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Thread: Free Cell phone Repair Tutorial for Beginners

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    Thumbs up Free Cell phone Repair Tutorial for Beginners

    Here's a best gsm links for all new learners in GSM industry, Learn the
    basic here like me. I learned here from the start. I'm just a mobile
    phone sales lady a year ago but now rock fixing mobile phones.

    All lessons herein were all simplified and a few
    general technical terms being reduced to make easy learning and
    understanding, Images and Pictures were also gathered and choose
    appropriately to support every aspects of learning.



    These tutorials covers the following step by step lessons:


    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


    Muti 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 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
    Convertes 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



    ......::: SUNIL GUPTA :::.....

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    Default Re: Free Cell phone Repair Tutorial for Beginners

    How to Identify the Lines and Symbols on Schematic Diagram
    LESSON 06

    How to Find and Locate Components on PC BoardHow 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


    Familarization: Components and Parts on Nokia Mobile Phone Handsets
    Familarization: Components and Parts on Samsung Mobile Phone Handsets
    Familarization: Components and Parts on Sony Ericsson Mobile Phone Handsets
    Familarization: Components and Parts on Motorola Mobile Phone Handsets
    Familarization: Components and Parts on iPhone Mobile Phone Handsets
    Familarization: Components and Parts on Blackberry Mobile Phone Handsets
    Familarization: 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 Charger Voltage
    How to Test Mobile Phone Vibra Motor
    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

    Basic Mobile Phones Hardware Repair Techniques

    Basic on Software Handling
    What is Flashing
    What is Unlocking



    ......::: SUNIL GUPTA :::.....

  3. #3
    Benjamins Fredrick Guest

    Default Re: Free Cell phone Repair Tutorial for Beginners

    thanks and good post

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    Default Re: Free Cell phone Repair Tutorial for Beginners

    Many thanks for the post. I'm hoping these tutorials will help in the future.

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    Default Re: Free Cell phone Repair Tutorial for Beginners

    good post..........nice ..................

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    Default Re: Free Cell phone Repair Tutorial for Beginners

    Seems a very good post

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    Default Re: Free Cell phone Repair Tutorial for Beginners

    just thanks, great job for sharing about cellular phone knowledge.

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    Default Re: Free Cell phone Repair Tutorial for Beginners

    thanks so lot. seem like a very good post

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    Default Re: Free Cell phone Repair Tutorial for Beginners

    thank you for your post its it help me.... thanks a lot...

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    Default Cell phone repair training tutorials for beginners

    Please post more cell phone repair training tutorials for beginners. Post them all!

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