Recently switched to MIUI from RCMix 3D. I am now finding that several times a day I lose my data connection, even though data is still switched on. To get it back, I have to switch off data, wait a minute, then switch it back on. First I tried MIUI GB and experienced this. Tried upgrading to 220.127.116.11U_26 radio. No difference. Have switched to ICS 4.0.4. Same problem. Any suggestions? Thank you.