I have Cupcake 1.5 and i'm getting funny "No Service" issues. Can I reinstall my cupcake update manually? The phone is unlocked using a Three UK Sim card. I have heard that rooting the phone will re-lock it. Therefore, if I have to root the phone to reinstall 1.5 I cannot do it as I don't want to have to get the phone re-unlocked again.
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