1.4-a14-20250920-UNOFFICIAL-GX4.zip (eOSBuildsRonnz98)

e-3.1.4-a14-20250920-UNOFFICIAL-vidofnir.zip
Download e-3.1.4-a14-20250920-UNOFFICIAL-vidofnir.zip (eOSBuildsRonnz98)

Please see sources and install instructions including recovery here:

https://git.libremobileos.com/LMODroid-Devices

https://get.libremobileos.com/devices/GX4/builds
https://get.libremobileos.com/devices/vidofnir/builds

Use it at your own risk!
Please support the developer(s)!

Hi all.

For GX4 pro, use vidofnir (Volla X23).

Extract boot.img ans vendor_boot.img from e/os ZIP ans flash thème in fastboot mode (unlock bootloader before). Reboot into recovery ans flash ZIP un ADN command.

3.1.4 flash ok bit freeze on Gigaset spash screen when I reboot it.

With same method for Volla OS, it’s OK. My GX 4 pro run today on Volla OS 15.

Cyril.

[ronnz98]

Thank for testing. I look at the github page of volla today:

Volla

and the sources are very outdated-latest version available is A13 based.

Maybe someone want to ask Volla if they want to share newest sources?

[bibou761]

Grrrr.

I have tested today A14 3.7, same result : freeze ont Volla/gigaset spashscreen.

Cyril.

[bibou761]

3.7 A15 tested and… SUCCESS !!!

Cyril.

[piero]

@bibou761

My GX 4 pro run today on Volla OS 15.

@bibou761

I have tested today A14 3.7, same result : freeze ont Volla/gigaset spashscreen.

probably because your device have volla a15 firmware as a base