What is blacklisted phone?

A blacklisted phone is a phone that has been reported lost or stolen, or has been involved in fraudulent activities. When a phone is blacklisted, it will no longer be able to make calls or access data services on the network, even if it is still functional. This is because the phone's unique identification number, known as the IMEI (International Mobile Equipment Identity), is added to a global blacklist database maintained by the mobile network operators. Blacklisted phones can still be used for certain functions, such as playing games, taking photos, or using Wi-Fi, but they cannot be used to make calls or access the internet through a data plan. It is illegal to sell or buy a blacklisted phone, and doing so can result in criminal charges.