Tips and Tricks

Useful Android Secret Codes You Must Know


Do you have an Android phone or Tablet? Do you want to Are you having problems with your device? Is the touchscreen of your device less sensitive? Do you want to format/reset your device because of virus, application error or bugs?

Here are some useful Android Secret Codes you must know:



This code can be used to get some interesting information about your phone and battery. It shows following 4 menus on screen:
*. Phone information
*. Battery information
*. Battery history
*. Usage statistics



Think before you dial this code. This code is used for factory format. It’ll remove all files and settings including the internal memory storage. It’ll also reinstall the phone firmware.
NOTE: Once you dial this code, there is no way to cancel the operation unless you remove the battery from the phone. So think twice before giving this code.

––> Phone Camera Update:


This code is used to get information about phone camera. It shows following 4 menus:
*. Update camera firmware in image (Don’t try this option)
*. Update camera firmware in SD card
*. Get camera firmware version
*. Get firmware update count
WARNING: Never use the first option otherwise your phone camera will stop working and you’ll need to take your phone to service center to reinstall camera firmware.

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––> End Call/Power Button


This one is my favorite one. This code can be used to change the “End Call/Power Button” action in your phone. Be default, if you long press the button, it shows a screen asking you to select any option from Silent mode, AirPlane mode and Power off.
You can change this action using this code. You can enable direct power off on this button so you don’t need to waste your time in selecting the option.

––> Quick Backup to all your media files


This code opens a File copy screen where you can backup your media files e.g. Images, Sound, Video and Voice memo.

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––> Test Service Mode


This code can be used to enter into Service mode. You can run various tests and change settings in the service mode.

Below are some important Android USSD codes regarding Wireless Lan Tests, Softwares and Hardwares version:

*#*#528#*#* ––> Wireless Lan Tests

*#*#232338#*#* ––> Displays Wi-Fi Mac-address

*#*#1472365#*#* ––> For a quick GPS test

**#*#1575#*#* ––> A Different type GPS test

*#*#0283#*#* ––> Packet Loop back test

*#*#0*#*#* ––> LCD display test

*#*#0673#*#* OR *#*#0289#*#* ––> Audio test

*#*#0842#*#* ––> Vibration and Backlight test

*#*#2663#*#* ––> Displays touch-screen version

*#*#2664#*#* ––> Touch-Screen test

*#*#0588#*#* ––> Proximity Sensor test

*#*#3264#*#* ––> RAM Version

*#*#232331#*#* ––> Bluetooth test

*#*#7262626#*#* ––> Field test

*#*#232337#*#* ––> Displays bluetooth
device address

*#*#8255#*#* ––> For Google Talk service monitoring

*#*#4986*2650468#*#* ––> PDA, Phone, Hardware, RF Call Date firmware info

*#*#1234#*#* ––> PDA and Phone firmware info

*#*#1111#*#* ––> FTA Software version

*#*#2222#*#* ––> FTA Hardware version

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*#*#44336#*#* ––> Displays Build time and change list number

*#06# ––> Displays IMEI number

*#*#8351#*#* ––> Enables voice dialling logging mode

*#*#8350#*#* ––> Disables voice dialling logging mode

**05***# ––> Execute from Emergency dial screen to unlock PUK code (SAMSUNG ONLY)

*#*#7780#*#* ––> Wipe data/factory data reset
It’ll remove the following things:
– Google account settings stored
in your phone
– System and application data and settings
– Downloaded applications

It’ll NOT remove:
– Current system
software and bundled application
– SD card files e.g. photos, music files, etc.
NOTE: Once you dial this code, you
get a prompt screen asking you to click on “Reset phone” button. So you get a chance to cancel your operation.

With the knowledge of the above codes, you should be able to fix some fault on your phone by yourself. Dont rush to a phone engineer, visit Android Nigeria for solutions.
NOTE: Android Nigeria is not responsible for the misuse of the above codes.

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Ikechukwu MaxkDAVE

Ikechukwu Onu is a Certified Full-stack Digital Marketer and Digital Media Pundit with a profound interest in all things tech. When he is not working, you’ll find him at an outreach, hang out with friends, or streaming a series/movies.


    1. i have problem with my tecno m9 i guess virus some like that and downloaded anti virus still having same problem i want hard reset and tried this code *#*#7780#*#* or *#7780# it didn’t work for me if you can help i appreciate

  1. Pls i need help, my tecno P9 phone didn’t ve app in assistant app so i cant make use of bible, dictionary etc

  2. Hi, My Tecno M3 has a problem, when i try to dial credit, it replies “Connection problem or invalid MMI code” may i please know the problem, i can not call any more, when i dial the number, it prompts me ” call ended”

  3. Gudday,pls i love this but there is a problem i’m having wit my phone,each time i transfer picture from file manager to photo,d photo will not display in d gallery,pls what is the problem so that i can fix it.

  4. I tried this code on my Tecno P9 tab- *#*#232338#*#* ––> Displays Wi-Fi Mac-address and thi *#*#197328640#*#*. Nothing happened.

    1. Hi williams, this error is found on mostly dual sim smartphones and occurs because of issues with MTN (your service provider) and sim card authentication.
      Restarting your phone several times can stop it temporarily. Basically, turn your phone on, navigate to network settings. Then hold the power and the home button together until your phone turns off. then Turn it back on

  5. Pls i use a Tecno L3 each time i browse with ucbrowser the experience is terrible, after three pages the browsing stops what can i do, i was advised to flash the fone. my fone browser itself doesnt browse anymore, i stay at r/okoro in PH tell me the closest place i can get assistance

  6. Pls help, my techno n9 phantom pad is giving me insufficient internal memory space. I could not install apps from play store. It brings out disc space running out, whereas I have about 7.35G phone memory space. Pls help me out.

    1. Move all the apps you downloaded from play store to your memory card. The quantity of diskspace allocated for apps section is full due to your downloads from play store.

    1. To switch ON your 3G Network, click on settings > Mobile Network > 3G Service > Network Mode when you click Network mode you will see WCDMA/GSM (automode), WCDMA (3G only), GSM (2G). Select WCDMA for 3G.

      1. I am having the problem on my new Tenco P5 too.The Network mode is gray and it doesnt respond when you select it. Please help

  7. please my gowin M5 is writing privacy protection password and i have tried flashing it several times and also a hand flash yet the problem still persist what do i do

  8. pls help o… i root my Gowin f7. after rooting it they send me a msg saying your android system has been modified and reburned bla.. bla… bla…. pls…. what shall i do to solve this problem.

  9. I use techno L7. I discovered lately that i cant receive phone call anymore. whenever i try to do such,”unfortunately your dailer has stopped” message pops up. can u pls put me through? thank u.

    1. Go to your phone settings, scroll down to “Apps” and select it. Swipe right twice to reach the “All” section. Search for the “phone” application and select it. Select “Clear Cache and clear Data”
      If it still persist after this, i recommend you backup your important files and factory reset your phone.

  10. please can any one help me turn on my GPS service on my l3 techno ……I have try several way but is still the same please help I will be glad

  11. pls my mtn sm@rt mini s620 is showing factory testing mode immediately i on the phone what can i do pls

  12. please help ooh my friend deleted my p5 follow come Gallery on my phone and when I want to install it back it keep on saying App not Install
    what should I do please help

  13. Pls I need help my Gowin G500 android is corrupt and I need Userdata to restore it back, pls anybody with Gowin G500 can back up is user data in Sdcard and pls send the file to this site pls I will appreciate

  14. pls I need help my Gowin G500 is corrupt and I need use data to restore it, pls anybody with Gowin mobile should pls backup the phone by holding the volume up and power at the same time then scroll down to backup file, pls after doing that then send the file to this site so I can use it to restore my phone ,thanks I will appreciate

  15. Pls I need this file to flash my Gowin Model C6 ( MT6572__android__android__android__4.4.2__ALPS.KK 1.MP7.V1) flash filee

  16. Pls my opsson 507 is indicating “unfortunatel,andriod services has stopped” I have hard resetted it several times but it refuse to be normal………what could I possiblly do?

  17. Pls, I bought a techno camon fone about six months ago, there was an emergency need for me to travel out of the country. On getting back I could not remember the pass code use. Pls, how can I open the fone without formatting it so I don’t lose any document In it. Help needed urgently.

    1. Hello funmi, its best you take the device to Carl Care office since you are still under the warranty period. They will attend to your needs for free.

  18. Pls my gionee m5 mini Follow-come torch has refused to go off, unless i switch it Off. But as soon as I put it back on, it comes on again. What van i do?

  19. pls am using an android phone called fotola before all the sim slot where working, it sim one normal sim and sim two micro sim, but now when I insert sim card in the sim one the phone does not on until I remove it. pls what the problem what shud I do

    1. Hello,
      Sorry to hear that. From what you described, your device might be having a hardware problem. I recommend taking the device to a qualified repair shop such as a Slot Mobile center. I am not familiar with your device so I cannot offer much advice.

  20. please people i need help urgently
    i bought a tecno k7 (2gb RAM)on saturday 28/4/2018 from a reputable outlet(#38,500.00) but two days later i checked its imei num via n it says my phone is tecno spark Cm i went ahead to check using antutu benchmark app it displays 1000mAh for battery capacity n displays unknown for phoneboard against the info it displays on my itel prime iv which were all correct .three days later im unable to borws internet it keeps displays ” you are offline” no acess to chrome, operamini, google search, nor ucbrowser only whatsapp is accessible not even facebook i took it to carlcare n was advice to factory reset the phone which i did n everything seems normal for a day n half n then it return to its normall you are offline .this text is typed using tecno g9 via the tecno k7 wifi but the phone itself wount let acess to any search engine or app please help…..

    1. Hey,
      Sorry for the tardy response. To your issue, from what you have described this is a serious software issue. the authenticity of the device would have been in question if you did not mention that it was taken to a carl care center – carl care normally checks the authenticity of a device before performing any repairs. That said, I will recommend that you take the device to the store where it purchased and try changing it for another. If this effort fails, then repairing the device at whatever cost is your only option. Good luck.

  21. please my infinix zero 4 is writing storage full. when i have 32g sd card and 32gb phone storage. have delected all my app and files and it is still showing the same thing

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