A “mobile phone repairing course” teaches you skills to fix/maintain smartphones — both hardware (physical parts, circuits, displays, batteries, connectors, etc.) and software (firmware-flashing, unlocking, reinstalling OS, troubleshooting software issues, etc.). Typical components of the curriculum include: \t•\tUnderstanding mobile hardware components (display, battery, connectors, speaker, microphone, etc.) \t•\tBasic electronics, using tools like multimeter, soldering station, test equipment