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i updated my tipo two days back.from then on my edge network is not connecting even after the reboot and deselecting the data limit.hope you guys can give me a solution to this problem
My phone connects properly to Edge network and doesn't get disconnected.
Ask your operator for exact APN settings and try again. Check signal strength.
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try what he said.
if still not working, check your network settings
or try to perform the update again,, http://www.sonymobile.com/global-en/tools/update-service/