Himedia Q5 Quad are lock adb system at the moment.
There are 3 XBMC version are work on Himedia Quad model including Q16 Quad,Q5 Quad and Q10 Quad.
Uninstall your existing one and delete all related folder before install the the new one.
(1) Latest 14.0 Kodi Alpha3 (or older Alpha2)
http://mirrors.xbmc.org/snapshots/android/arm/xbmc-14.0-Helix_alpha3-armeabi-v7a.apk
(2) SPMC (Final version base on XBMC Gotham 13.3.2)
This one better compatible with Android TV Box compare with official XBMC.You can download from Playstore or this link:
http://spmc.semperpax.com/
(3) XBMC Official release by Himedia, base on XBMC 13.1.
But I don't recommend this one because this one having problem with plug-in.If you really want then only I give you the link.