ericssion

1- how can i unlock my sony ericssion k310i . 2-how can i download large file with idea gprs i can download only 2MB. Help:(

Help me with the firmware upgradation of sony ericssion w550i through web. What may be the risk doing it at home? Is there any things that may go wrong during the time of upgradation?

i'm right now not able to shoot video with my sony ericssion w550i. It simply displays pause and move to the main screen. However I can take pictures with the phone. I'm already resetted my phone many time. Plz help. Is that the hardware malfunction of firmware problem... Plz help!!!!