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How to SIM unlock Samsung Galaxy S4 i9505 and i9500 for free

Samsung Galaxy S4 is the most powerful Android based smartphone released on the market, the device being already (it has been released for the first time last month, in April) one of the most appreciated handset by worldwide users. The S4 comes with high end specs and features, so as expected, its price tag is on par with its performances, which means that not everyone will afford to buy the device, at least not the SIM free version. So, most of the customers will decide to go for the network locked SGS4; if that’s your case too, don’t worry, as during the following lines we will be checking on how to easily and permanent SIM unlock the Galaxy S4 and all for free.

Well, this tutorial will work for the Samsung Galaxy S4 model numbers i9505 and i9500 so before going any further make sure that you own one of the mentioned versions of the smartphone. And yes, by applying our guide you will be able to safely unlock the SIM locked Galaxy S4 for free and without dealing with complex tasks or with unreliable tools, or codes. All you will have to do is to apply some things on your phone by using its menu and some other options (don’t worry as you have it all explained below).

Before starting in explaining how to SIM unlock the Galaxy S4 i9505 and i9500 you should first know that this operation will not affect the safety of your handset in any way or matter. The warranty will not get void, you don’t have to previously root your handset and you don’t have to install a dedicated app on your phone.

Anyway, even though this will be an easy task to complete I do recommend you to follow all my directions; don’t perform things by yourselves as if you somehow get stuck, or if you mess things up, then I will not be able to help you anymore. You have all the details needed explained during the present step by step guide, so follow the same.

In order to conclude and for being able to start the actual guide, here is what you need to know: by using this tutorial you will learn how to SIM unlock the Galaxy S4 i9505 and i9500 for free. The steps from below has been tested only on the mentioned versions of the S4, so don’t use the same if you want to SIM unlock a similar variant of the phone. Furthermore, this method will be permanent meaning that you will have a SIM unlocked Galaxy S4 even if you will downgrade to stock Jelly Bean OS, or if you will update to an future official Android based platform. That was all for now, so let’s get started.

How to SIM unlock Samsung Galaxy S4 i9505 and i9500

  • Note: it is essential not to use the “back” button of your phone when applying the next steps; instead of that, just tap on “Menu” and select “back” from the options list that will be displayed.
  1. You need to launch the Service Mode on your phone; in order to do that tap “*#0011#” in the dialer of your handset.
  2. The Service Mode will be displayed; now you need to tap on “menu” (left soft key) and from the dropdown menu select “back”.
  3. Press the Menu button once more and this time select “Key input”.
  4. Tap on the pop-up box that will be displayed; then enter “1” and tap on “ok”.
  5. You now need to go back to the Service Mode menu; for that tap on “menu” and select “back”.
  6. From the Service Mode menu, this time select “[1] UMTS”.
  7. Up next, from the next menu select “Debug Screen”.
  8. O new option menu will be displayed; from here make sure you tap on “Phone control”.
  9. From the phone control menu you need to tap on “network lock”.
  10. Continue by selecting “PERSO SHA256 OFF”.
  11. You now need to go back to the UMTS menu; again, in order to do that, press on the menu button and select the back option.
  12. Now, from the UMTS menu you need to tap on “Common”.
  13. And select “NV REBUILD”.
  14. A new menu will be displayed; from the same select “Restore backup”.
  15. Your S4 will now be turned on a freeze state; don’t worry there is nothing wrong with your smartphone.
  16. Also, be aware as after a few moments the screen will turn black and the LED will turn into blue.
  17. In the end your SGS4 will reboot automatically; if the first boot will take longer than usual don’t panic, as this is something natural.
  18. That’s it your device has been SIM unlocked.

Congratulations, now your Samsung Galaxy S4 i9505 / i9500 is SIM unlocked, meaning that you aren’t assigned to a carrier no more. So, take a SIM card from another carrier in order to test if the procedure has been successfully completed or not. Also, don’t forget to share your experience and impressions about the guide from above with us and with other users who might want to unlock their Galaxy S4 by using the comments area from below.

Samsung Galaxy S4 Articles

  • Juan Leon

    I dont have the same options that you have going throu the servicemode menu

    • RIM


      • Narmi

        Hy RIM, Sorry , it also did not worked for me, I am from 3 Swe! have there any other process?

  • Shawn.S

    i just did it and iam going to see if it works, ill be back to let you know.

  • chitown

    worked for me. att sg4. I installed T-Mobile sim and it worked 🙂

  • irza

    How can i unlock my gs4 i337m model. Thank u

  • Fri3ndLyLi0n

    What can i say… does what it says and works amazing thanks to whoever found this unlock out


    Thanks, how to unlock Galaxy S4 I9502 ?

  • cool dude

    did NOT worked for me. mine is i9505 locked to orange UK.

    • Kyle

      Did you get an answer? I’m having the same problem 🙁

      • cool dude

        have not got any reply from these guys. may be i think this method wont work for UK networks.

    • Fravalp

      I also have the identical problem of that menu does not exist, so i just bought a code and it’s done in simple steps.

      • kendra

        what website did you use? im wanting to unlock mine asap!

        • Amber Rand

          I have the same issue as Fravalp, so i used the code to unlock my at&t samsung galaxy s4., however i bought my code from Codes2unlock,com

  • HHH

    It doesn’t work on my t-mobile S4 I9505

  • nom

    tried 10 times on rogers i337 didn’t work

    • blop

      Good lol, now your phone is permanently locked to Rogers, congrats!

  • ashish

    will it work in India

  • qwiyibo .

    It worked in my Samsung Galaxy S4 with the carrier Telcel Mexico

    • Jacobo

      Hola, funciono de telcel a otra compañia?

  • jhamal

    worked on tmobile s4 (sgh m919) went from tmobile to BTC (Bahamas)

    • jay

      Hi jhamal. I tried this simcard unlock with a tmobile gs4. But, now it wont even read my tmobile simcard. Do you have any idea on how can i undo it? I apreciate your help. Thanks, jhamal.

  • Webxprt

    Not working On i9500. menu options on the phone, not as described in this guide 🙁 inside network lock it reads menu does not exist

    • Tomy

      It happens the same to me! Same menu as yours! Could you unlock it finally? Help me!

  • Derek Allen

    Sweet, worked on my UK 3 I9505!
    Note:Even if this doesn’t work for you, you WON’T brick your phone. Least, I don’t think so. … 😉

    • jay

      Hi derek. I tried this simcard unlock with a tmobile gs4. But, now it wont even read my tmobile simcard. Do you have any idea on how can i undo it? I apreciate your help. Thanks.

      • KULAFO

        FUCK UR SELF

  • fazluke

    Worked on T-mobile S4 T999

  • Barry

    Worked with my UK O2 S4. Thanks!

    • tony

      You have uk O2 jelly bean 4.2.2 or 4.3 ?

  • mike

    the step 6 wont work on my phone

  • jason

    i am unsure as i got my phone from three uk on release day and it was already unlocked, but respect for whoever found this out and hope it works for you guys….

  • Mark

    i cant get upto step 6 cant get off the menu right at the start on a gt-i9505 o2 uk locked is there something wrong tried pressing back on pop up menu and back button loads of times just wont bring up that second menu

  • Jay

    Hi, guys. I tried this simcard unlock procedure with a tmobile gs4, but now it wont even read my tmobile simcard. Do you guys have any idea on how to undo this simcard unlock or advice on how to restore my tmobile gs4 back to its factory original state. So that it can be able to read my tmobile simcard. I greatly apreciate any help i can get to fix my problem and restore my tmobile gs4 back to the way it was before trying this simcard unlock. I really and desperately need your help “ASAP”, (((Please)) Thank You Very Much, in advance to everyone.

  • Jake

    Will this work for us cellular R970?

  • limonera

    Thank you!

  • HappyNeon

    It worked alright on my SGH-M919 !!, thxs..

  • HappyNeon

    …. w/o any SIM card worked ..

  • gelo

    no options on my i9505.

  • whitter

    your method not worked for me. but i make my unlock code purchase from safeunlockcode .com and were successful.

  • elie

    Do you have a step by step for note iii n900?

  • Frustrated dude

    Do whatever but don’t buy code from unlockunit com … its all good if the code works, but if doesn’t very hard to get your money back.. there asap means more than 1 month and then you only claim by going via your credit card company or paypal..

  • Adel ELMAHDY

    for who have difficulty with this tuto . as i know this tuto works only in android 4.1.1 not more versions . Good luck

    • Scrapy Cocoa

      That explains why. So for us with 4.2.2 and high what do we do/

  • Andy

    I can’t get passed the first service menu screen. Entering ‘1’ does not do anything. Anyone else having that problem

  • Nuno Silva

    It worked wonderfully for me. Thanks

  • Sonia

    hy guys! i have a small prob. with my phone. is locked on ee UK . if somebody wants to help me my email soniaainoss4@gmail.com

  • Barak mba WA

    Way is too difficult

  • techlion

    I need to unlock to use a simcard I get the network not available error

  • watky

    i get to step 4 and then it just repeats it self wont get to step 5 i just get menu not available

  • JC

    Worked a treat for me! Thank you! ONe issue I had while following the procedure was that I had to go back a few times (rather than just once as the procedure suggests) to get back to the UMTS menu again (Step 11) but it worked just as promised after I did that.

  • John Keeson

    Hey, I found a better way to unlock the Samsung Galaxy S4, its free and worked for my phone and takes under 10 minutes. here’s the link:

    freemobileunlockcodes . com/brands/samsung/samsung-galaxy/unlock-samsung-galaxy-s4-free/

    • Tom

      You are a di ck john keeson ^^ why would you want to spread infected websites I hope you slip on your own sh it and brake your neck

  • stefan

    Mine i do step 1 to 5 but thats all i can do it dont bring up menu for step 6

  • Clive Roberts

    This doesn’t work with the Lollipop update.

  • Jevon S Noray

    It did not work for my s4 !9505 on 5.0.1mines still lock to ee net
    work UK when I press menu and back it’s not taking me to the main menu I had to enter Q the enter 0000 then I was taken to main menu and on network lock I’m only getting on option pressoshar926 info that’s all plz help me

  • ACC

    Does not work. No UMTS option.