Official instructions

[LineageOS GTS28VEWIFI)[https://wiki.lineageos.org/devices/gts28vewifi/install)

Preparation

Computer

Install the tools on computer used for the flashing the firmware.

Android Tools

TODO

Heimdall

Download from here TODO
Install necessary packages for compilation (Fedora 28):

# sudo dnf install make automake gcc gcc-c++ kernel-devel pkcconfig zlib-devel libusbx libusbx-devel

Compile libpit first:

# cd libpit
# ./configure
# make

Compile Heimdall

# cd heimdall
# ./configure
# make

Tablet (Samsung Galaxy Tab S2 Wifi)

The tablet needs to be prepared for the flashing operation.

Enable OEM unlock

• Settings -> About -> Software information -> Tap 7-times to Build Number
• Settings -> Developers Tools -> Enable OEM unlock

USB Debugging

• Settings -> Developers Tools -> Enable USB Debugging

Checking tablet connection

When you connect the tablet to the computer first time, the computer is not authorized:

# adb devices
xxxxxxxxxxxxxxxxxxx     unauthorized

The window should appear on the tablet, so, allow the connection and check it again:

# adb devices
xxxxxxxxxxxxxxxxxxx     device

Tricks

If you are in Download mode, hold Power + Volume Down for 20 seconds to exit.