Quote:
Originally Posted by peteyspambucket
If you unlock the Verizon Storm, and put in a T-Mobile SIM chip, how does the phone know whether to use CDMA of Verizon or GSM of Tmo? Is there a setting that has to be changed to force it to use only the Tmo SIM chip?
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The phone should be set to GSM Only in Mobile Network Options, but it doesn't have to be. If you're using T-Mobile GSM, you're obviously not a Verizon subscriber, so the phone can't register on Verizon CDMA.