1. Understanding & Repairing Mobile Hardware

At some point or the other we all have sought to learn about our phones, but have never managed to get round to actually learn about t...

At some point or the other we all have sought to learn about our phones, but have never managed to get round to actually learn about them. In this blog, we are trying to make the learning process as interesting as possible. Here, we will try to post as much resources on mobile hardware and software as possible.

Today we are starting a set of tutorials on understanding & repairing mobile Hardware.

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·  Mobile Devices Hardware (In Further Text "HW") Is Not So Familiar To Understand For Many Users

·  Lot Of Smartphone Users (Specially Developers) Have Basics Knowledge About How Mobile Device HW Works And Communicate With Software

·  In This Thread We Will Try To Explain You Better How Mobile HW Works - From First Cell phones To Newest Smart phones (Basics Are Almost Same)

Every Mobile Phone, Gsm Modem Or Device With A Built-In Phone / Modem Has A Unique 15 Digit Imei Number. Based On This Number, You Can Check Some Information About The Device, Eg Brand Or Model.

CLICK ON THIS LINE TO CHECK YOUR PHONE'S IMEI LINK

What you will learn in this set of tutorials:

PART 01

(INTRODUCTION)

Basic Information How Cellphone Works?

Learning With Block Diagram On How Basically Cell-Phone Works?

PART 02

(BASIC ELECTRONICS)

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


PART 03

(REQUISITE TOOLS)

Preparing The Proper  Tools For Repairing

Opening Tools And Tweezers

Soldering And De-soldering Tools

Muti  Tester

Smd Rework Stations

Dc Power Supply

Cleaning Kits

Reballing Kits

Working Table Equipments


PART 04

(PROCEDURES & HANDLING)

Safety Procedures And  Proper Handling Of Tools And Test Equipments On Cell phone Repair

How To Use And Read A Multimeter Tester

Test And Check Up  Procedures ON Basic Electronics  Components


PART 05

(LAYOUTS, SYMBOLS & SCHEMATICS)

Introduction To Reading  Cell phone’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 Symbols And 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


PART 06

(HOW-TOs & FAMILIARIZATIONS)

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's Touch Screen Panels Microphones Micro Speakers

Switches Charging Pins Antenna's 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

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


PART 07

(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 Charger Voltage

How To Test  Mobile Phone Vibra Motor

How To Check Mobile Phone Battery Voltage

How To Test Power On Off Switch


PART 08

(Hardware Troubleshooting Basics)

How To Troubleshoot Not Charging Issues :

How Charging Circuit Works

No Charging Response

Charger Not Supported

Not Charging

How Sim Circuits Work

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 Circuit Work

Credits:
cellphonerepairtutorials.blogspot.com