All Secret Codes of Samsung Galaxy S4

Here we are providing almost all the possible secret codes of your favourite Samsung Galaxy S4 smartphone. These secret codes are supported on S4 variants like, Samsung I9500 Galaxy S4, Samsung I9190 Galaxy S4 mini, Samsung I9505 Galaxy S4 and Samsung Galaxy S4 zoom.

Before going through the secret codes, please see the below screenshot to get an idea how you can enter the secret codes to your Galaxy S4.

So just type the code to your normal dialling keypad, thats it the code will just execute.

1. Check Audio Loopback Control : *#0283#

2. Check Battery status ADC, RSSI reading : *#0228#

3. Secret code to Camera Firmware Update : *#34971539#

4. Check GSM status information : *#0011#

5. Check Insert Network Lock Keycode : #7465625*638*#

6. Check TSP / TSK firmware update : *#2663#

7. Check Hardware Version : *#2222#

8. Check IMEI number : *#06#

9. Secret code to lock the phone: #7465625*782*Code#

10. Check Diagnostic configuration : *#9090#

11. Check Dump mode : *#9900#

12. Check General Test Mode : *#0*#

13. . Check Insert Operator Lock Keycode : #7465625*77*#

14. Check Quick Test Menu : *#7353#

15. Check Remap Shutdown to End Call TSK : *#7594#

16. Check Software and hardware info : *#12580*369#

17. Check View SW Version PDA, CSC, MODEM : *#1234#

18. Check Product code : *#272IMEI#*

19. Check Buyer Code, S3 CSC Code : *#272*IMEI#

20. To Change USB Settings: *#0808#

If any of the codes are not working or you have any other useful codes with you which are not published here, please feel free to post it in the comment section below so that everybody will benefit from it.

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Comments

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#39 +3 Thomas 2015-07-20 17:13

Quoting Mahesh Kumar lohano:

My Samsung S4 i9500 is working fine. The problem is when i turn on loudspeaker, the next person do not hear my voice. If i turn off speaker then next person can hear me.
I checked mic on recorder, it is working fine. I don't use bluetooth handsfree. Phone is not rooted
I have tried following solutions
I have turned off noise reduction feature and "google okay".

Please tell me solution

Please take a backup and factory reset your phone. If it's still not working most probably it could be a hardware issue.

#38 +1 Mahesh Kumar lohano 2015-07-18 08:05

My Samsung S4 i9500 is working fine. The problem is when i turn on loudspeaker, the next person do not hear my voice. If i turn off speaker then next person can hear me.
I checked mic on recorder, it is working fine. I don't use bluetooth handsfree. Phone is not rooted
I have tried following solutions
I have turned off noise reduction feature and "google okay".

Please tell me solution

#37 +2 Thomass 2015-05-19 16:06

Quoting Rakesh:

Hi there I am from INDIA
I was using 4.4.4 kitkat on my samsung s4 i9500,recently flashed to 4.4.2,but unfortunately i cant make call.it is showing that NOT REGISTERED ON NETWORK,and also imei is null.pls pls pls help me.pls pls amd sorry for my bad English

Please read this then you will understand the reason; http://www.samsungsfour.com/tutorials/how-to-resolve-not-registered-on-network-error-on-galaxy-smartphone.html

#36 +1 Rakesh 2015-05-18 20:43

Hi there I am from INDIA
I was using 4.4.4 kitkat on my samsung s4 i9500,recently flashed to 4.4.2,but unfortunately i cant make call.it is showing that NOT REGISTERED ON NETWORK,and also imei is null.pls pls pls help me.pls pls amd sorry for my bad English

#35 +4 Thomass 2015-04-28 15:42

Quoting yoni:

My phone won't read my sim card. I got a new sim and it still won't work.

Are you getting "Not registered on the network error, if that so it is because of the wrong firmware. To resolve it find the correct firmware and reinstall it. Try sammobile for the firmware.

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