what does unlocked cell phone mean?


is it just i can put my sim card from my current phone into the unlocked and it'll start working?

it means you can use that phone with any network provider's sim

Unlocked Sidekick can be used by AT&T etc.

never had this problem..gl with it though

Some cell phones are designed to use a Subscriber Identification Module (SIM) card, or microchip that stores subscriber data. The SIM card is issued by a carrier and provides cell service by activating any phone into which it is inserted. A locked phone, however, will only recognize a SIM card from a particular carrier. If the cell phone is unlocked, it will recognize a SIM card from any carrier. The "lock" is a software setting that keeps the cell phone "loyal" to one carrier.