How to Unlock Sprint Galaxy S4 for Global SIM GSM




I recently traveled to Europe with my Sprint Galaxy S4 world phone. I planned on getting a pre-paid GSM SIM card to use for Google maps and navigation. It turned out great.

At the airport, I found a “SIM Local” prepaid wireless shop and paid 20 euro (about $26 USD) for a Meteor SIM card that included 10 euro for 1GB data and 10 euro for calling (it costs 15 cents euro to call international, about 60 minutes). That will be plenty for just a week’s travel.

Before I arrived, I rooted and manually unlocked (following this guide) the stock TouchWiz ROM on my S4. When we pulled the Sprint GSM card and put the Meteor card in, voice and texting worked right away; however, the data didn’t work and no Edge, 3G, or HSPC (H+) symbols were displaying. I had missed one last step that no one had mentioned in the root and unlocking demos: APN unlock. In order for the Sprint S4 to work on GSM data, you must unlock the APN settings that Sprint hides and locks by default.

After the APN settings are unlocked you can now program your phone to use the GSM data plan. I have been experiencing amazing data speeds after setting it up.

unlock-samsung-galaxyHere’s how to finish unlocking your Sprint S4 APN settings:

1. Download ES File Explorer from the Play Store
2. Open ES File Explorer and open the settings by pressing the key next to the home button
3. Scroll down to Root Explorer and turn it on
4. Tap the word Root Explorer And choose Mount R/W.
5. Switch all the buttons to the R/W column and click OK
6. Go to your / folder and then the System folder
7. Open Build.prop with the ES notepad
8. Click the button in the top-right and choose edit
9. Scroll all the way to the bottom and add these two lines:
ril.sales_code=LOL
ro.csc.sales_code=LOL
10. Click the back button and save
11. Restart your phone
12. Download Offline SIM APN Database from the Play Store
13. Open Offline SIM APN Database and click Search APN Settings for this Network. Choose the carrier.
14. Copy the settings and paste them into the Go to Android APN Settings screen. You’ll need to click the button left of your home button to add a new APN

Done! Data should now work.

Searches:

yhs-fullyhosted_003,cara injeck nomor di hp samsung spirit s4,samsung sph l720 how can use 3 g,Change sim behavior root explorer,samsung s4 sprint international sim,samsung unlock,settings to change from cdma to gsm galaxy,sprint galaxy 4 on gsm network,unlock 3g network using es explorer,unlock rooted galaxy s4

, , , , , , , ,

  • Shaun Chapman

    will this unlock the phone for USA GSM service?

    • spoonjab

      no, this works for international GSM only. T-mobile and AT&T won’t work

  • Neil Shah

    Thanks for the thorough procedure.. I have followed all steps but I still can’t access the 14th step..i.e.Android APN settings in the Settings menu

  • Ebonee

    Beginner here 🙂 I dont know much about ROMS does the sprint galaxy come with Touchwiz or is that something i definitely need to download??Thanks !

    • spoonjab

      TouchWiz is used to describe a Samsung stock rom. Samsung has created their own interface for the homescreen, widgets, and other apps on top of the standard Android rom. They refer to these customizations as TouchWiz. Just like HTC refers to theirs as Sense. If you don’t know what TouchWiz is, you probably don’t want to be modding your phone like this.

  • macke

    worked perfectly thanks alot for the info

  • Liana Bajer

    whenever I turn on Root Explorer my phone automatically turns it back off saying that it is unsafe. I am in Canada, and bought an unlocked Sprint S4… texts and calls work, just not my data. Any help?

    • spoonjab

      Are you sure your phone has root access? I’m not sure which variant of the S4 you have. With Sprint, you should be able to call them and unlock your phone now. It may not be required to follow the process on this post any more.

  • Dx Warrior

    Will it work for GSM Network in Pakistan? I am using Sprint Galaxy S4, SPH-L720
    running CyanogenMod 13 on it, and my device type is jfltespr.
    I have been calling, and messaging with it for two months, but now suddenly, without any reset , custom ROM , or any other thing. the network wen down. And CM13 is a remedy I hoped fruitful but is’nt.
    Please help.
    Thanks in anticipation.