Is wifi location working in maps in your repack? That's the the only thing I'm missing in my Onda.Because off the missing languages such as dutch and polish in the v1.5 firmware, I have made another repack based on the v.1.4 firmware but with the same performance as the v1.5 firmware.
-Removed all chinese apps.
-Added Gapps and Youtube.
-Added guided installation on first boot.
-Edited build.prop for compatibility with Gameloft and performance upgrade.
Onda vi30 dual core v1.4 repack performance upgrade bertss50