Look for “EMUI 12 RROS port” or “LeOS – EMUI 12 style” on XDA. Avoid shady “direct download” links — many are malware bait. Want me to expand any section — like step-by-step flashing warnings or alternative custom ROMs?
Here’s a short, interesting angle for a blog post titled : The Hook The Mate 20 Lite launched with Android 8.1 (EMUI 8.2). Officially, it never received EMUI 12. Yet, search interest for “EMUI 12 download” keeps growing. Why? Because dedicated developers have ported EMUI 12 from newer devices—and it mostly works.