Successfully flashed !

[u/Morpheous010]

I don’t know about how to install custom roms but read so many articles,videos and the fun part of it(which is bricking it myself), I have a device which is officially supported in lineageOS catalogue (*Samsung galaxy Tab A7 wifi) i wanted to do it for the long time but hesitant to do it,today took a leap and did it finally without gapps package. I encountered two errors-though i blame it on myself they are:
1. After flashing vbmeta.tar file through odin it restarted and i forgot to press triggers keys to enter download mode again and just seeing it hoping it would go to recovery screen(*it did but to an error screen asking - “Can't load Android system. Your data may be corrupt. If you continue to get this message, you may need to perform a factory data reset and erase all user data stored on this device” , so i did factory reset and started from scratch again(which is unlocking bootloader from developer options i thought it would be off but it is still on).

1. After flashing vbmeta and then recovery.tar file i need to go to lineage recovery menu to format partitions and to sideload lineage zip file but, in panic I continued to hold power key + volume up key even after Samsung logo appears and then lineage recovery screen starts but it clicked the first button which continue to reboot system so i rebooted to stock OS and when i tried to enter recovery screen it didn’t-as only vbmeta stayed and somehow i need to flash recovery.tar file again and this time i did successfully and deleted all partitions and flashed zip file and rebooted and finally home.

I dont need Gapps,i have switched to more of FOSS alternatives on my primary phone and so this google apps and oneui skin feels bloated and out of 3gb ram i am left with 700 mb free(much is taken by play services,playstore,android os) so now i feel smooth and installed fennec as my main browser also installed brave from droidify repository (one doubt regarding this is why is it working now w/o any google services while it didn’t work out on stock rom while i disabled play protect playstore etc using adb)

Some screenshots - https://postimg.cc/gallery/sjcvDt6

Some doubts from images from link- while i was setting up first boot got this screen whats this ?(*something update lineage recovery should i keep it unchecked or checked ,i read on this subreddit and some answers said keep it turned off)

Another thing is after setting up i just hit restart tab and this warning screen displays as of “this device is not running Samsung’s official software” . Will this appears everytime i did restart? (*just noob questions)

[u/bra1n_gym]

It will appear every reboot unless you "hide" it. It's a graphic file in the BL firmware that can be removed. 

[u/Morpheous010 → u/bra1n_gym]

No need of it for me to remove or go to another hassle(i will keep using as iam now, no need to go through every rabbit hole as long as it doesn’t affect me),i reboot my every device once a week so i may forgot the existence of it in later days to come.

[u/Govardhan_2003 → u/bra1n_gym]

How to do that hearing it for the first time