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I have an Xperia Play that was originally with Verizon and therefore using CDMA. I want to use it with the Rogers network now.

I've read that the Qualcomm chip inside supports both types of networks by default. Is it possible to change it to GSM?

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up vote 2 down vote accepted

Not going to happen. Sorry. While MSM8655 supports GSM - Play Verizon's version of radio software makes no use of it. You can not reflash the radio software because the bootloader is locked. And even if you could - the GSM bands are not "phased" in your phone. "Phasing" is a process of calibrating the phone during manufacturing - without it you would get no 3G, at best you could probably get very poor 2G performance if any at all.

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Well that's unfortunate. Thanks for the help. – Baez Feb 28 '13 at 4:13
I also have an Xperia Play GSM and flashing a CDMA firmware will convert the radio to CDMA. But it looks like CDMA versions dont have the same privilege because it does not have a sim slot. – forums Feb 28 '13 at 13:01
Xperia Play GSM has an unlockable bootloader - so it allows flashing the different radio image. But I do not think it is functional. Do you have any proof of a successful conversion? – user23414 Feb 28 '13 at 16:31

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