yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] sbhor:
tried flashing to tmobile stock and connected to dfs

I tried flashing the phone to Tmobile stock rom after unlocking it on service menu.... it still is the same it says invalid sim.... I also tried to connect it to cdma work shop and provided the correct SPC and password, but i am not an expert in cdma programming , is there a guide or knowledge base that i can refer to.... i see a lot of data in front of me that i dont understand....
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] agafed:
So, just to be completely sure I understood, there's no way (besides the Cust. Serv. from Sprint) to buy a S4 SPH-L720 and being able to use it on International Carriers?

Thanks...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] lafester:
half the time sprint can't even unlock it.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] cuetzpallin:
Unfortunately not yet, I'm still looking for a solution, and I'm guessing that I made a bad deal buying mine
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] agafed:
Thanks! What a shame... good luck!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] cuetzpallin:
I just found an old guide for a mexican CDMA carrier, I'll try it tonight and see if it works, I'll post later my mileage as some things could not be the same :confused:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] shanusmarty:
Hey! Any success?

Did Sprint S4 work on International GSM carriers?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] robinhoodpatell:
Unlock Sprint GS4 sph-l720

Hello brother, i tried checking it with repair shops in India and no one knows how to unlock it.

Apparently all the experience forum members of this group also dont have any idea.

The only thing we need to do is to wait ... :(
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Nautilusus:
Yes it can.:p
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] vchigne:
How so?

How?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Nautilusus:
Just have to call Sprint and they will do it wirelessly.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] devoureddreams:
That's only for international use not domestic
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] lordfariq:
and u if u are not from us or sprint user i wont get this option. u wont be able to unlock it
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] vchigne:
Or if you have a Bad ESN phone....just like me :(
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MELVINUA:
i buy phone samsung l-720 spring in usa . in my country phone not work - invalid sim card . please help me unlock this telephone .thank's
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] lafester:
open a sprint account, wait 90 days and then ask them to unlock :)
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MELVINUA:
phone have bad esn
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MELVINUA:
telephone have bad esn probler register in sprint acount
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] dennis5pia:
Try this:

Step 1: Launch the Phone app on your Galaxy S4, and dial in: *#0011#

Step 2: Press the Menu button followed by the Back key. Then, hit the Menu button again and select KEY INPUT. Enter 1 and press the OK button to enter ServiceMode.

Step 3: Press Menu one more time and tap back again. This will pull up the Main Menu for ServiceMode. Tap [1] UMTS.

Step 4: Now select [1]DEBUG SCREEN, followed by [6] PHONE CONTROL.

Step 5: From the next screen, pick [6] NETWORK LOCK.

Step 6: You’ll get three options. Hit the one that says [3] PERSO SHA256 OFF.

Step 7: Now, you need to get back to Main Menu. To do this, hit the Menu button followed by the Back key. In Main Menu, now pick [6]COMMON, and then [6] NV REBUILD.

Step 8: The phone will tell you that a Golden Backup exists. Tap [4] Restore Back-up.

Your device will now go through a series of “conditions”, where it will first freeze, then get on a black screen with Blue LED on and both capacitive buttons on, after which it will reboot automatically. The whole cycle might take a couple of minutes, so be patient. Once it powers back on, it’s network unlocked, permanently. Enjoy!

Post feedback if success or not.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] XxSHaDoWxSLaYeRxX:
Did this on my ATT galaxy s4 and it worked flawlessly. Should also work for sprint
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MELVINUA:
sprint does not work with this . because is very problem
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] autoprime:
correct, the hidden service menu trick does NOT work on Sprint GS4.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MELVINUA:
service menu is available but after these commands do not change
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Dnice25:
Has anyone tried to root the phone,extract the gs4 tmobile/att service menu from either carrier? Then place it into the sprint gs4 via recovery.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] dennis5pia:
I tried but nothing. The cellphone find the GSM networks but don't register on networks.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Dnice25:
The app is Samsung service menu look it up in the play store then look for the options you want from there?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] pvinodnayak:
[how to] unlock sprint s4 gsm

Try this

adb shell

su

am start com.sec.android.app.personalization/com.sec.android.app.personalization.Personalization

OR

This in emulator

am start com.sec.android.app.personalization/com.sec.android.app.personalization.Personalization

Only thing is that, it requires a CONTROL KEY.

Original post

http://xdaforums.com/showthread.php?t=2285274
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] obender:
So, did anyone figured out where/how to get this code?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MELVINUA:
This code is probably our only GOD knows
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] tumana93:
may be
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] GonzalesPro:
Sprint never unlocked their phones using code. Unlock code will never appear. We need another way to unlock it. We should pay attention to the way unlock HTC One.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MELVINUA:
Supports this view
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] GonzalesPro:
No news? (((((
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] jctello1:
Soooooooo.......I guess no luck with the unlocking of our phones?,,,,,,,,
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] ragde2210:
really?

Im in mexico and I asked at telcel if they can unlock my phone,they say yes so I asked how they do it and they said via imei

I dont know if believe it or not

Samsung galaxy s4 sprint version sph-l720 already activated at iusacell
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Ingenium13:
It won't work. The CDMA version is different from the GSM only version.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] dennis5pia:
So how could you unlock the GSM part of that phone?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Ingenium13:
Currently the only way is to call Sprint and get them to unlock it.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] sergmen254:
Dont do this please

Please do no do this because it messes up the phone (take my word) i can now no longer ger any 3g service at all, just talk and text, the 3g is in and out put when im in a 4g area it works im assuming off of the sim card! Please dont do this! If anyone can help me undo this id much appreciate it. Thanks

sergmen254 - pos gs4
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] xuser:
Don't do what? What did you actually do?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] sergmen254:
i tried doing the "FREE NETWORK UNLOCK" idk why either i dont even care to use gsm on my phone and i proceeded to do it anyway! now my GS4 is ruined
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] pacors123:
Hi i´m from mexico too, excuse me how did you unlock your cellphone to iusacell, also i already have my msl y got it from an app called "Get my MSL".
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] autoprime:
Sprint GS4 sim unlock for international GSM - http://xdaforums.com/showthread.php?t=2415587
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] hellboy2703:
can i use a bad ESN or bad IMIE sprint S4 as a gaming device? I don't need it as a phone. Not going to use on any operator, it would be always on wifi . I am in Bangladesh, some one here is selling a sprint locked Galaxy S4 at very low price.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] nicotheandroidguy:
Yes you can.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Mship:
So if you don't have a bad ESN, you can just call sprint after 90 days to get your phone unlocked.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Yes but it doesn't always work. So this is almost 100% sure that you will be unlocked, if you follow auto primes thread.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] obender:
Just to put it in to the perspective, I had to replace my phone and go through BBB complain to have this finally resolved on the second phone, so having the method that doesn't require Sprint involvement is definitely beneficial.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Exactly.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] pacors123:
I just unlocked my phone and i´m getting calls already but i called my phone provider and they told to access apn settings for them to provide me internet but i can´t get to that opcion. What should i do?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] lafester:
go to the sim unlock thread pretty sure the directions are there.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] rscooldesire:
not unlocking

However sprint is not unlocking automatically, they unlock over phones now one device in year and contract period should be more than 90 days.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] new_bie:
Hello

I am from India, I have a sprint s4.. Can you pls provide how did you unlock your phone? Bad ESN.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] J0eggernaut:
I used my sprint s4 overseas in Australia on a GSM networks without any issues. I had to call sprint first to get them unlock the sim from the phone which they did when my I just renewed my contract and bough the S4 (less than 90 days). I was able to pop in the foreign gsm sim card and have voice/text service but no data service.

I had to edit use script on andriod 4.2 to unlock the ability to edit APN settings (android 4.3 it is already unlocked) so I could add the data service for my gsm prepaid service. Once I did that I was able to get lte/3g/voice/text service. BTW the rest of the world has great cell phones plans. I was able to get 40 days, unlimited national voice/text and 5GB of data LTE speed for $40 AUS dollars.

You can't use a US GSM sim card in the phone because it is blocked and restricted though. So trying to jump from ATT, Verizon, T-mobile from sprint is not currently possible.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Last part is not fully true. There have been people who got Tmobile, ATT, and net10 to work on a sprint gs4 after unlocking it by Sprint or manually.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] cyrusalmighty:
So is it possible to use a sprint s4 on att? I can pay to get unlock code but I wouldn't want to lose internet speed. I know how to change apns but that doesn't always work of course. Has anyone used Att gs4 on sprint even?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] eheilner:
I had my sgs4 unlocked by sprint and put it on att/tmo and had h+data with talj and text. just not as easy as putting the sim in and go there is a few steps to take in order to get it to work. also have to add the apn but thats only one step and not even the first step. also switching back to sprint is tricky to cuz the phone will get stuck on gsm. also ran into roaming problems where while on sprint it wouldn't try to roam on cdma it would try and pick up gsm networks (doesn't work wont really roam) so it can be problematic if you don't know the whole steps forward and back.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] iREFRACT:
Just to Clarify,

Once you called sprint to get it unlocked for international usage, what else was needed in order for it to function with T-Mobile or other US carriers?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
I can speak for the guy but I'm assuming he had to off done something else. Sprint unlock only works for international from my knowledge.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] eheilner:
did you do the UICC unlock update? if so send me a PM ill tell you the steps. but if you had it unlocked and got a new sim card then you did a different unlock. sprint has two types of unlocks they do one is a prl update with new sim card. the other is an update they push so you can use other sim cards. "they say us sims wont work" but with a few steps it will. also you need to be on MDC or MDL baseband.

---------- Post added at 01:24 AM ---------- Previous post was at 01:18 AM ----------

no I had sprint push the UICC unlock to my phone. wasn't as easy as just put the sim in and go but only like 5 steps to get it to work.

and my method also works on the Samsung note
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] iREFRACT:
From what I'm guessing now, based on what you've shared. I've only unlocked the SIM card slot to be used with NON-US carriers. Which is a step in the right direction I suppose, but ultimately I'd like to use it here in the states. I am currently a sprint user (Galaxy Note 2, LG G2, S4, Tab 3), but I acquire phones else where with clean ESN's, do you (OR ANYONE) know if I would still be eligable to request an unlock code for a Sprint phone (clean ESN) not associated with my account?

Thanks again! :good:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] eheilner:
Sprint does not use unlock codes. If you can put a us sim in and not get invalid sim then it will work on any us network(gsm) once put in sniffer mode/release 8 setting . Default even when unlocked it stays on realse 99 for talk and needs to be set to sniffer. For data the same thing. So what I see here on these forms is ppl changing one and not the other.

But they need to both be changed at the same time or one wont stick.

So it might work but you wont have full network access. Talj might work but no data or text any number of things can work with out the other one working. Some ppl get on tmo but only have 2g and E network thats cuz they didnt put it in sniffer/release 8 hspa+.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] iREFRACT:
I see!

Correct, the phone is reading the (Tmo) SIM Card (not receiving a message stating invalid SIM) but is not registering on the network. Would you be able to point me in the right direction, as to how to enable sniffer mode/release 8 setting?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] eheilner:
Could you check something for me ##0011#. 1-1-6-3-4(revision control)-1tell me what that is set on. Just so you know for it to work tmo you need to do these steps every time. Also you cant just go into system setting mobilbe network and put it back on sprint.

---------- Post added at 02:54 AM ---------- Previous post was at 02:00 AM ----------

Did you by chance try a different sim card? Did you have to cut it out yourself? I cut my first sim and couldnt get it to read in my s4 but my iphone would read it. Seems like the s4 sim try is kinda picky.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Ag843:
i have unlocked my sprint s4 for international as well but cant get it to work for tmo. can anyone help
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Do the domestic unlock. I'll leave the finding of that thread to you.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] tjb1986:
Sprint CDMA sph-l720 working on GSM At&t sim without any unlocking. Working for.me
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MiamiMike:
No you can reverse it, you can either ##72786# from dialer if that doesn't work just flash back the stock image, I have done this several times attempting to get the Modem to work.

Another post here on XDA says downgrade modem etc, but for me it hasn't worked either.

I found a guy who says he can make it work and you can run whatever rom you want, but of course won't give up the secret.

---------- Post added at 03:05 PM ---------- Previous post was at 03:04 PM ----------
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] tjb1986:
First, make sure you are rooted and have Clockwork Recovery.

Second, download and install a ROM called DEATHSTALKER, when you install it,

it will give you the option to install for any carrier.

I know it will work it you choose T-Mobile or ATT. I got both working.

Third, after ROM is installed, dial ##3282# should bring up connection menu,

and you want to make sure CDMA is not selected, you won't get 4g or LTE, but speed is OK.

Only GSM will work. Then, after that go manually search and register on to your network under mobile data menu. This is where the ROM comes in, it tricks the phone to think it is actually an ATT or TMobile device, so it won't lock out you SIM CARD.

Last, be sure to use proper APN if needed, any more questions or problems let me know.:good:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] MiamiMike:
I will attempt to set the record straight.

1. YES you can go back to Sprint if you got everything working on GSM ( I have done this as well )

2. YES you can unlock the SIM so it works on GSM ( I have done this on 2 phones from Sprint to T-Mobile, should work the same for other GSM providers.

This is the 100% accurate documentation on how to accomplish the task!

http://xdaforums.com/showthread.php?t=2530610
[Galaxy S III Mini Themes and Apps] Denerod:
Hi.

I've found this app in xda forum, though that we could use it. I know we have the BLN kernel for our devices but i also know that there are some users who use goldenkernel and it is not possible to use BLN and golden kernels at the sime time.

Basically this app does what BLN kernel does, it lights the capacitive buttons when you have a notification.

I tried to run it but i got stuck at the file selection screen. I don't have time to deal with this issue right now, so i thought that maybe one of us can try and see if the app works properly in our devices?

Here is the link for the app: http://xdaforums.com/showthread.php?t=1958939
[Galaxy S III Mini Themes and Apps] vonuzu:
No, it's not working on our phones. I got in touch with the developer few months ago and he said that it would not work on our phones due to some kernel thing..
[Galaxy S 4 General] gffgff:
thanks for sharing :good:
[Galaxy S 4 General] zaki aziz:
hi..

thx a lot for useful info for me as newbie. i'd like to req. permission to copy your info to my personal note..

i'm appreciated of your kindness.

TQ
[Galaxy S 4 General] adamantell:
Thanks, great information

Send From Samsung Galaxy S4
[Galaxy S 4 General] nuncafalla:
muchas gracias
[Galaxy S 4 General] Tha TechnoCrat:
Yes you can copy. :)

Started from the bottom
[Galaxy S 4 General] XX66L:
tks it's usefful

do u recommand a kernel for best battery life?
[Galaxy S 4 General] Xv1nX:
i am using jammal rom and allucard kernel, but i only get 3460 scores and battery life is terrible. any tips?
[Galaxy S 4 General] Techno848:
Great info :D
[Galaxy S 4 General] kkloon:
Informative. Much appreciated.
[Galaxy S 4 General] oxwaldia:
245235568

There are plenty of apps in play store to disable wifi and 3G in order to optimize battery
[Galaxy S 4 General] nizmo64:
i use zero lemon battery its great 7500 mAh lasts for days :D
[Galaxy S 4 General] Hoffsil:
kernel for best battery life?
[Galaxy S 4 General] bltzem:
Ive heard good things about talexop kernel
[Galaxy S 4 General] sifuentes2013:
I also have zero lemon battery 7500 mAh I can get almost three days life on it without a charge :)
[Galaxy S 4 General] hunter777:
Hello .. after i instal an official lollipop using odin i notice that my battery mah drop from oroginal 2600mah to 2100mah i using many programs like aida64 and battery monitor widget and every program told me my battery is only 2100mah and i think the mah is reading from android kernel , i downgrade the phone back to kitkat 4.4.2 and the battery mah reading was correct and back again to 2600 so i think it was a mistake during the install of lollipop so i download the newer firmware available -I9515XXU1BOE3- and upgrade my firmware again but the problem come back again with wrong battery reading only 2100mah, i try to wipe the battery state and make calibration but nothing solved i downgrade the phone and upgrade it again and the problem appear every time ... could any one please help me how to solve this problem ... thanks in advance
[Galaxy S 4 General] zozoz13:
It's normal. It's just wrong reading the battery capacity in lollipop. But, actually it is 2600mAh. It doesn't matter.

Sent from my Galaxy S4
[Galaxy S 4 General] skezza:
I found undervolting could save up to 25% battery on my Nexus 4. I dropped it by 100mv which sounds a lot, but the device ran just as stable for I'd say 99% of the time. The only time I ever had a problem was if I started to take burst photos on the camera. I actually looked at recompiling the Camera apk to ramp up the the voltage ever so slightly.
[Galaxy S 4 General] hunter777:
thank you for your answer ... i want to know is this a common problem when upgrading to lollipop and if any one else face this problem with wrong mah battery capacity
[Galaxy S 4 General] portaleus:
Do not worry, it is not a common problem but I had this some months ago on a leaked TW ROM. The problem fixed itself when I flashed CM12.1.

There is no impact on battery life.
[Galaxy S 4 General] eldar4uk:
with latest custom kernel its working around 2 days, very impressed
[Galaxy S 4 General] benna:
THi. My friend has the ZeroL 7500 and I have the Anker 7800. Looks like his battery capacity goes down quikly. I preffer the Anker over the Lemon. How old is yours and how is it holdung up mate?
[Galaxy S 4 General] Apexpredator12:
Just a quick question what would be a good Kernel for extending battery life, performance and features? using the I9505 with a stock rom but batters goes way too fast from a 100% charge can be down to 91% in 10 minutes.
[Galaxy S 4 General] zetlaw:
Few tips from me.

Stay with stock kernel because samsung should know what work best with their devices.

2. Keel monitoring on running application. Disable services like facebook and linkedin for push. And use amplify.
[Galaxy S 4 General] doublegood:
Anker 7800 sounds great much appreciated
[Motorola Droid RAZR] eliasbaeza:
Hi! I want to know if is a method to take screenshots with the stock rom retail JB 4.1.2 without an external app :confused:

Thanks :D
[Motorola Droid RAZR] Gus194:
Hold Volume Down + Power
[Motorola Droid RAZR] eliasbaeza:
Thanks a lot! before i put a custom rom to take screenshots (: :victory:
[T-Mobile, Samsung Galaxy SIII] derrickmd18:
I have a 200 security deposit for new service. My question is when will I get the money back if it's no contact
[T-Mobile, Samsung Galaxy SIII] KennyG123:
Please read forum rules before posting

Questions and help issues go in Q&A and help section

Thread moved

Thank you for your cooperation

Friendly Neighborhood Moderator

Wouldn't a call to your carrier have been quicker?