Install /e/ on a Samsung Galaxy Tab S6 Lite (Wi-Fi) - “gta4xlwifi” (beta)

Tip: Please read through the instructions at least once before actually following them, so as to avoid any problems later.
Warning: Downgrading Smartphones already on Android Q or LineageOS 17.x to Pie or other OS can cause instability or at worst brick some devices
Caution: Flash your device only if you know what you are doing and are OK taking the associated risk. All builds are provided as best effort, without any guarantee. The /e/ project and its project members deny any and all responsibility about the consequences of using /e/ software and or /e/ services.


  • Take a backup of all important data on your phone before proceeding.
  • Ensure your phone is charged more than 50%
  • Check that adb and fastboot are enabled on your PC. If not you can find the setup instructions here
  • Download all the files and images mentioned in the download section below before starting the installation
  • Make sure you have a working data cable to connect your device to the PC. There are cables which are only for charging and do not transfer data.

  • Enable USB debugging on your device. You can find the instructions here
Caution: Before following these instructions please ensure that the device is on the latest Android Stock firmware same as the version of the /e/OS you are planning to install. This can be done by checking for OTA updates available in the Updater. If available run them before installing /e/OS
Tip: Before installing /e/OS on the Samsung Galaxy Tab S6 Lite (Wi-Fi) gta4xlwifi for the first time, install the latest stock OS version 11 build on the device

Downloads for the gta4xlwifi

To understand the difference between /e/OS builds check this guide

Preparing for installation using Heimdall

Samsung devices come with a unique boot mode called “Download mode”, which is very similar to “Fastboot mode” on some devices with unlocked bootloaders. Heimdall is a cross-platform, open-source tool for interfacing with Download mode on Samsung devices. The preferred method of installing a custom recovery is through this boot mode – rooting the stock firmware is neither necessary nor required.

Please note: On windows PC’s to run the installation using ODIN check this HOWTO. The steps given below explain how to install Heimdall and flash /e/OS

  1. Enable OEM unlock in the Developer options under device Settings.

    It appears sometime that the OEM unlock option is missing from Development options, especially on new devices. Please connect your device to the wifi and check of system updates. After a reboot, the option should appear.

  2. Install Heimdall or if you prefer you can Build latest Heimdall suite
  3. Power off the device and connect the USB adapter to the computer (but not to the device, yet).
  4. Boot into download mode:
    • hold Volume Down + Volume Up and connect the USB cable.

    Accept the disclaimer, then insert the USB cable into the device.

  5. Windows only: install the drivers. A more complete set of instructions can be found in the ZAdiag user guide.
    1. Run zadiag.exe from the Drivers folder of the Heimdall suite.
    2. Choose Options » List all devices from the menu.
    3. Select Samsung USB Composite Device or MSM8x60 or Gadget Serial or Device Name from the drop down menu. (If nothing relevant appears, try uninstalling any Samsung related Windows software, like Samsung Windows drivers and/or Kies).
    4. Click Replace Driver (having to select Install Driver from the drop down list built into the
    5. If you are prompted with a warning that the installer is unable to verify the publisher of the driver, select Install this driver anyway. You may receive two more prompts about security. Select the options that allow you to carry on.
  6. On the computer, open a command prompt (on Windows) or terminal (on Linux or macOS) window, and type:

     heimdall print-pit
  7. If the device reboots, Heimdall is installed and working properly.

Installing the /e/ Recovery on your gta4xlwifi

  1. Download the /e/ recovery (linked in the Download section above)

  2. Power off the device and connect the USB adapter to the computer (but not to the device, yet).
  3. Boot into download mode:
    • With the device powered off
    • hold Volume Down + Volume Up and connect the USB cable.

    Accept the disclaimer, then insert the USB cable into the device.

  4. On the computer, open a command prompt (on Windows) or terminal (on Linux or macOS) window in the directory the recovery image is located, and type:
    heimdall flash --RECOVERY recoveryfilename.img --no-reboot

    Replace recoveryfilename with the name of the recovery you downloaded

  5. A blue transfer bar will appear on the device showing the recovery being transferred.
  6. Unplug the USB cable from your device.
  7. Manually reboot into recovery:
    • With the device powered off, hold Volume Up + Power.

Note: Be sure to reboot into recovery immediately after having installed the custom recovery. Otherwise the custom recovery will be overwritten and the device will reboot (appearing as though your custom recovery failed to install).

Steps to install /e/OS from recovery

Tip: Use the volume keys to navigate and power key to select
Tip: If your PC is unable to detect your device in adb the /e/ recovery main screen tap Advanced » Enable adb

On /e/ Recovery Main Screen:

  1. Select Factory reset
  2. Select Format data / Factory reset option
  3. Next screen will display a warning that this action cannot be undone
  4. Select Format data to proceed or Cancel if you want to go back
  5. If you selected Format data ..the format process will complete

    Tip: You will see text in small font on the lower left side of the screen mentioning format progress

    The small font text would be similar to this

     Wiping data
     Data wipe complete
  6. Display will now return to the Factory Reset screen

    Tip: Use the volume up key to choose the arrow at the top to go back to main screen

    In /e/ Recovery main screen:

  7. Select Apply Update and in next screen Apply update from adb
  8. In the next screen, the device is now in sideload mode

    Note at this point the Cancel option is highlighted that does not mean you have canceled the action. The device is in adb sideload mode.

  9. On your PC type begin adb sideload. Type the below command in a console

    adb sideload

    Replace with the name of the /e/ OS file you downloaded in the previous section

  10. Press enter key on the keyboard to start the sideloading The screen will show the progress percentage…This might pause at 47%
  11. Give it some time
  12. The PC console will now display Total xfer: 1.00x
  13. The phone screen will now display some text with a message similar to

    Script succeeded result was [1.000000]

    This means that the install was successful

  14. Use the volume key to select the back arrow on the top left of the phone screen
  15. Go back to the main screen and select Reboot system now

    The reboot process may take 5 - 10 minutes

Success: Congratulations !! Your phone should now be booting into /e/OS !!
To find some troubleshooting tips… click here


  • Getting a Total xFer ':' 0.01x message - Try to upload the /e/OS to internal storage and retry to install
  • adb ':' sideload connection failed ':' insufficient permissions for device error - Try to execute the commands adb kill-server and adb start-server and retry
  • Running adb shell twrp install /sdcard/</e/ zip package> raise non-existent directory error - Try to check solution here
  • Getting an insufficient permissions error - Try the solution given here
  • When running "adb devices" in bash a device is shown as "unauthorized" - Try the solution given here


  • Errors while running TWRP version 3.4.x.x or above - Try downloading and using a previous TWRP version.. below 3.4.x.x
  • In TWRP if this error shows up failed to mount /preload - Try in TWRP wipe screen in advanced menu select preload and swipe to wipe
  • /cache/recovery/xxx -> no such file or directory error while flashing a ROM - On PC run adb shell in the console now create a folder called recovery for e.g. here the devicecode name is violet "violet :/cache# mkdir recovery"


  • Trying to troubleshoot mobile connectivity issues - Read this guide

Tip: To suggest changes to this install guide documentation, please visit the Galaxy Tab S6 Lite (Wi-Fi) specific topic on our community forum. To report issues in the build please refer this guide

This documentation “Install /e/ on a Samsung Galaxy Tab S6 Lite (Wi-Fi) - “gta4xlwifi”” is a derivative of “install LineageOS on gta4xlwifi” by The LineageOS Project, used under CC BY.