Use device tree with the same name. "kvim" is for Khadas VIM board, second one is explained in pinned HOWTO.
Hiya,
Not sure that this is the best place to post but here goes.
I too own a MiniM8s II 2/16/100 and installed the device tree above and thought everything was ok. I then flashed internal as i have done with many boxes including the same model.
However after a few minutes the wifi completely disappears as the wifi tuns off. I reverted back through all the LE builds but same behaviour. I was looking into finding a stock rom when i found out that other users were bricking their devices by doing this.
After 3 days of research i find out that the manufacturer has completely redone the internals without changing the model name in the last month. This includes the wifi chip. The board is called a D4X16 and the wifi is AW-NB197SM. A few people over at Freaktab have nutted this out this week. If you flash to android using an older stock rom you will brick it.
relevant links:
working mod rom: Bricked "Mini M8S II" (Clone?) - Looking for help with NAND-pin - FreakTab.com
stock Rom: Bricked "Mini M8S II" (Clone?) - Looking for help with NAND-pin - FreakTab.com
images and drama: Bricked "Mini M8S II" (Clone?) - Looking for help with NAND-pin - FreakTab.com
Now i am thinking is there a new device tree that can be added?
Can anyone help/provide me advice?
Due to my layout fixed ethernet is not possible and am afraid to go back to android and brick it. many thanks
sorry to reply to my own post but 
additional info now that i am back connected to the box:
running udevadm info /sys/bus/sdio/devices/* gives me:
P: /devices/http://d0070000.sdio/mmc_host/sdio/sdio:0001/sdio:0001:1
E: DEVPATH=/devices/http://d0070000.sdio/mmc_host/sdio/sdio:0001/sdio:0001:1
E: DRIVER=bcmsdh_sdmmc
E: MODALIAS=sdio:c00v02D0dA9A6
E: SDIO_CLASS=00
E: SDIO_ID=02D0:A9A6
E: SUBSYSTEM=sdio
E: SYSTEMD_WANTS=brcmfmac_sdio-firmware-aml.service
E: TAGS=:systemd:
E: USEC_INITIALIZED=9211466
googling the SDIO_ID leads me to AP6212 (Wifi - linux-sunxi.org) whch seems to be the std wifi chip for the box, despite the markings when i opened it up.
i have attached the log when the wifi disappears, interesting stuff happens in the system.log at 1412:09. box is right next to the router.
hope this helps, sorry, am a bit lost with how to fix. box runs great over LAN on LE.
