How to Buy a Used Unlocked Cell Phone
Determine your network type., Determine the network frequency bands needed.
Step-by-Step Guide
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Step 1: Determine your network type.
You will need to buy an unlocked cell phone that is compatible with your current wireless carrier.
Cell phones will either reside on a Code Division Multiple Access (CDMA) or Global System for Mobile Communications (GSM) network.
Buy a GSM cell phone if the phones for your carrier require the use of a Subscriber Identity Module (SIM) card.
Examples of service providers on GSM networks are T-Mobile and ATT.
Buy a CDMA cell phone if you use a carrier that does not require the use of SIM card and requires activation using an Electronic Serial Number (ESN).
Verizon and Sprint are examples of service providers on CDMA networks. -
Step 2: Determine the network frequency bands needed.
Some cell phones may not work internationally, or may only function in certain regions of the world.
Choose a phone with the frequency bands of 1900 and 850 if you plan on using the phone primarily in North America.
Select a phone with the 1800 and 900 frequency bands if you plan on using the phone in Europe and other regions outside of North America.
Detailed Guide
You will need to buy an unlocked cell phone that is compatible with your current wireless carrier.
Cell phones will either reside on a Code Division Multiple Access (CDMA) or Global System for Mobile Communications (GSM) network.
Buy a GSM cell phone if the phones for your carrier require the use of a Subscriber Identity Module (SIM) card.
Examples of service providers on GSM networks are T-Mobile and ATT.
Buy a CDMA cell phone if you use a carrier that does not require the use of SIM card and requires activation using an Electronic Serial Number (ESN).
Verizon and Sprint are examples of service providers on CDMA networks.
Some cell phones may not work internationally, or may only function in certain regions of the world.
Choose a phone with the frequency bands of 1900 and 850 if you plan on using the phone primarily in North America.
Select a phone with the 1800 and 900 frequency bands if you plan on using the phone in Europe and other regions outside of North America.
About the Author
Diane Ferguson
Brings years of experience writing about creative arts and related subjects.
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