Android phones like Samsung have a number of secret codes that allow users to enter specific configurations. Most of these are basic configurations that let users troubleshoot and fix various errors. And the most common configuration is engineering mode. Every phone has an engineering mode, although the name for this mode may vary. On Samsung phones, it is called Test Mode. Read on to find out how to enter Engineering Mode in Samsung along with other Samsung Secret Codes.
Secret codes can be useful in many cases and usually, it is used by engineers and testers to repair or test phones. But a general user should also be aware of these Samsung secret codes because you don’t know when they will come in handy. You can also calibrate your device settings using these secret codes.
What are Secret Codes on Phones?
Secret Codes are a set of codes that users can enter in a dialer to open specific settings like Engineer Mode. These settings or configurations may not be available in settings and so also referred to hidden modes. Each OEM has different secret codes for opening hidden modes and configurations. These are also called Dialer codes as we use Dialer for entering these codes.
Not only smartphones, but feature phones also have secret codes and you may remember a common code *#0000# which you may have used to trick your friends. But obviously, secret codes on smartphones like Samsung are more than what we can access on feature phones.
Samsung phones are popular in all ranges and in most countries. And all Samsung phones also have a specific set of secret codes that you will know here. With Secret Codes you can test functionalities like display, volume, touch, network, and more. Yes, these are called engineering mode but on Samsung, you will find it as test mode. Both functions are the same and are used for troubleshooting. Now if you have a Samsung phone and want to learn these secret codes, check out the list below.
One thing to note before we move to the list is the Secret Code varies by OEM, devices, Android versions, and even regions. So, it is possible that some of the secret codes may not work for you. You can use these secret codes on Samsung phones such as Galaxy S21, S21 Ultra, S20, S20 Ultra, Note 20, Note 10, S10, Z Fold 3, Z Flip 3, and more.
Samsung Secret Codes List
It’s good to know the codes for accessing hidden modes, but you should avoid changing values, settings on a configuration you are not familiar with. If you are not sure about any particular code then try looking for its information before modifying it. Now let’s see a big list of Samsung secret codes.
| Secret Code | Use |
|---|---|
| *#9900# | To access System Dump (manage dumps) |
| *#0808# | USB Settings like MTP, PTP, and more |
| *#2663# | Firmware Details with the option to update firmware |
| *#1234# | Model number and firmware versions |
| *#0*# | Test Mode to troubleshoot Display, touch, camera, mic, etc. |
| *#06# | Check IMEI Number |
| *#0228# | Complete Battery Details |
| #*2562# | To restart phone |
| *#0011# | To view GSM information |
| *#12580*369# | Hardware Version and Software Version |
| *#*#4636#*#* | It shows Device information such as display, battery, etc. |
| *#*#7780#*#* | To reset your phone to factory state (Only Deletes app and their data) |
| *2767*3855# | To reset your phone completely |
| *#*#34971539#*#* | Camera Information |
| *#*#7594#*#* | Change Power button controls |
| *#*#273283*255*663282*#*#* | A quick backup to all your media files |
| *#*#197328640#*#* | To enable test mode |
| *#*#232339#*#* (OR *#*#526#*#*) | Wireless Lan Test |
| *#*#232338#*#* | To check Mac Address |
| *#*#1472365#*#* | GPS Testing |
| *#*#1575#*#* | Another method to test GPS |
| *#*#0283#*#* | Audio Loopback test |
| *#*#0*#*#* | Display Test |
| *#*#0*#*#* (OR *#*#0289#*#*) | Audio Test |
| *#*#0842#*#* | Vibration and Backlight Test |
| *#*#2663#*#* | Display touch version |
| *#*#2664#*#* | To test the touch screen |
| *#*#0588#*#* | Proximity Sensor Test |
| *#*#3264#*#* | RAM Version |
| *#*#232331#*#* | Test Bluetooth function |
| *#*#7262626#*#* | Field Test |
| *#*#232337#*# | Bluetooth device address |
| *#*#8255#*#* | Google Talk service monitoring |
| *#*#4986*2650468#*#* | Firmware Information (Hardware, PDA, RF Call) |
| *#*#1111#*#* | FTA Software Version |
| *#*#2222#*#* | FTA Hardware Version |
| *#*#44336#*#* | Displays Build time and change list number |
| *#*#8351#*#* | Enable voice dialing logging mode |
| *#*#8350#*#* | Disable voice dialing logging mode |
| #7263867# | On and Off RAM Dump |
| *#34971539# | To update device camera firmware |
| *#004*Number# | To divert calls to the Number (Enter your number in place of Number test) |
| *#004# | To check the status of call diversion |
| #004# | To deactivate call diversion |
| ##004# | Delete call diversion |
| ##778 (Call) | To access EPST Menu |
In case if the secret codes are not working then you can try changing the Dialer app. It will solve problems for some Samsung secret codes, but not for all. Also, remember some secret codes let you use services based on region.
So these are some useful secret codes for Samsung phones. Which is your most frequently used secret code from the list? Also, let us know if we miss any useful secret code that should be on the list.
Samsung Guide:
- Tips to Increase Battery Life on Samsung Phones
- How to Fix Missing OEM Unlock in Developer Options on Samsung Phones
