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GSM, CDMA, 3G, 4G Network Concept and structure

ESN, IMEI and SIM relationship, theory and concept

Determination of physical and liquid damage detection on PCB boards

Beginning soldering and desoldering techniques

Use of proper tools and opening techniques to dismantle all make and model of cell phones

Assemble and disassemble practice on straight, flip and slider phones

Phone malfunction and liquid damage troubleshooting

Change keypad input membrane & key contact corrosion repair

Data transfer & recovery

Cell Phone Unlocking - how to take carrier locks off GSM Phones

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