Mobile Phone Fault Finding for Mobile Cell Phone Repairing

Santosh Das

Santosh Das is an Engineer, Blogger, Young Entrepreneur and Founder of this Mobile Phone Repairing Website. Santosh possesses vast experience in the field of electronics, telecommunication, Soldering, SMT, ESD Safety, and electronics manufacturing tools, equipment and consumables. Santosh left his job in 2014 and started his own Private Limited Company that deals and supplies PCB Assembly and Rework Tools, Equipment and Consumables. Keep visiting for daily dose of Tips and Tutorials.

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52 Responses

  1. Maico says:

    Hello sir pls I want yo ask a solution for dead phone what are the solution to it sir

  2. Ranjit says:

    Sir I a mi note 5a prime blank display I change LCD but it’s same can I jumper display filter ic

  3. richard says:

    Hello sir i have a galaxy s2 whenever i received a call the person cant hear i had the microphone replace however the problem still not fix. The ringtones is ok, playing videos the sound is ok its just that when durimg a phone call the person cant hear me on the other side. Could it be a board issue or software problem

  4. Mercy Ezekiel says:

    Hello sir.. Please am working on Tecno t349 The problem is the power solution, and i have tried my best but I don’t know what to do again.please help.

  5. motale says:

    sir its a pleasure reading through your work. sir how can train some one one mobile phone repires. im very intrested. u are my mentor

  6. owoso oluwaseyi says:

    Hello, mr Santosh Das please i need knowledge on how to repair phone that is charging but dos not retain charges. And also how to repair dead phones, and how to troubleshoot different parts of phone

  7. siraj says:

    the phone can be in download mode for hours but cant boot

  8. siraj says:

    also unlocked bootloader for the problem to resolve . for fastboot commands.

  9. siraj says:

    i have Huawei ALE-L21 which has restart problem. flashing firmware ok, goto recovery ok, but cant boot. the restart is not at same place sometime at begining of logo sometimes after logo.

  10. Sumit says:

    Sir Mera name sumit hai mere pas lyf Ka fon hai jo ki on krne per logo ane ke, 30second k Ander band ho jata h iska koi solution btao plz.

  11. punya says:

    Sir how to know fluently repair

  12. Richard says:

    Hello sir am one of your grate’s fan on pcb.? I bought a lg g4 on amazon unlocked and when i put my chip in it it shows the contact but cant connect to the network i try to set the apn setting but still no network i call tmobile and the say the imei is ok and they see no problem please hell

  13. Saddam says:

    Pls Sir send one mobile solutions book send my maill id

  14. pee says:

    Thanks for this platform

  15. Sunil Kumar says:


  16. lucy zimba says:

    Am LUCY , my child puts inote phone in her mouth and after few minutes it it stop responding to touch but it displays everything , for example , if someone call lam able to see that someone is calling but l can not be able to pic it. so whats wrong with the phone and how can l solve such problem

  17. Amadou says:

    Hello sir I want to learn about phone flashing and unlocking. What do i need.

  18. Md Wasim Abbas says:

    hello sir i am md wasim abbas and i want to learn mobile repairing please sir help me with some advise.

  19. Prince says:

    De ar Santosh, am preparing a work bench for mobile phones repair. Is there any equipment for detecting faults on mobil phone and other electronics?
    Thanks in advance

    • Santosh Das says:

      You must have following on your Work Bench:
      1) ESD Mat with Proper Grounding.
      2) ESD Wrist Strap to wear on your Wrist.
      3) A Good Soldering Station or Iron (ESD-Safe)
      4) A Good Hot Air Blower (ESD-Safe)
      5) Digital Multimeter, DC Power Supply, Set of Opening Tools, Set of Screwdrivers, Set of Tweezers.
      6) Good quality of Solder Wire and Paste, Solder Flux, IPA
      7) Laptop and Software Boxes.

  20. Mclean says:

    Please I have Samsung galaxy blaze and I have problem with the power switch.I think I have lost the positive part and I scratch the board till I met the point but its soo close to the negative so when I solde it the it join together making the the phone on direct when battery insert please can you help me with the power way on the board ?

  21. patrick says:

    My phone isn’t detecting sd card give me a solution.

  22. Nirmal says:

    I have a UBISLATE TAB . Its touch is not working. Tell me some tips

  23. Hashmat says:

    Sir my mic a120 hang problem
    tell me any way plz

  24. Charles hill says:

    I need phone repairing book or pdf

  25. sp says:

    Very very nice

  26. Ismail says:

    Samsung sgh-e250 this is problem that when switch on light come on display suddenly power off please help me

  27. dilip choudhary says:

    my karbonn a10 charging show but battery nut charging i changes charging socket plz given solution

  28. tim says:

    This site is full of info. Thanks for your effort.

  29. k t nishchith says:

    I have karbonn A15, it is switched off 3 days back. but it is not powering on/ can not charging fully dead. I dont know? Please give me solution

  30. IMANI ALPHONSE says:

    Thanks a lot i would like to add double line phones how to repair it

  31. iftikhar ahmed says:

    this is a really good side to learn about mobile phone thanks to the this site team

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