Developer version update: 2014-05-02
LeWa_ZTE_V970_JB_ROM_2014-05-02
Developer version update: 2014-05-02
LeWa_ZTE_V987_JB2_ROM_2014-05-02
Sorry I don’t know what else you can do. May be try other ROM (warning: wrong ROM will brick your phone), or ask help from the show where you’ve bought it.
You can try other rooting methods. But I don’t take any responsibility
Have you set up your APN (Access Point Names) correctly?
When you turn wi-fi on, do you still se 3G icon?
Its WCDMA frequency supported by your carrier?
Developer version update: 2014-04-25
LeWa_HUAWEI_G510-0010_JB_ROM_2014-04-25
Developer version update: 2014-04-25
LeWa_HUAWEI_G525-U00_JB_ROM_2014-04-25
Developer version update: 2014-04-25
LeWa_HUAWEI_Y300-0000_JB_ROM_2014-04-25
Developer version update: 2014-04-25
LeWa_HTC_pyramid_JB_ROM_2014-04-25
Developer version update: 2014-04-25
LeWa_HUAWEI_G520-0000_JB_ROM_2014-04-25
Developer version update: 2014-04-25
LeWa_i9300_ROM_2014-04-25
Developer version update: 2014-04-27
LeWa_M2_JB_ROM_2014-04-27
Why you didn’t put some screenshots of your game together with play store link? I mean your description is very good, but a picture worth thousand words 
Developer version update: 2014-04-25
LeWa_ZTE_U956_JB2_ROM_2014-04-25
Developer version update: 2014-04-25
LeWa_ZTE_V889D_ROM_2014-04-25