How to access the Galaxy S3 secret service menu
The hidden features of the Galaxy S3 but this time, we're sharing a built-in service menu that lets you test everything from your S3's pixels to your sensors and touch responsiveness. If you're the kind of nerd who likes to get under the hood of your smartphone, this is the menu for you.
So, how do you access the service menu on a Galaxy S3? The diagnostic tool is primarily meant for service technicians, so it's easily available but not widely known about. Just go to your dialer and enter the following code to bring up the diagnostic tool: *#0*#
This will bring up the above service menu screen, with options ranging from color floods (so you can easily isolate dead pixels on-screen), to speaker performance, LEDs, cameras and vibration. Some of it is not exactly going to be useful on a daily basis, but for a one-off novelty it's kinda cool to see (and it's a nice little prank to play on a friend's phone too). Plus, if anything on that list starts causing you problems, you know exactly where to go to test it for yourself before shipping your S3 off for repair. Here's some of the tests in action.
Check out our list of secret Android codes (there's a link at the bottom for Samsung-specific codes too).
If you have root access and want to delve a little deeper into the internal settings of your Galaxy S3 you can also try out a cool little app called Note 2 Hidden Settings which simply places a menu skin over some of the other internal settings to be found in your Samsung device. It was made for the Note 2 but it works fine on other devices like the Galaxy S3 too.
Have you ever tried to repair your smartphone problems yourself? Did you know about service menus and Android codes before, such as on the Galaxy S3?
Thanks, good info
none of these answers explain step by step HOW TO PUT A SAMSUNG J3 IN SERVICE MODE TO ENTER THE SECRET/HIDDEN CODES EXCEPT ENTER IN PHONE ,HIT GREEN BUTTON AND IT STARTS UP OR WAIT,,WELL NO THERE IT GOES STRAIGHT TO RECORDED VERIZON PRE-RECORDED MESSAGE I MISDIALED,ALL FACT ANSWERS AND NO DETAIL BY DETAIL STEP BY STEP TO BEGIN TO ACCESS J3 SERVICE MODE TO THEN ENTER THE CODE TO GET A ROLLING,SEEMS TO BE MORE ADVANCED CHATTER TO SOME NEWBIE HOW TO ACCESS /ENTER INTO SERVICE-DIAGNOSTIC MODE FOR DUMMIES "BEING A BEGINNER TO BECOME A ADVANCER YOU ARE ALL READY, SOME LEARN STEP BY STEP VS OTHER BY FACTS<BECAUSE THEY WERE A STEP BY STEP BEFORE A FACT..VERIZON MUST HAVE IT BLOCKED OUT SO WE CANT FUCK WITH IT.DO WE NEED TO UNLOCK ARE SIM CARD 1ST BEFORE ATTEMPTING,I SEEN OTHER POSTS ON ANOTHER SITE,AN ENTER ARE PUK CODE,COMES WITH SIM CARD OR HAVE TO CALL PROVIDER TO GET IT,NO ONE ELSE WILL HAVE
This doesn't work for me in 2018. I have SM-G730V and it tried to dial an actual phone number. Why doesn't this work in 2018?
I already knew several things about the "behind the scene " type of thing on my S3, and I haven't tried this nor the codes yet, but can't wait to.
I have the sch-s968c s3 and that code isn't working. any idea why not?
The Service Mode one, not diagnosis tests (*#0*#) like shown above, can be accessed by dialing: *#197328640# and wait. ( on galaxy S3 )
I cannot get that code to work on my s3. is this available for all carriers or do some have it disabled. once I enter *#0*#, do I have to push anything else or wait for a minute.
after you enter *#0*# press the green phone icon and it should launch right away - mine did
The Service Mode one, not diagnosis tests (*#0*#) like shown above, can be accessed by dialing: *#197328640# and wait. ( on galaxy S3 )
The Service Mode one, not diagnosis tests (*#0*#) like shown above, can be accessed by dialing: *#197328640# and wait. ( on galaxy S3 )
Hey you make no sense...
The service mode one, not diagnosis test.
Wtf does that even mean.
Btw *#197328640# didn't do a Damn thing...
does it not work with custom rom?
Same code for note 3