Programmers like JCID, iRepair P10, and other similar devices are specialized tools used in phone and tablet repair for reprogramming and unlocking purposes. These tools allow technicians to reprogram essential components like EEPROM, NAND chips, and baseband modules, which store vital information about the device’s functionality, such as serial numbers, Wi-Fi/Bluetooth addresses, and other system data.

These are also used to fix issues like Face ID, fingerprint sensors, and other security-related components after repairs. Programmers are essential for unlocking devices, restoring lost data, and enabling functionality after replacing components.