For me the device was buggy with the e-0.9-n-test version, slow with lineageOS 14.1, and only really works using CM13 Android-Andi’s based.
I don’t own the device for the time being, I have just sold my P3110, but with a linux OS installed on it. (i have ordered a P5100)
because the specs are not enought powerfull for modern Android, i dare to propose here something different than /e/OS (for this device)
The new main active xda supporters/contributors/developpers/maitainers of this device recently did a mainline linux kernel to be used with “postmarketOS” based on “Alpine-Linux”.
it is a third life for this device Thanks to @aat596 and @Migthy
xda thread : https://forum.xda-developers.com/t/linux-postmarketos-native-linux-on-samsung-galaxy-tab-2-unified.4171483
documentation : https://wiki.postmarketos.org/wiki/Main_Page
I could not find a way to deal with community pre-build .IMG (heimdall failed at 2%) but i have success building from sources with the help of the pmbootstrap tool (you don’t need a big machine as for android building)
You can find more discussions here on our forum about postmarketOS
https://community.e.foundation/search?q=PostmarketOS
Here are my builds for our lovely “espresso” :
https://murena.io/s/c884DPG43SWrs5g
Important Edit : for Wifi working,
you need to boot the device in TWRP,
then choose “reboot”/“system”