A diploma in mobile repairing and maintenance syllabus typically covers basic electronics, mobile phone technology, hardware repair (including soldering and component replacement), software troubleshooting, and practical skills using tools like multimeters and soldering stations. Key topics include identifying components, using diagnostics, fixing common issues like charging or network problems, and learning to read circuit diagrams. 

Core topics and syllabus breakdown

1. Basic electronics and tools

• Introduction to electronics: Learn fundamental concepts like voltage, current, resistance, and power.
• Use of multimeter: Practice using a multimeter for testing basic components and measuring voltage, current, and resistance on the PCB.
• Soldering and desoldering: Develop skills for soldering and desoldering components using both a soldering iron and hot air rework stations. 

2. Mobile phone technology and hardware

• Mobile phone structure: Understand the history and technology, from basic models to smartphones, and learn the working principle of a mobile phone.
• Component identification: Identify and understand the function of various components on the motherboard, such as ICs, processors, and connectors.
• Hardware repair: Learn to assemble and disassemble phones, and perform repairs for common hardware issues.
• Specific repairs: Practice changing components like speakers, microphones, cameras, and displays, as well as BGA IC re-balling and replacement. 

3. Advanced techniques and troubleshooting

• Software issues: Learn to flash, format, and use diagnostic tools for software-related problems.
• Circuit tracing: Understand how to read schematic diagrams and use them for fault finding and troubleshooting.
• Troubleshooting common problems: Gain practical experience in diagnosing and fixing issues like power failures, water damage, charging problems, and network connectivity problems.
• Advanced testing: Learn techniques like hot and cold testing to identify power leakage faults. 

4. Business and safety

• Safety practices: Learn about safety precautions to avoid damage to the phone and harm to yourself.
• Business skills: Some courses include modules on customer service, handling business operations, and potential career paths.