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Hardware, repair and security

Mobile phone repair technician

Find and fix faults in smartphones: broken screens, charging problems, batteries, speakers, water damage and software issues.

This could suit you if

  • You have steady hands and good eyesight for small parts
  • You are patient with fine, careful work
  • You like helping people and talking to customers
See the learning pathRelated courses
A student wiring a breadboard circuit with jumper wires beside a box of electronic components

On this page

5
kinds of workplace
3
stages to 6 months
6
free ebooks

The work

What the work is

A mobile repair technician finds out why a phone is not working and fixes it. Some faults are in the hardware: a cracked screen, a loose charging port, a weak battery, a dead speaker or microphone, or water damage. Others are in the software: a phone stuck on the logo, wrong settings or a full memory. The technician opens the phone carefully, tests parts with a multimeter, replaces or solders them, and checks everything before handing it back.

Almost everyone uses a smartphone, so repair counters are found in every market. The work needs honesty and good customer handling as much as technical skill.

Where people do this work

  • Mobile repair shopsThe most common place to start, often as a helper learning from a senior technician.
  • Brand service centresAuthorised repairs that follow the brand’s procedures and use its parts.
  • Mobile and accessory storesA repair counter beside phone and accessory sales.
  • Refurbishing unitsTesting and repairing used phones before resale.
  • Your own counterMany technicians open a small repair counter after gaining experience.

A day at work

What a working day looks like

Every workplace is different, but a typical day goes something like this.

  1. Morning

    Record each phone received: customer name, model, IMEI, the fault described and the estimate agreed.

  2. Late morning

    Diagnose: check charging with a USB meter, test the battery, and inspect the board under a magnifier.

  3. Afternoon

    Replace a screen, change a charging port, or clean a water-damaged board, and reinstall software where needed.

  4. Evening

    Test every function (calls, camera, speaker, charging, touch) before handing back, and explain what was done.

Skills and tools

What you need to learn

The skills come first; the tools are how you use them. You do not need everything on day one.

Skills

  1. How a smartphone is built: board, battery, display, ports and antennas
  2. Opening and closing phones without damage
  3. Testing with a multimeter and a DC power supply
  4. Soldering and desoldering small parts, and using a hot-air station
  5. Replacing screens, batteries and charging ports
  6. Software: backups, resets and official update tools
  7. Honest customer handling: clear estimates and records

Repair tools

  • Precision screwdrivers, opening picks and spudgers
  • A digital multimeter
  • A soldering iron and a hot-air rework station
  • A magnifying lamp or microscope
  • A DC power supply, a USB tester and a battery tester
  • An ESD-safe mat and tweezers

Software and records

  • Official update and software tools from phone makers
  • A computer for backups and software work
  • A job register for every phone received

Work safely

  • Phone batteries can catch fire if punctured, bent or overheated: remove them slowly, never pierce them, and keep a metal box or sand tray nearby
  • Solder with ventilation and wash your hands afterwards
  • Never change a phone’s IMEI number: it is illegal
  • Do not unlock or repair a phone you suspect is stolen, and keep a record of every phone and its owner
  • Respect privacy: do not open photos, messages or apps on customers’ phones

Learning path

Your first six months, step by step

A realistic plan if you practise most days, at a course or at home. Go at your own pace: the order matters more than the speed.

  1. Step 1 · First month

    Know the phone

    • The parts of a smartphone and what each does
    • Open and close old phones safely, practising on scrap handsets
    • Multimeter use: continuity, voltage and resistance
    • Basic soldering on a practice board
  2. Step 2 · By 3 months

    Common repairs

    • Replace screens, batteries, charging ports and speakers on old phones
    • Diagnose charging faults with a USB meter
    • Back up and reset phones, and update software with official tools
    • Start a fault notebook with photos
  3. Step 3 · By 6 months

    Board-level basics

    • Hot-air work: removing and replacing small chips and connectors
    • Cleaning and repairing water-damaged phones
    • Reading basic phone diagrams to trace faults
    • Working beside a senior technician in a shop

Practice plan

Practise and build a portfolio

Employers and customers want to see what you can do. Build these as you learn, and keep them neat: they speak for you in an interview.

  1. 1

    A repair log with photos

    For each repair, the phone, the fault, your steps and before-and-after photos (never of a customer’s personal data).

  2. 2

    A practice board

    A scrap phone board where you practised soldering and replacing parts, to show your hand skill.

  3. 3

    Revived phones

    Old family phones you brought back to working order.

Getting started

Finding a first job, or starting on your own

Most people start with a junior job or helper role and learn on the job; some build their own small business step by step.

Finding your first job

  1. Visit repair shops and mobile stores in your market: most technicians start as helpers and learn at the bench
  2. Ask brand service centres whether they take trainees
  3. Carry your repair log and be ready for a hands-on test
  4. Register on the National Career Service portal
  5. Be patient: speed comes with practice

Starting on your own, safely

  • Start small, at a counter in an existing shop, and buy tools as you need them
  • Give a written estimate and job slip for every phone, and record the IMEI and the customer’s ID
  • Buy parts from reliable suppliers and tell customers whether a part is original or compatible
  • Check the local rules for shop registration and any licence you need

Stay safe

Never pay for a job

Fake job offers target people looking for their first job. A real employer never asks you for money.

Watch out for these in mobile repair technician work

  • People offering money to change IMEI numbers or to unlock phones that are not theirs: refuse, it is illegal
  • Costly "repairing kits with a guaranteed job" sold online

  • Never pay for a job

    A real employer does not ask for a registration fee, a security deposit, or money for a training kit, ID card or uniform before you join. If someone asks you to pay to get a job, it is a scam.

  • Be wary of easy-money messages

    Offers on WhatsApp or Telegram to earn by liking videos, writing reviews or doing "simple online tasks" are a common fraud. They pay a little at first, then ask you to deposit money for bigger tasks.

  • Check the employer is real

    Look for an office you can visit, an official email address and website, and people who have actually worked there. Search the company name with the word "fraud" before you go.

  • Guard your OTPs and documents

    Never share an OTP, bank PIN or password. Do not send scans of Aadhaar or PAN, or install a screen-sharing app, for anyone you have not checked.

  • Go to interviews safely

    Interviews should be in an office or a public place, in the daytime. Tell a family member where you are going, and leave if anything feels wrong.

  • If you are cheated, act fast

    Call the national cyber crime helpline 1930 straight away, report it at cybercrime.gov.in and tell your bank. The sooner you report, the better the chance of stopping the money.

1930

National cyber crime helplineCheated by a fake job or payment? Call 1930 straight away and report it at cybercrime.gov.in.

Interview tips

How to do well in the interview

  1. 1Expect a practical test: open a phone, find a fault and replace a part
  2. 2Talk through your diagnosis before reaching for the soldering iron
  3. 3Show that you handle batteries and heat safely
  4. 4Be honest about what you can and cannot do yet
  5. 5Show good manners with customers: shops depend on trust

Learn at the institute

Related courses at Gurukul Technicals Institute

These courses teach skills on this page. For the duration, fees and batch timings, ask the head office or your nearest member centre.

All Hardware & Networking coursesAsk which course suits you

Free ebooks

Free books to learn from

Free PDF ebooks for this line of work, to read on your phone or print.

All free ebooks

Questions about becoming a mobile repair technician

Still have a question?

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Can I learn mobile repairing after class 10?

Yes. It is a practical skill that does not depend on your stream. You need patience, steady hands and a lot of practice on old phones.

Which tools should I buy first?

A precision screwdriver set, opening tools, a multimeter, a soldering iron and an ESD-safe mat are a good start. Add a hot-air station and a DC power supply when you move on to board-level work.

Is it safe to work on phone batteries?

Lithium batteries can catch fire if they are punctured, bent or short-circuited. Replace a swollen or damaged battery rather than repairing it, remove batteries slowly, and keep a fire-safe container nearby.

Is unlocking or flashing phones legal?

Updating a phone with the maker’s official software, for its owner, is normal repair work. Changing a phone’s IMEI number is illegal in India, and you should never work on a phone you suspect is stolen.

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