@大法师 I think you meant replace "console=ttyS0" with "console=ttyS1"? Anyway, console=ttyS1 fixed it.

Perfect! Thank you!

So I wanted to experiment with Armbian and tried to flash the Armbian OS for Orange Pi 5 to Cool Pi 4B. The flash failed because Orange Pi 5 Armbian is not compatible. So I reflashed Cool Pi 4B Android 12 back, but now it doesn't boot anymore. The Cool Pi logo does not even show up anymore, just black screen. Does anyone know what happen? Did I mess up my Cool Pi 4B board? Anyway to fix this?

Ok, I was able to make it work and image has been downloaded to the board, but now it doesn't boot. I don't see the Cool Pi logo anymore. I think the bootloader or something got messed up. How do I fix this?

How do I fix this? Now my Cool Pi can't boot.

and Emulec?

Can you provide an android 12 image with wifi support?

As the title says, would Cool Pi provide Batocera, Retropie, Lakka, Recalbox devs cool pi 4B boards for support? This would expand Cool Pi 4B customer base a lot I would think.

I get the message "Android system serial console enabled performance is impacted. to disable, check bootloader." How do I disable this?

Not sure if this is the right place to report issue, but WiFi doesn't work with this build I don't think.

@jack_admin Thank you! It works!

@jack_admin Thank you! Sucessfully downloaded and burned the coolpi-a12.img to eMMC using Win32DiskImager, but Cool Pi 4B can't boot it. It keeps cycling the COOLPI logo. I saw there's a tool called RKDevTool.exe, but how do you use this tool?

@大法师 said in coolpi 4b running android12:

https://pan.baidu.com/s/1hArknRaEB7LPh7FobxItGQ

I can't download this software from baidu. Can you please upload it to somewhere else, like Google Drive?

@jack_admin
Thank you. But I can't seem to download it. It keeps saying "Please wait, getting download link..."

How can I install Android on this SBC?