September 22nd, 2012, 07:35 AM
Accept no imitations!
Join Date: Nov 2009
Location: Manchester, TN
Device(s): Galaxy Nexus rooted & ROMmed, OG Droid (retired)
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Unlocking and rooting the phone does give you access to the device's root system files; but that's all it does.
It seems to me that whatever provider you choose will have to reflash the phone with their Optimus S stock image, which will replace the radio firmware and programming to their network.
But there are limitations: A CDMA phone like Sprint (I believe) can only go on another CDMA network (like Verizon) and not a GSM network (like T-Mobile, AT&T and the rest of the world). This is due to the frequency range of the radio hardware... you couldn't flash a GSM phone to a CDMA network any more than you can expect to pick up FM radio on your TV set. They're completely separate frequency bands in the spectrum.
I hope this helps
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