I have read in htcmania that one user use foldermount to solve the problem with the memory, because the phone has 4 GB but 2 GB it use like a emule sdcard, with that is not necessary use a external sdcard but you lost 2 GB. In my xiaomi Mi Pad 16GB I had the similiar problem and I solved with SDFix and for the bigger games I use Link2sD, but only with SDFix was enough.
The user in htcmania say that he solve with foldermount to link the folder from 2GB partition sdcard with the external folder to external sdcard. Here is one link http://forum.xda-developers.com/show....php?t=2192122,
Have anyone tried it ? or SDFix I think is easier .
Is a shame because the phone has a great hadware for this price but software and scene is rubbish.
Iīm between this phone and xiaomi red 1s, I know that xiaomi has a good support and a nice room but luck 4g, and the battery is worst, really i donīt know what to do ... are you happy with this movil the gps and 4G works fine?
I think that could be easy port any rom from xiaomi red 1s or cyanogemod from the same phone seems very similiar, I can ask in miui forums they port roms for other device and help you if you want do it.
So sorry I replay other thread wiht similar info.