@hadayat

I forgot to mention that my N9 is openmode, Kernel Plus and aegis install hack.

Then I installed libsms-utils0_0.5.17.3 0m7_armel-mod.deb. I was in Harmoji 0.6.6 because I could not send text messages with the latest version...few weeks later, thanks to you, i copy paste libsms-utils.so.0.0.0 in /usr/lib and voila!

Send sms/mms containing emojis with Harmoji 0.7.3 works perfectly

PS : Switching from UCS-2 to UTF-16 it was THE solution.

Furthermore, I'll test with my second N9 without openmode & hacks ;-)