img) from your computer using Android Studio / SDK, mount system and replace the mentioned file in system/fonts with the one with ios emojis using the file manager integrated in twrp.
Get a replacement file with ios emojis (NotoColorEmoji.ttf, can be found if you google it) and save it somewhere on your phone storage. You need to unlock the bootloader (requires wipe, but it was not too complicated to restore afterwards and data was actually not deleted, however you have to backup sms and call logs and it's advisable to backup the contents of your storage just in case). It is possible to get those emojis without rooting.
