(post deleted by author)

I am running a TAB A7 gta4lwifi, SM-T500 with unofficial TWRP 3.6.0 with eOS 2.0-T (updated from v1.2x) but it was quite difficult to get it installed with lots trial&error&learn&repeat.

I started with the latest Samsung stock updated version to be sure to get the latest firmware binaries.

Ok, I have assumed one always gets binary 7 when you are on the latest update level, regardless of the model gta4l / gta4lwifi

This is an erroneous assumption.

Your contribution has in no way helped to solve my problem. Why are you marking “Solution” and thus interfering with further answers? That is counterproductive!

Your accusations are plain wrong, only the thread opener can choose a solution. Good job!