How to Diagnose Mobile Phone Problem – Diagnostic Codes

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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40 Responses

  1. sehgal says:

    sir i have videocon a15 its touch automaticaly select the options . what is a problem.

  2. uche emeka says:

    plz Mr Santosh i need your whatsapp contact so u can enlighten me on more solutions….i really need your help….

  3. Jyoti ranjan sahoo says:

    Dear sir,i am a user of BQ s 40.One day all of a sudden error messege “Unfortunatly,the process.com.process.acore.has stoped flashes,then differenr simillar messeges continiously appears.when I attempted to Factory reset/wipe data,it was not work.I attemted it several times. then I had tried to clean eMMC. It also not working .And still that probleme exists.Please mention the solution.android kitkat 4.4.2 verson.Now I am not able to Change my pattern lock also,

  4. satyam mohanty says:

    my samsung galaxy core 2 display is work properly.it”s sometime automatic operate, iam very irited, pls give your usuful opinion for reparing.

  5. emmanuel ben says:

    please sir. I am a young youth an i will like to be a phone repairing wizard in my area. I don’t no how i can communicating with sir. Please sir i do need to learn more. Thanks

  6. Mushrif says:

    Hello Sir,
    I have galaxy s4 GT-I9500. Airtel 4g sim is not working most of the time being said that once in a while it works and after sometime it will give the message no sim..Is there any way to correct this..jio sim is working fine in my phone..
    Thank you

  7. Eldhose baby says:

    Hi santhosh,

    My name is Eldhose. on regarding of my iphone 6. i heard a noise from inside of my phone. and i opened the phone and release the screen and put it back . but my touch is not working at the moment.

    thank you
    Eldhose

  8. mishyck says:

    i am one of the youth interested in phone repairing. I think this website will help me most to achieve what i wanted.

  9. Mary says:

    Hello sir. How can I use this codes? Is there a specific app I should download? And if yes I download it to the device I want to check or in any android device. Thank you in advance.

  10. Mark Flores says:

    Thank you ive learn a lot from you..my plan today is to go school for cellphone repair course.i accepting repairbut not all i repaired.very hard for me.i hope i can learn more and more soon in your website.thank you More Power and God bless

  11. Mohamed says:

    Thats Great , Thank you for YOUR hard effort

  12. Nirmal says:

    Hi bro. I have a UBISLATE TAB .Its touch screen is not working. Suggest me some idea

  13. Steven says:

    Very interesting information on phone repair. As a retired electronics technician I try to keep up with changes in electronics technology. Your site looks like what I want to learn more about, phone repair.

  14. Dibyaprusty says:

    Sir,
    My phone battery is draining very fast and charging very fast,,,and some times my phone automatically switch off and on many times…..plz suggest some thing….myphone model===intex cloud n12

    • Geoffrey says:

      Good article put together to assist those like me wishing to know more on phone repairs. What a kind gesture. Thanks and God bless you.

  15. Nwodo Chidi Paul says:

    I am a phone technician, there is this phone, Gicent T545, I tried to use rework to fix the simcard connector mistakely a lot component near it fell off. I cannot fix it because I don’t know the arrangement. I have been searching google to see the PCB Diagram (Gicent T545). Please help me!

  16. Tintong Borang says:

    am an unemployed youth and I do beleive that your tutorials will help unemployed youths to earn their livelihood through repairing works.Lots and lots of thanks Santosh Bhai.

  17. Nawaz says:

    I like to learn cell phones service.your articals tutorials are very usefull.we expect your online support.thank you

  18. Manish Yadav says:

    Sir
    I have a Lava IRIS 501 mobile. When i call to anyone or receive a call form my mobile ,the display of the mobile just off so icannot be able to do anything in my phone, but when the call just disconnected the display of the mobile works normally. Please help me

  19. irshad says:

    huawei diagnostic wich code number

  20. vishwas says:

    Mobile model-Karboon A101
    My prob is when mo off then it only switch on charging bye laptop or PC…when charge 1% then mo on…after that no charge by any other charger

  21. Umesh Band says:

    I have a lenovo p780. It recognises the sims but has no network on both the sims. An ‘x’ mark is displayed. I cannot use the phone, Can you help

    • Santosh Das says:

      Please try to insert another SIM or another Network and check. If the problem is still there then clean the SIM Slot with Alcohol and allow the Alcohol to evaporate. Insert the SIM again and check. Also see if there is Network problem in your area. If everything is OK and there is still no Network then there is Hardware problem with the Network IC. The IC Needs to be replaced at Authorized Service Center.

  22. Sonia says:

    Hi. I have no problem donating to you, but I would like to see some of these codes actually work first. How do I input them

  23. sanjay says:

    I have Samsung mobile duse 2
    Problame in sim 1 not working so m 2woring proper
    I have formet cell phone but sim 1 not working .sim 1hide plz some solution

    • Santosh Das says:

      Please go through the SIM Management Option and change the required settings.

      • Vijay Shinde says:

        Hi Santosh Ji,
        I am using Samsung Galaxy S4 LTE. its around 26 month old phone and has suddenly started showing me No Sim Card, Emergency Calls Error. I have tried changing Sim Card Slot but It dint work out. We are unable to find out exact reason of this error. how to do troubleshoot and find out the problem

  24. Bidyut Kumar says:

    My mobile that is a problems any time power on of

  25. abel says:

    TIA for ur free information keep going.

  26. E.Raghu says:

    I have useful

  27. ANIL says:

    Its amazingly detailed information on this website about repair of mobile phones. Thanks

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