It is possible that there are some options missing from armbianEnv.txt. On my Banana Pi M2 Zero, beyond setting the overlays, some additional settings had to be added to armbianEnv.txt. These options are:
param_spidev_spi_bus=1
param_spidev_spi_cs=0
If I understood the page about the OrangePi Zero (https://linux-sunxi.org/Xunlong_Orange_Pi_Zero), using BUS 1 and CS 0 should work (however, I don't have one to test).
You can find a more complete description about all possible parameters for armbianEnv.txt for the H3 on the page https://github.com/armbian/sunxi-DT-overlays/tree/master/sun8i-h3
FurretUber got a reaction from gounthar in H2+ SPI with OrangePi Zero running Linux 5.10.xx-sunxi