Phone Repair & Maintenance — Course Brief (Bagz Institute Technology)

Overview

A practical, hands-on program that trains you to diagnose, repair, and maintain smartphones (Android & iOS). You’ll learn safe disassembly/reassembly, board-level inspection, multimeter use, battery/charging fixes, display and camera replacement, water-damage workflows, software/firmware recovery, data protection, quality control, and how to run a small repair business.

Who It’s For

Beginners aiming for a job-ready skill, IT/tech enthusiasts adding hardware skills, and entrepreneurs starting a micro-repair business.

Entry Requirements

• No prior repair experience required.

• Basic computer literacy and willingness to follow safety procedures.

• Ability to read small labels/components (use magnifier if needed).

• Recommended: A laptop (Windows/macOS), stable internet for firmware/tools.

What You’ll Be Able To Do

• Perform systematic diagnostics and provide accurate quotations.

• Replace high-failure parts: screens, batteries, cameras, speakers, charge ports.

• Solve charging/boot/display/audio faults using tools and schematics.

• Execute software recovery: backups, resets, ADB/Fastboot, basic flashing.

• Apply ESD & data-privacy best practices.

• Set up and run a profitable repair workflow with parts sourcing and QC.

Tools & Lab Requirements

Essential kit: Precision screwdriver set, spudgers, tweezers, suction cup, SIM ejector, opening picks, ESD strap/mat, isopropyl alcohol (99%), microfiber wipes, thermal paste (for some devices), multimeter, plastic clamps, magnetic tray.
Helpful: Hot air station, soldering iron with fine tips, flux/solder wick, microscope or 10–20× magnifier, DC bench power supply (0–30 V, 0–5 A).
Software (examples): Android Platform Tools (ADB/Fastboot), manufacturer flashing utilities (e.g., Odin/SP Flash Tool), checksum tools, driver packs.

We provide lab benches; learners can bring devices (dead/broken phones) for practice.

Course Outline (8 Weeks · 60–72 hours)

Week 1 — Foundations & Safety

• Smartphone architecture, component identification.

• ESD, PPE, lab setup, data-privacy policy.

• Lab: Tool mastery, safe opening of scrap devices.

Week 2 — Diagnostics & Documentation

• Fault classification (power, battery, display, audio, sensors, RF).

• Triage, ticketing, quoting, client consent.

• Lab: Multimeter basics (continuity, voltage drop), power path checks.

Week 3 — Power & Charging Systems

• Batteries (Li-ion), charge IC, USB-C port wear/failures.

• Lab: Charging port replacement, battery swaps, connector care.

Week 4 — Displays, Cameras & Peripherals

• OLED/LCD behavior, touch/digitizer faults, camera focus issues.

• Lab: Screen and camera module replacement, adhesive management.

Week 5 — Audio, RF & Sensors

• Speakers/mics, proximity, accelerometer; antenna lines basics.

• Lab: Audio path troubleshooting, mic/speaker swap, gasket sealing.

Week 6 — Water Damage & Cleaning Protocols

• Corrosion science, ultrasonic cleaning, risk assessment.

• Lab: Water-damage inspection, board cleaning, “no-power” case study.

Week 7 — Software & Data

• Backups, resets, ADB/Fastboot, bootloader states, FRP ethics.

• Basics of firmware flashing & driver issues; when to escalate.

• Lab: Data transfer/restore, safe reset, firmware recovery on practice units.

Week 8 — Business, Quality & Capstone

• Parts sourcing, counterfeit detection, warranty terms, pricing.

• Quality control checks, final test matrices, documentation.

• Capstone Lab: End-to-end repair (diagnose → fix → QA → customer handover).

Optional Pro Track (2 extra weeks)

• Microsoldering (jumpers, pads, connector replacements).

• Hot-air profiles, rework of small ICs, basic BGA concepts (no reballing).

Assessment & Certification

• Labs (40%): Checklists and practical tasks each week.

• Diagnostics Challenge (20%): Identify & quote multi-fault devices.

• Capstone Repair (30%): Complete end-to-end repair with QA report.

• Professional Practice (10%): Safety, documentation, client communication.
  Certificate of Completion awarded to learners who pass and meet attendance.

Delivery & Schedule

• Mode: In-person labs with instructor demos (hybrid theory available).

• Pace: 2–3 sessions/week, 3–4 hours/session. Evening/weekend cohorts available.

• Class size: 10–16 for close supervision.

Support & Career Pathways

• Access to lab hours, parts/vendor lists, and repair ticket templates.

• Portfolio of completed repairs to support employment or micro-business launch.