Android operating system is a greatly customizable and friendly developer system. To conduct system diagnosis and test, it supports a large scale of hidden codes. Since there are many of these codes that support well on major Android devices, that includes Android with skin such as One UI, Color OS, Oxygen OS, MIUI, FunTouch OS and etc have their own set of secret codes. From this article, we will only list all Samsung secret codes whether you are using the older phone that comes with TouchWiz Nature or Grave UX, also the latest skin called One UI. By utilizing these secret diagnose codes, you can enter into Samsung engineering mode to test on the network, diagnose the hardware, and obtain key info about your Samsung smartphone or even Galaxy tab or devices. It is also important if you want to identify your Samsung phone’s IMEI 15 Digit number in order to check if it is an original Samsung phone or not.For Samsung Galaxy line S, Note, Galaxy A, J or M series phones and including Galaxy Tab, these secret codes provided below should work well on all of these Samsung decies. But, bear in mind that Samsung codes may differer a little from device to device, since some code may work on one system version, whereas others might not work.

For older Galaxy devices that are still using TouchWiz, you can utilize Samsung codes to unlock SIM, where in older days unlocking AT&T Galaxy S5 using a secret hack was possible. But one Samsung has noted such hacks, they immediately patch them with a new software update to disallow that.

List of Samsung Secret Codes

You are permissible to use the secret codes on your devices line of Galaxy S model, Galaxy Note, Galaxy A and M, Galaxy Tab , etc . Come into this category to check with a secret code about the serial number, IMEI, the manufacturing and activation date of your Samsung device.

List of Samsung Codes for Samsung One UI

Secret Code Functions:	Samsung Secret Code (One UI): Newer Samsung Phone
Check the IMEI number any mobile phone or tablet	*#06#
Test RGB (Red Blue Green), Receiver, Vibration, Touch sensitivity, Speakers, Camera Sensors, S-Pen, Audio loopback,  Software version, etc.	*#0*#
Change USB settings	*#0808#
Check Battery status ADC, RSSI reading, etc.	*#0228#
View GSM status information	*#0011#
Check Hardware Version	*#2222#
View Software Version such as PDA, CSC, MODEM, etc. Helps you check the BL, AP, CP, and CSC of your Samsung device	*#1234#
Check diagnostic configuration	*#9090#
Check Dump mode	*#9900#
Check Software and hardware information. This code also lets you check Samsung mobile manufacturing date	*#12580*369#
Check Audio loopback control	*#0283#
Update Camera firmware	*#34971539#
Check Network lock keycode	#7465625*638*#
Check TSP and TSK firmware update	*#2663#
Check Product code	*#272IMEI#*
Check buyer code, CSC (Country/Carrier Specific Product) Code	*#272*IMEI#
Check Audio loopback control	*#0283#
Check software version	*#1111#
View Camera firmware menu	*#34971539#
Enable call waiting	*43# [dial]
Turn off call waiting	#43#[dial]
Show status of call waiting	*#43#[dial]
Request own phone number (doesn’t work sometimes)	*135#[dial]
Change device PIN. Replace the old and new PINs of your Samsung device.	**04*[old Pin]*[new Pin]*[new Pin]#
Divert call to a given number. Replace “[number]” with a phone number	*#004*[number]#
Request the status for call diversion	*#004#
Deactivate call diversion	#004#
Erase call diversion	##004#

List of Secret Codes for Older Devices with TouchWiz UI

For older Samsung phone such as Galaxy S4 to S7, Note 4 to Note 7, Galaxy J and Galaxy C, and etc that runs on TouchWiz UI or on Android 6.0 or lower, you should use the following secret codes:

Secret Code Functions:	Samsung Secret Code for (TouchWiz) Older Samsung Phone
Test RGB (Red Blue Green), Receiver, Vibration, Touch sensitivity, Speakers, Camera Sensors, S-Pen, Audio loopback,  Software version, etc.	*#0*# / *#*#0*#
Show IMEI Number	*#06#
NAND Flash the serial number	*#03#
Touchscreen noise test (warning do not press power button)	*#80#
Wakelock OFF	*#251#
Wakelock ON	*#251#
WLAN Engineering Mode	*#526#
WLAN Engineering Mode	*#528#
RIL Dump Menu	*#745#
Debug Dump Menu	*#746#
Service Mode	*#0011#
Battery status	*#0228#
Audio packet loopback test	*#0283#
Audio/speaker-test (Melody Test Mode)	*#0289#
SysDump (System Dumps, logs, etc.)	*#0514#
Proximity Sensor test	*#0588#
Light Sensor Test Mode	*#0589#
Audio/speaker-test (same as *#0289#)	*#0673#
Real-time clock test	*#0782#
Vibration test	*#0842#
GPS Control Menu	*#1575#
RF Band Selection	*#2263#
Touchscreen FW and version	*#2663#
HW touchscreen test	*#2664#
RAM check (version number)	*#3264#
Proximity sensor test	*#7769#
Phone utility and USB driver and connectivity settings	*#7284#
Performs 12 types of function tests	*#7353#
Factory mode / Enable shutdown on long press	*#7594#
Service Mode (Read FTA hardware version)	*#8888#
System Dump Mode	*#9900#
Software versions (AP, CP, CSC, FTA SW)	*#9999#
Hardware version	*#2222#
View SW Version PDA, CSC, MODEM	*#1234#
Battery diagnostics	*#0228#
Service Mode	*#9090#
HSDPA/HSUPA Control Menu	*#301279#
GCF Configuration	*#4238378#
Enabling test mode for service activity as well showing the manufacturing date of Samsung devices	*#197328640# OR *#*#197328640#*#*
Bluetooth test	*#232331#
Bluetooth address	*#232337#
WLAN MAC address & PS mode	*#232338#
WLAN Engineering Mode test (TX & RX modes) (similar with code feature *#526*)	*#232339#
Opens OTA update menu	*#8736364#
Camera firmware standard (Front/Rear camera firmware)	*#7412365#
Personalization (lock status settings)	*#7465625#
Reset Total Call Time	*#22558463#
Main Version (AP, CP, CSC, RF cal, HW revision)	*#12580*369#
System and storage information, and Data usage statistics	*#3282*727336*#
Wipes Samsung phone completely	* 2767 *3855#
Resets your phone to the factory state and deletes only apps and app data. You don’t need to boot into the Samsung recovery mode to do that.	*#*#7780#*#*
Enables direct power off without showing Power Menu when you hold the Power button	*#*#7594#*#*
Displays Wi-Fi MAC address	*#*#232338#*#*
PDA, Phone, Hardware, RF Call Date (or manufacturing date) firmware info	*#*#4986*2650468#*#*
View the EPST menu	##778 [dial]

Either you want to identify if your Samsung phone is original or not, verify the manufacturing date of your devices, access Samsung engineering mode, network testing, SIM unlock, diagnose your devices and more. You can also assure that if these codes work on your Samsung devices, then you can be sure that it is an original Samsung phone.