I have a Nanopc t4 and have tried and tried to get Android 8 installed I follow the steps use etcher to flash to SD card and when put it in t4 nothing when I try to check the card in booted android 7 is says sd card is corrupted tired another sd card same results but can format the cards and then they read any thoughts ?

or is there a way to buy and SD card with Android 8 on it ? of if someone could put it on an SD card and it work would be willing to buy iy

thank you