Supports cellular and data State: Active

Features & Usability

Automated Usability (beta)

This device currently offers minimal features, most of the smart functionalities might not work yet. It can be a very nice second device.

  • Actors:

  •  Manual brightness
  •  Notification LED
  •  Torchlight
  •  Vibration
  • Camera:

  •  Flashlight
  •  Photo
  •  Video
  •  Switching between cameras
  • Cellular:

  •  Carrier info, signal strength
  •  Data connection
  •  Incoming, outgoing calls
  •  MMS in, out
  •  PIN unlock
  •  SMS in, out
  •  Change audio routings
  •  Voice in calls
  • Endurance:

  •  24+ hours battery lifetime
  •  7+ days stability
  • GPU:

  •  Boot into UI
  •  Hardware video playback
  • Misc:

  •  Anbox patches (deprecated)
  •  AppArmor patches
  •  Battery percentage
  •  Offline charging
  •  Online charging
  •  Recovery image
  •  Reset to factory defaults
  •  RTC time
  •  SD card detection and access
  •  Shutdown / Reboot
  •  Wireless charging
  •  Wireless External monitor
  •  Waydroid
  • Network:

  •  Bluetooth
  •  Flight mode
  •  Hotspot
  •  NFC
  •  WiFi
  • Sensors:

  •  Automatic brightness
  •  Fingerprint reader
  •  GPS
  •  Proximity
  •  Rotation
  •  Touchscreen
  • Sound:

  •  Earphones
  •  Loudspeaker
  •  Microphone
  •  Volume control
  • USB:

  •  MTP access
  •  ADB access

Confirmed, depending on the maintenance

Not Working

If there is a link here, follow it to learn more''


Working to some extent but with issues

Global Issue

Issue is not specific to this device


Subject to port development

Release channels

This device gets updates through these channels, learn more about OTA updates

Ubuntu Release
Release Date
Xenialdevel2022-07-31/331-07-2022Daily built development releases

Samsung Galaxy S7 (herolte)


CPU2.3GHz Quad-Core (Custom Core) + 1.6GHz Quad-Core (Cortex®-A53)
ChipsetSamsung Exynos 8890
GPUMali™-T880 MP12
Android Version8.0
Battery3000 mAh
Display2560x1440 pixels, 5.1 in
Rear Camera12 MP
Front Camera5 MP

Known limitations

Audio calls

While they work (headphones, speaker, loudspeaker), volume can not be changed.


Current oFono needs to be patched to work with the herolte. A precompiled binary can be downloaded here.


# Remount system with write permission
sudo mount -o remount,rw /
# Extract archive and install new oFono version
tar xvf herolte_ofono.tar
sudo dpkg -i ofono_1.18*.deb
# Reboot


While Wi-Fi is working there is no reconnection after reboot. This is due to several things:

  • Issue with MAC address loader. Partially fixed and not published, need to be reworked as it prevents loading the right calibration file.
  • Unknown issue, probably a race condition between Wi-fi driver and Samsung's Macloader


MMS are working but a change needs to be applied until it gets merged to xenial

sudo ubports-qa install xenial_-_android9


Code is not yet merged in the xenial branch but it can be activated thanks to:

ubports-qa install indicator-power 48


The port is not ready to use the installer, yet :)

Fetch files and tools

Download and install the following tools:

Download the following files:

Unlock OEM installation

In Android activate developper mode thanks to this guide.
Then go to Android developer options and activate enable OEM unlock slider.

If this step is not done you will likely get the error Custom binary blocked by FRP lock when flashing halium-boot.img.

Install TWRP

Instal the TWRP recovery as instructed in its documentation.

Reboot to recovery and format data

  1. From the computer enter adb reboot recovery.
  2. Go to wipe->Format Data the enter yes as instructed.
  3. Flash system.img thanks to ./halium-install -v -i -p ut ubports-touch.rootfs-xenial-armhf.tar.gz system.img.
  4. Flash halium-boot thanks to ./Heimdall/build/bin/heimdall flash --BOOT halium-boot.img.
  5. Wait, after the reboot, you should have UBports :-)
  6. Some fix might be required, see Known limitations chapter.