Basic Parts of Mobile Phones ( Mic,Speaker,Buzzer,LCD,Antenna),Introduction Basic Circuit Board / Motherboard, Components Mobile Phones, Mobile Phone Repairing Tools & Instruments,All Troubleshooting, Repairing Hardware and Advanced Faults, Use of Multimeter, Assembling & Disassembling of Different Types of Basic Mobile Phones,Android Smart Mobile Phones and Tab, Soldering & Desoldering Components Using Different Soldering Tools and Hot Air Gun