How to uninstall ubuntu 22.04 and install ubuntu 20.04?

Yep, I know it)
It worked with vim3, but vim4 imgs doesn’t want to work

Do you have a working img on vim4 for ubuntu 20.04?

(I need it for work + opencv is not installing on 22.04, it throws bunch of errors)

Do you have ubuntu 20.04? I need it to complete my work

Hi, you can compile emmc image by yourself with Fenix GitHub, Just tested and compiled, cannot try cos I Have only VIM1S but image built correctly. Only have to use amlogic burning tool to flash It on your VIM4 board
As you can see image was here.

(If you want I can send you that Image)

I would be glad if you’ll send it. And I want to build my own one, can you explain the process or where I can find about it?

here:

is really easy, install dipendences and use only 2 commands to build your own Ubuntu/Debian image (both for SdCard or Emmc)
as you can see is on khadas github,
see U.

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Hello @Agent_kapo

If you just have OpenCV issue we can help you to resolve it. Please provide more details about the OpenCV errors.

As @pappicio posted above, you can also choose to build the Ubuntu 20.04 image yourself.