@mmie4jbcu Yeah, it seems wifi and bluetooth aren't working for me. My memory configuration is also weird. I was supposed to have 8gb ram but it shows 5.53gb ram and 2.77gb swap.
I do have the 6221A-SRC metal cover which should be the same RTL8821CS network chip. Any idea how to debug the wifi?
On the sidenote, I saw that many of the updated stock android firmware (x88 pro 20) from 4pda didn't work for me. Only the initial firmware worked for me. I did manage to flash t95plus android firmware and it booted.