Hi I got blackberry 7230 with Bt (uk) firmware. I'm now using t-mobile multi-sim with it. BB can work only like phone or sms. (data connection refused) even I found APN. Today I download and install t-mobile firmware(uk) as I was thinking that it will alow me to surf internet. But after insallation I can see BT logo and recive text's from BT as they wellcome me in their network.It looks like nothing been installed from T-mobile. Internet still disabled (data connection refused) and once again I was trying both T-mobile and BT Apn's...not working . Can someone help me?