Download for LibreELEC

So, do you have the android version of kodi installed? What server?

I don't know if this will work, but it seems that the Skystream uses an Amlogic S905, so you could try using an image from [8.2.3.1] LibreELEC 8.2 for S905/S905X

You need to follow the installation instructions. [HOWTO + FAQ] Install community builds on S905/S905D/S905W/S905X/S912 device

which means, you install to a usb or microsd. That means, that Libreelec will run form the usb, & will not affect the android part of the box.

Hello, I have the BeeLink GT1 Ultimate S912 3GB RAM 32GB ROM; Android 7.1.2; Kernel: armv8l; Buid number: 708NO; Board: q201; Wi-Fi: AP6255

Installed KODI 18.0 Leia and I would like Dual Boot LibreELEC. Can you please advise which version of LibreELEC for my BeeLink will be the best. I apologize for bad English, but I use Google Translator.
Thank you in advance for your information