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Make sure which sub-model you are buying
on April 17, 2013
Before you buy, please make sure which model you are buying.
Not all the Blackberry Z10 will work on 4G or LTE in the United States. And there are 5 different Models.
The Balckberry Z10 [Model: RFH121LW] will NOT WORK with T-Mobile USA. And people is buying careless. And the STL100-1 has a slower processor manufactured by Texas Instruments, while the STL100-2, STL100-3, STL100-4 do have the Qualcomm Snap Dragon.
The seller does no explain which model is selling. Please ask & complain.