I used 3 diff ROMs namely; 1 ViperDNA rom 2. NOS_m7_v3.0.3_GSM 3. EclipticNA-Revamped-Inverted[4.1.2][Sense5] I have similar issues with all of them; I can access internet with firefox and opera, apart from this I can't install apps via 3G/HSDPA. I can install apps via wifi and internet pass through. Apps installed are not working via 3G/HSDPA but my mails are dropping. I have data bundle on my phone, access point is configured perfectly because I work in same Telecoms company(MTN Online). I am based in Lagos, Nigeria.