Help, New android user?

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http://androidforums.com – Hi, I'm sorry if I'm just repeating a thread or such. I am very new to the whole android experience. If need be, I will delete this thread as soon as I get an answer to my question. :3 I just purchased a LG Motion 4G, carrier is MetroPCS. I get absolutely no signal at my house and was wondering if there was any way to text (standard word texts, no pictures or videos) using my wifi? The old phone I had would text no matter what. I could be on a roaming signal and it would text just fine, and it was provided by Metro as well. I would have thought that a phone more advanced, such as m (General)