Practical diagnostic guides, troubleshooting workflows, and technical articles authored by Director & Lead Instructor CH Imtiaz Ahmed (26+ years mobile engineering experience) and faculty at CH Mobile Repairing & Institute.
A systematic diagnostic methodology for Android motherboards, starting from non-invasive power draw analysis to chip-level short detection.
Read Full GuideA systematic diagnostic methodology for Android motherboards, starting from non-invasive power draw analysis to chip-level short detection.
An introduction to smartphone motherboard architecture and component functions.
Diagnosing charging circuit faults across USB Type-C protocols, OVP chips, CC lines, and battery management ICs.
Mastering heat management, flux selection, tip geometry, and pad restoration for high-density multi-layered PCBs.
26+ Years Experience
Director and Lead Instructor at CH Mobile Repairing & Institute, with over 26 years of mastery in mobile hardware engineering, chip-level diagnostics, and technical training. Committed to providing accessible, high-quality technical education and empowering youth with practical skills.
Answers to common questions about admissions, practical training, and career opportunities.
Reading guides builds conceptual understanding. Practical workshop training under Director & Lead Instructor CH Imtiaz Ahmed builds professional repair mastery.