About Me

About me


Hello everyone im corey and i'm from kingston jamaica
i'm a  smartphone technician and i really enjoy what i do
i'm married with only one child, a son he lives in england 
with my wife whose british by the way and so is my son
i've been repairing cell phones for about eight years now 
and like is said i love my job, ok so in my blog i'm going
to share with you a step by step tutorial on how to start
a carrier like mine in other words i'm going to teach you
how to repair cellphones from scratch, here's a list of 
what you'll be learning .

LESSON 01

Basic Information How Cellphone Works?Learning with Block Diagram on How basically Cell-phone works?

LESSON 02
Introduction To Basic Electronics

Ohm's Law

Series Circuit

Parallel Circuit

Identifying Electronics Components and Circuit Symbols

Resistors

Capacitors

Transistors

Diodes

Fuse

Coils & Inductors

Crystal Oscillators

RF & IF Amplifiers and Filters

EMI and ESD Filters

LESSON 03

Preparing the Proper Tools For Repairing

Opening Tools and Tweezers

Soldering and Desoldering Tools

Multi Tester

SMD Rework Stations

DC Power Supply

Cleaning Kits

Reballing Kits

Working Table Equipments

LESSON 04

Safety Procedures and Proper Handling of Tools and Test Equipments on Cellphone Repair

How To Use and Read a Multimeter Tester
Test and Check up Procedures on Basic Electronics Components
LESSON 05

Introduction to
Reading Cellphone's Schematic Diagrams

Identifying Component Symbols and Layout in Schematic Diagram

How to Identify Resistor's Symbols and Layout

How to Identify Capacitor's Symbols and Layout

How to Identify Transistor's Symbols and Layout

How to Identify Diodes Symbol sand Layout

How to Identify Coil Symbols and Layout

How to Identify Integrated Circuit Symbols and Layout

How to Identify DC to DC Voltage Drivers, Regulators and
Converters Symbols and Layout

How to Identify EMI-ESD Symbols and Layout

How to Identify RF Filter Symbols and Layout

How to Identify Battery Cell Symbols and Layout

How to Identify Power Switch ,Mouthpiece, Earpiece and Ringtones Speakers User Interface Symbols and Layout

How to Identify Clock Crystal Oscillator Symbols and Layout

How to Identify Fuse Symbol and Layout

How to Identify the Lines and Symbols on Schematic Diagram
LESSON 06
HOW TO FIND AND LOCATE COMPONENTS ON PC BOARD HOW TO SOLDER SMD COMPONENTS MANUALLY BY HAND 
HOW TO REBALL BGA CHIPS MANUALLY BY HAND
Identifying and Familiarization Of Common  Mobile Phones Components and Spare Parts
Liquid Crystal Display LCD Touch Screen Panels Microphones Micro Speakers Switches Charging Pins Antennas Batteries Battery Connectors USB connectors

Familiarization: Components and Parts on Nokia Mobile Phone Handsets
Familiarization: Components and Parts on Samsung Mobile Phone Handsets
Familiarization: Components and Parts on Sony Ericsson Mobile Phone Handsets
Familiarization: Components and Parts on Motorola Mobile Phone Handsets
Familiarization: Components and Parts on iPhone Mobile Phone Handsets
Familiarization: Components and Parts on Blackberry Mobile Phone Handsets
Familiarization: Components and Parts on HTC Mobile Phone Handsets 

Understanding Major Integrated Circuits (IC) on Mobile Phones
Power Management IC
Application Processor
Flash IC
RAM IC
Basic Hardware Handling Procedures
Proper Disassembling and Assembling Methods
How to Test Mobile phone Speaker,Buzzer or Ringer
How to Test Mobile phone Microphone or Mouthpiece
How to test Mobile Phone Chargers Voltage
How to Test Mobile Phone VibraMotor
How to check Mobile Phone Battery Voltage
How to test Power ON OFF Switch 

Hardware Troubleshooting Basics
How to Troubleshoot Not Charging Issues
How charging circuit works
No Charging Response
Charger Not Supported
Not Charging
How SIM Circuits works
Insert Sim Card Problem
Invalid Sim Card
How Keypad Circuits Works
How to Map and Trace keypads Lines
Understanding The LED light Circuits
Explanation on How Audio Circuits work
Mouthpiece
Earpiece
Buzzer
Ringer
Headset
Vibra motor
How LCD Display Circuit Works
Understanding How RF circuitworks

Basic Mobile Phones Hardware Repair Techniques

Basic on Software Handling
What is Flashing 
What is Unlocking

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