At build 1.5.6 seems there are only smiley codes at all devices. I think it has to do with the "SmileyParser.smali". I compared with older smali files from MIUI 1.4.15 and there are some difference. I attached the version from MIUI 1.4.15 and 1.5.6! At 1.4.15 there are 2 smali files. Maybe anybody can help with this.