Jailbreaking or rooting
WHAT: A process that lets users take more control of their smartphone’s operating system.
PRO: Gives access to apps and features not available on standard phones.
CONS: Voids warranties; can cause permanent damage to phone; opens phones to malicious software.
WHAT: Resetting a cellphone so it can be used on other carriers. Now illegal without carrier authorization.
PROS: Unlocking makes it easier to change carriers; also,unlocked phones can often be used outside the United States.
CONS: Phones in the United States are often incompatible with other networks even when unlocked. Unlocked phones generally cost full price.