Hi everyone few days back i have upload os version 6 for samsung e tab which can be flash using twrp i also provide all files of Odin twrp recovery and drivers as well for full flash hope it ill help you alot if dint yet see check before post os search in the bar.
well now i am sharing 7.o firmware update for same version this is also a custom update flash by twrp recovery i also promise to upload tutorial sorry i still need a fast laptop for that which ill buy this week and also provide you video tutorial for that one as well till then try to solve this mystery all by yourself trust me its not that hard at all. in description ill gave you rom and gapps link so download it and flash it in twrp recovery.. till then see ya.
this rom has some hanging issue due to small ram in tab else is fine if have issue try recent post 6.0 flash
https://free4alldevices.blogspot.com/2021/09/samsung-t561t560-custom-update-rom.html
Tutorial how to flash this rom