How do you "unlock" a phone so that it can work with any carrier?

Question

details please

Answer 1

It depends on the phone. If you do a search online for your phones model and unlock you should be able to find info on how to do it. Most phones involve hooking it up to a machine or your computer with a cable. Depending on where you live there are some cell phone shops that will unlock phone for you for a fee.

For the most part Nokia phones are the easiest to unlock most of them you can use a free online code generator for the Nokia. You enter the code and it unlocks the phone. But be careful you only have a couple tries. If you get it wrong too many times it will lock the phone permanently and you will have to bring to or send into a shop that specializes in unlocking phones.

Answer 2

2

Answer 3

To get complete detailed workings
SEE LINK BELOW.

A cell-phone carrier typically gets 832 radio frequencies to use in a city.
Each cell phone uses two frequencies per call -- a duplex channel -- so there are typically 395 voice channels per carrier. (The other 42 frequencies are used for control channels -- more on this later.)
Therefore, each cell has about 56 voice channels available.
In other words, in any cell, 56 people can be talking on their cell phone at one time. Analog cellular systems are considered first-generation mobile technology, or 1G. With digital transmission methods (2G), the number of available channels increases. For example, a TDMA-based digital system can carry three times as many calls as an analog system, so each cell has about 168 channels available (see the section on Cellular Access Technologies for lots more information on TDMA, CDMA, GSM and other digital cell-phone techniques).

Answer 4

Wish I knew, cause mine is broken and I can't afford to buy a new one :(