CBT-Practice

WAEC GSM Phones Maintenance and Repairs · Section 1

Essential Components, Maintenance, and Repairs of Mobile Phones

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Syllabus content and objectives

Official WAEC GSM Phones Maintenance and Repairs outline · Detailed Syllabus

Content

Block diagrams (power, memory, radio), hardware components (CPU, SIM socket, buzzer), electronic components, preventive/corrective maintenance, repair tools, workshop safety, and common hardware/software faults

Objective

Understand phone structural block diagrams and functions of hardware/software components; test electronic components (resistors, capacitors, transistors, ICs); execute preventive and corrective maintenance (cleaning, soldering, re-balling); use hardware tools (precision sets, multimeters, oscilloscopes) and software tools (unlocking, flashing software); apply workshop safety rules and first aid; diagnose hardware faults (damaged screens, charging ports) and software codes/errors.

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