My Network blackBerry smartphones is constantly changing! Help, please!

From 3 to 4 weeks, my phone will pass between the networks.  It will show GSM, edge, EDGE, 3G, 3g and sometimes even SOS.  I have no idea why he keeps it doing.  And it switches between each of the connections within minutes of each other.  Also does it only when I'm at home and on the floor of my house.  I called AT & T, my provider, and they did a kind of software change, my phone to connect to a different and closer Tower, but I still have the same problem.

Someone at - it ideas?

Thank you very much!

What version of the operating system you have installed? Check under Options | Everything. If it is less than 4.6.0.297, Itry retry the upgrade to this version. That and the previous version added a choice for network selection mode.

If you do not have this version, go in manage connections | Try to change your mode of 2G and 3G network and mobile network options. See if that makes a difference

Tags: BlackBerry Smartphones

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