This ROM is not my work. It belongs to Askucio Droid (Sorry if I got the spelling wrong) & Team Pixys OS. I am just posting on this section for our devices with detailed instruction.
Your warranty is now void. I am not responsible if you brick your device. Please make sure you know what you're doing and don't proceed if you don't meet the requirements. However I will try to help all I can.
*You must be on Stock EMUI 8
(Download the nano package for arm64 & Android 9)
(Download latest zip.)
*Boot your device into TWRP recovery.
*Wipe->Format Data->YES->Advanced Wipe.
*Mark Dalvik/ART Cache, Cache, Data, Internal & System.
*Perform the wipes. Only wipe these mentioned and nothing else.
*Now go to install and select Pixys OS zip. Delay: 2-4 min.
*Wipe Cache and then install Gapps. Delay around 3-4 min. Again wipe Cache.
*Now goto Reboot-> Power Off/Shutdown.
*Now plug your USB cable into computer and other end into phone while holding Volume Down and boot into Bootloader.
*Flash Stock Recovery for your device.
*Power off by holding power button. Once phone restarts hold Volume Up to enter into erecovery and Wipe Data/Factory Reset.
*Wipe Cache and Reboot.
*Initial Configuration and Start.
Boot your device into Bootloader and flash TWRP from Elemental ROM thread (Be sure to thank KingOfMezi). After that flash latest Magisk for root goodies.
If you face any problem feel free to ask. ROM is not mine. I simply make the guide to flash on Honor 6x. All credit goes to Askucio Droid and Pixys OS Team.