This is how I downgraded from Pie to Oreo. I can't guarantee it works for everyone but it worked for me. It required an SD card and a computer.
This is not a guide for the android development savy users but for people who preferred oreo to pie...
tutorial downgrade 1st page.. can work at security patch 01.08.19??
after update security patch
my TA1004 GPS always LOST
As long as you can source a full image file (around 1.5GB) then it will work.
Don't know why yo...
Wiping all data won't delete the sd card data too right?
It didn't for me