To achieve "Extra Quality" results, you cannot rely on generic APK editors. The community has rallied around two major tools specifically for FIFA 16 Mobile (Android only; iOS modding is not recommended due to sandboxing).
: Essential for "extra quality" visual mods, as it allows for the importing and exporting of textures such as kits and faces. Key "Extra Quality" Features to Edit db editor fifa 16 mobile extra quality
If you want to dive deeper into modding this classic game, let me know. I can guide you on: Where to find the How to fix common black screen crashes after editing The best settings for low-end vs. high-end devices To achieve "Extra Quality" results, you cannot rely