• Introducing XDA Computing: Discussion zones for Hardware, Software, and more!    Check it out!

[GUIDE] Galaxy S4 Sim-Unlocking

Search This thread

Strephon Alkhalikoi

Senior Member
Aug 3, 2010
7,108
3,259
Vulcan
Samsung Galaxy S4
Nexus 6
What am I doing wrong?
If installing just the modem does not work - other users claimed this worked with just a modem - you have to install a complete STOCK Android 4.2.2 ROM. Then find and use RegionLock Away to blow the SIM lock away.

Just to make this clear, you MUST be on a stock ROM, and it MUST be Android 4.2.2. Nothing else will work.

If, after doing all this you still can't unlock, you may have no option but to pay for an unlock code.
 

galaxyord

Member
Jan 1, 2017
49
13
If installing just the modem does not work - other users claimed this worked with just a modem - you have to install a complete STOCK Android 4.2.2 ROM. Then find and use RegionLock Away to blow the SIM lock away.

Just to make this clear, you MUST be on a stock ROM, and it MUST be Android 4.2.2. Nothing else will work.

If, after doing all this you still can't unlock, you may have no option but to pay for an unlock code.

Can you please attach some link of the correct rom stock? I know that the physiophysia follows that I must do my part but I assure you that I have not achieved it
 

M4zlista

Member
Sep 29, 2012
5
0
Helo guys :) I know this is an old thread, but I can't do this, because under the service menu at the [6]NETWORK LOCK there is no [3]PERSO SHA256 OFF option, just only one: perso sha256 info and under that sha256_enable_flag[1]..
What should I do?
 

Top Liked Posts

  • There are no posts matching your filters.
  • 160
    Follow steps carefully and correctly. Remember, this could damage your device.
    Regular disclaimer applies to all.

    you have been warned

    Instructions:

    METHOD 1

    1. Dial *#0011#


    2. press Menu then tap BACK


    3. press the Menu again the tap KEY INPUT then enter 1, press OK button

    4. press Menu then tap BACK

    Your are now in the SERVICE MODE MAIN MENU


    Tap [1]UMTS


    then [1]DEBUG SCREEN


    then [6]PHONE CONTROL


    then [6]NETWORK LOCK


    then tap [3]PERSO SHA256 OFF


    Go back to the UMTS MAIN MENU by pressing Menu then Back then tap [6]COMMON


    then [6]NV REBUILD


    then tap [4]RESTORE BACK UP


    the device will freeze, black screen, Blue LED Light, Menu and Back key ON. Wait for it to reboot (about a minute).

    Your Samsung Galaxy I9505 is now Sim-Unlocked.






    ----------

    METHOD 2 - artnada

    This is what I did. Slightly different to OP.

    I did this with my AUTHORISED Sim in first.


    1. Dial *#0011#
    2. press Menu then tap BACK
    3. press the Menu again the tap KEY INPUT then enter 1, (wait a few seconds) it auto jumped into service menu.

    4. press Menu then tap BACK (not needed for me)

    Your are now in the SERVICE MODE MAIN MENU

    Tap [1]UMTS (may auto go into next menu (mine did)

    then [1]DEBUG SCREEN
    then [6]PHONE CONTROL
    then [6]NETWORK LOCK
    then tap [3]PERSO SHA256 OFF

    Go back to the UMTS MAIN MENU by pressing Menu then Back (several times)

    then tap [6]COMMON

    then [6]NV REBUILD (if this does not work next time)

    do [4]RESTORE BACK UP

    the device will freeze, black screen, Blue LED Light, Menu and Back key ON. Wait for it to reboot (about a minute).

    Your Samsung Galaxy I9505 is now Sim-Unlocked.

    Edit:

    When I booted back in with AUTHORISED sim, I had to turn off Mobile Data, then turn it on.
    I then turned off the phone, put my UNAUTHORSIED Sim in, booted back up and NO NETWORK PIN request!

    Again, I had to turn off Mobile data, then turn it back on. The UNAUTHORSIED Sim worked!!! 

    My previously locked to Three UK GT-I9505 is now unlocked to all networks  Thanks again to XDA (Y)


    ----------


    It has been reported that this is indeed a "permanent" unlock:

    artnada's tests:

    I had sim unlocked my phone when I was on the "djemby" pre-rooted I9505XXUAME2-DEODEXED-KNOX-FREE-HD-VOICE

    I have just re-flashed my original factory Three ROM. I9505XXUAMDC_I9505H3GAMD6_I9505XXUAMDC_HOME and the Sim unlock was still UNLOCKED!

    I then re-flashed back to I9505XXUAME2-DEODEXED-KNOX-FREE-HD-VOICE.tar.md5 and the sim unlock was still UNLOCKED!

    So, I think we can safely say this sim unlock method is a permanent unlock! :good:

    Mod Edit

    In order to get this to work ,you need modem ME2... follow this :


    Finally I managed to sim unlock my phone after 10 days of experiments



    I have a Samsung Galaxy S4 GT-i9505 LTE with Android 4.4.2 bought from France (XEF):
    1. I rooted my phone using CF-Auto-Root
    2. I flashed with Odin the ME2 modem only (XXUAME2 for my case) using the CP/PHONE bouton - find the list in this thread
    3. I used RegionLock Away as described in this post

    Thanks to all members of XDA





    ----------

    Credits:
    royskeyz
    djembey
    artnada
    11
    Hungary T-mobile Perfect!!THX

    you're welcome... Enjoy your unlocked S4... a simple THANKS will do...
    6
    Tested only on Samsung Galaxy I9505

    Instructions:

    1. Dial *#0011#



    2. press Menu then tap BACK



    3. press the Menu again the tap KEY INPUT then enter 1, press OK button

    4. press Menu then tap BACK

    Your are now in the SERVICE MODE MAIN MENU



    Tap [1]UMTS



    then [1]DEBUG SCREEN



    then [6]PHONE CONTROL



    then [6]NETWORK LOCK



    then tap [3]PERSO SHA256 OFF



    Go back to the UMTS MAIN MENU by pressing Menu then Back then tap [6]COMMON



    then [6]NV REBUILD



    then tap [4]RESTORE BACK UP




    the device will freeze, black screen, Blue LED Light, Menu and Back key ON. Wait for it to reboot (about a minute).

    Your Samsung Galaxy I9505 is now Sim-Unlocked.






    Credits:
    royskeyz
    djembey


    hi

    tried this on my I9505 locked to EE Uk - dosnt work :(
    5
    Tried with MDM, MDF, and currently ME2. All still locked on Three UK.
    EDIT - IT WORKS!!!!!!!

    This is what I did. Slightly different to OP.

    I did this with my AUTHORISED Sim in first.


    1. Dial *#0011#
    2. press Menu then tap BACK
    3. press the Menu again the tap KEY INPUT then enter 1, (wait a few seconds) it auto jumped into service menu.

    4. press Menu then tap BACK (not needed for me)

    Your are now in the SERVICE MODE MAIN MENU

    Tap [1]UMTS (may auto go into next menu (mine did)

    then [1]DEBUG SCREEN
    then [6]PHONE CONTROL
    then [6]NETWORK LOCK
    then tap [3]PERSO SHA256 OFF

    Go back to the UMTS MAIN MENU by pressing Menu then Back (several times)

    then tap [6]COMMON

    then [6]NV REBUILD (if this does not work next time)

    do [4]RESTORE BACK UP

    the device will freeze, black screen, Blue LED Light, Menu and Back key ON. Wait for it to reboot (about a minute).

    Your Samsung Galaxy I9505 is now Sim-Unlocked.

    Edit:

    When I booted back in with AUTHORISED sim, I had to turn off Mobile Data, then turn it on.
    I then turned off the phone, put my UNAUTHORSIED Sim in, booted back up and NO NETWORK PIN request!

    Again, I had to turn off Mobile data, then turn it back on. The UNAUTHORSIED Sim worked!!! :)

    My previously locked to Three UK GT-I9505 is now unlocked to all networks :) Thanks again to XDA (Y)
    5
    working on my o2 uk, i can use my three sim now, thanks

    you're welcome... a simple THANKS will do...



    should i have any sim inserted ? or without sim?

    you can do it with an accepted sim inserted or you can try inserting a non accepted sim, when greeted with the ENTER UNLOCK PIN just press dismiss then follow the steps.