Basics of Mobile Communication, Tools & instruments used in mobilephone repairing, Various components used in mobilephones, Basic parts of mobile phones (mic,speaker, buzzer, LCD, antenna, etc), use of Millimeter, Use of Battery Booster, Basic Circuit Board/ MotherboardIntroduction, Assembling & disassembling ofdifferent mobile phones, Soldering & Disordering ComponentsUsing Different Soldering Tools, Names of Different ICs, Work of Different ICs, Working on SMD/ BGA ICs and the PCB, Fault finding & Troubleshooting. Jumpering Techniques, Troubleshooting through circuitdiagrams. Repairing procedure for repairingdifferent hardware faults.Software, Flashing, Formatting, Unlocking, Use of secret codes, Downloading, Bluetooth/infrared