Credit:
All work belongs to K9100ii. Thanks to him it was possible to build eOS and recovery.
gtaxllte recovery
gtanotexllte recovery
gtanotexlwifi
https://sourceforge.net/projects/e-os/files/gta[note]xl[wifi_lte]/gtanotexlwifi/e-2.5-t-20241211-UNOFFICIAL-.zip/download
gtanotexlwifi recovery
gtaxlwifi recovery
New versions for e-2.6.3-t
Install the zip in recovery (TWRP) as you normally would.
More recent than this: [UNOFFICIAL BUILD] Galaxy Tab A - SM-T580 (gtaxlwifi), SM-T585 (gtaxllte), SM-P580 (gtanotexlwifi), and SM-P585 (gtanotexllte) for /e/OS-S and /e/OS-U - #16 by ronnz98 ?
Tried this over an older ronnz build with adb sideload e-2.6.3-t-gtaxllte-signed-ota_update.zip but after reboot, it just bounced back to Orangefox recovery.
Did the same with the linked build and that boots and runs fine.
Might be user error. Is there an extra wipe needed or something?
You will need to use my recovery and format the tablet. Upgrade from Android 12 to 13 is not possible without format. Also sideloading over another build with another signature will not work. For update from 2.5 to 2.6.3 you can use twrp with zip installation. Or zip installation on a formatted tablet. Of course, you can use sideloading if you want.
Do not use my /e/OS-T version for this device. /e/OS-S or /e/OS-U are working.
I suggest still /e/OS-S due to:
Not to be a buzz kill but K9100ii builds of A13 and A14 do not support network monitoring apps.
Can confirm after using this build it does not show any leaks or any blocked leaks which defeats the main purpose of e/os.
the A12 Rom leak monitoring was working fine
Older /e/OS-Build you find here:
/e/OS-S 1.21 seems to be still the most stable version since Bliss3 has issues with this device
New versions for e-2.7-t
How works Bliss with the T version?
Ausgezeichnet. No problem at all.
Sehr gut!
I did not do further U builds due to this comment - could you fix it in your T build?
K9100ii builds of A13 and A14 are for Lineage… He has nothing to do with eOS.
Yes I know, we are using his LOS sources for the eOS builds. I understand the comment that A13 and A14 sources of K9100ii does not support network monitoring apps? But I might missunderstand the comment?
It was Alles OK with older versions. Now AppLounge no longer installs anything! I mean in 2.7 version. Egal GSI or the older gtaxllte…
Yes AppLounge has its issues, I use then the Aurora store.
Good to know that network monitoring does work also for A13/A14 versions. Mulțumesc! 
Bitte, bitte! Alles Klar… Kein Problem. eOS ist wie ein Wasserstrahl. Auf einer Seite patchen und vorbeifließen.
