yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 General] dirtyalphaman:
This is the issue I think I had! Even though i have the L720.. This first happened when I tried to flash to GamerRom 5.1.1 (great rom, just wouldn't work for me). But I went back to JFLTE GPE and had to switch back to WCDMA in the *#4636#*#* menu. It gave me calling back, but texts and mms have both been gone since. I've even been back on 4.4.2, but still have no messageing. :(:(:(:(:(. Have you seen any fixes for this issue?

---------- Post added at 06:23 PM ---------- Previous post was at 06:22 PM ----------

Tried by no luck. Thanks!

---------- Post added at 06:24 PM ---------- Previous post was at 06:23 PM ----------

Thanks for the clarification. I understand now.
[Sprint Samsung Galaxy S 4 General] Chevyblood561:
Did u try the manual setup also?
[Sprint Samsung Galaxy S 4 General] dirtyalphaman:
What manual setup are you referring to?

Edit: [Solved] Hey, I've solved my issue through a few steps. In the Phone Info menu (*#*#4636#*#*) I saw a bunch of things that I really didn't recognize. I Googled each one and eventually came to SMSC. When I hit update, I kept getting an error. When I hit refresh, it gave me "4", 129. After googling it and really updating it, I got my messaging back. I don't know, but it seems like going up to 5.1.1 really messed with some things for my phone. Thanks for your help everyone. I really appreciate it and I hope this may help out others who come across this same issue.
[Sprint Samsung Galaxy S 4 General] TheGaffler:
I followed the instructions to a T! Everything works like a charm. I created an account here just to tell you guys thanks!
[Sprint Samsung Galaxy S 4 General] gmap516:
Does this phone support GSM LTE speeds?
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
It is an LTE phone, yes
[Sprint Samsung Galaxy S 4 General] optimummind:
Has anyone called Sprint to request a Domestic Unlock for the S4? Since my S4 has been contract fulfilled, I called Sprint and requested a domestic unlock. They told me my S4 qualifies and said they remotely performed the domestic unlock after being on hold for about 30 minutes. They said the procedure is new and they aren't too familiar with the process yet.

I was told to leave the phone on for about 30 minutes than try inserting in a domestic SIM card from a different carrier.

I'm currently on the latest OD2 Lollipop build and I'll post my results later.
[Sprint Samsung Galaxy S 4 General] dromango:
my contract is done with sprint and im doing the same thing on od2 lollipop build.

They gave me a "master code" but not sure where to enter it. I tried unlocking using this thread but im not getting any menu options.

says "no service, imei certi: na"
[Sprint Samsung Galaxy S 4 General] dromango:
how can i reverse the settings I did? i'll just leave it on sprint for now.
[Sprint Samsung Galaxy S 4 General] bthorne79:
No the sprint s4 will not get LTE Sim unlocked on AT&t or T-Mobile

---------- Post added at 11:39 PM ---------- Previous post was at 11:39 PM ----------

Ohhh whats the master code
[Sprint Samsung Galaxy S 4 General] dromango:
code is 373546. not sure how to use it though.
[Sprint Samsung Galaxy S 4 General] optimummind:
I popped in my Straight Talk SIM card into the S4 and I got an Invalid SIM message. The Sprint tech support phone line was closed so I reached out through Chat. The lady had me on "hold" for a long time & said that the Domestic SIM unlock appeared successful on their end. Then they gave me a direct number to call tomorrow to continue the investigation. Will update again later.
[Sprint Samsung Galaxy S 4 General] LordKel:
It sort of worked

Texting and talking seem to work fine after I did this. However the big problem I have is it is storm in like 2G data mode. I get 0.2 down and 0.14 up. Is there some setting I screwed up on or something, because even 3 g should be hitting 1-3 Mbps... I am sort of technically competent, at least when it comes to following directions, so I am sort of hoping that you guys can help me out a bit.

Thanks!
[Sprint Samsung Galaxy S 4 General] bthorne79:
Thanks for the code most cases if your full stock and not unlocked When you put in a SIM card from your new carrier, you should be prompted for an unlock code. Punch that in and you should be good to go. If you can’t get your*hands on the new SIM right away, but want to have your Samsung Galaxy S4 prepared ahead of time, you should be able to input the unlock code by opening the phone dialler app and punching in #7465625*638*(unlock code)# or #0111*(unlock code)#.*
[Sprint Samsung Galaxy S 4 General] optimummind:
Those dialer sequences doesn't do anything on my Galaxy S4 on the OD2 Lollipop build.

====================================================================================

So I called Sprint and talked to their "Advanced" tech support representative. He said all Sprint is obligated to do is to provide the customer with the MSL number needed for the Domestic Unlock but not actually perform the Domestic Unlock for the customer. When asked why, he replied that they have not been trained to perform the Domestic Unlock procedure on the Galaxy S4.

He also corrected the previous information I received from the non-Advanced tech support personnel, which is to say that there is no remote Domestic Unlock procedure.

The Advanced tech rep said I have 3 choices on what to do with the MSL code.

[1] Take the phone into an official Sprint Repair Store and have them unlock for Domestic with the provided MSL code. Yet, when I called a Sprint Repair Store, they said no one knows to perform a domestic unlock on the Galaxy S4.

[2] Call my new carrier of choice, such as AT&T or Straight Talk, and ask them for the domestic unlock procedure with the MSL code. I called Straight Talk tech support and they don't know how to perform the domestic unlock. They asked me to perform the domestic unlock first then call them to activate service with Straight Talk, lol~

[3] Call a local phone repair store and see if anyone knows how to do domestic unlock with the MSL code.

In the end, I decided to simply revert back to NG2 and perform the domestic unlock as outlined in one of the DIY threads here. Seems much simpler and straightforward, I hope.
[Sprint Samsung Galaxy S 4 General] dromango:
Thanks for explaining further. When I was on the phone with sprint, they said they can remotely unlock it and I should wait 3-5 days....

on another note, I never got a prompt to enter a code when I put in a live sim card for tmobile. The phone gave me a Sim Card error notification.

If this is going to be too much hassle which it is already, im going to just sell it and get newer phone for same value. Farewell sprint and farewell samsung.
[Sprint Samsung Galaxy S 4 General] optimummind:
And looking over at the official forum, Sprint said Samsung has no plans to update the firmwares of older devices so that a popup screen appears asking for a SIM unlock code. Samsung will implement such functionality only for newer devices going forward.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Ughhh. So much bad information in the last 10 posts or so. Allow me to clarify:

1. No Sprint phones (iPhone 5c and up excluded) that were released before February of this year will get Domestic SIM Unlock (DSU) capability. The bit about "automatically doing it over the air" is utter BS.

2. Sprint phones are not GSM based. Therefore they have never, and likely will never, have or use "unlock codes" like a GSM phone will. That's why, when you insert a different carrier's SIM, it doesn't ask you for the code - it just sits there and tells you "Invalid SIM".

3. The MSL code has absolutely nothing to do with GSM unlocking. It's for unlocking the CDMA programming parameters so that you can have it flashed to a prepaid CDMA carrier. Even so, getting the code is only the first step - and the easiest. It's very easy to obtain he code from the phone itself, without contacting Sprint.

Bottom line: If you want a Sprint phone DSU'd, follow the existing guide here on XDA. But also read the entire thread(s) - the OPs are not maintained or edited and are out of date.
[Sprint Samsung Galaxy S 4 General] mynameistory:
See here:

One more time.

I found out why I was unable to get H+ on my phone!

Here:

Quote:

Originally Posted by imbmiller

10) Under the NETWORK CONTROL menu we just came from select [4] AQUISITION ORDER and change it to [3]UMTS_GSM

After selecting [1] UMTS-GSM in acquisition order, it somehow kept reverting back to GSM-UMTS, as if I had selected choice [2].

It seems as though the menu selections are titled incorrectly!

When I selected [2]GSM-UMTS, it said [1] UMTS-GSM selected. There's a mix-up in the menu!

Then I selected WCDMA ALL in the band selection, and instantly picked up H+.

Look for this little goof-up during your menu selections!

Make sure you only select WCDMA ALL. Don't mess with GSM, LTE, or any of the others.
[Sprint Samsung Galaxy S 4 General] M1lt:
Lollipop anyone?

I've been running 4.4.2 with the MDC modem for about a year now. I'm using the SPH-L720 on T-mobile. Has anyone tried to upgrade to 5.0.1? Does anyone have a ROM they reccommend?
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Unlock is possible on stock 5.0
[Sprint Samsung Galaxy S 4 General] iggloovortex:
If it's already unlocked on 4.4.2 and I upgrade using the update they're pushing through the phone, will I have to re-unlock or will it stay unlocked?
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
If you're using it in the US, it will relock you
[Sprint Samsung Galaxy S 4 General] iggloovortex:
of course, and i did some seearching, unlocking isnt that easy huh
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Ehh... I think it is. But I've done lots of them
[Sprint Samsung Galaxy S 4 General] eric303:
there was a ADB command that can get you into the secret menu, i cant seem to find it again, does anyone know what the command was?
[Sprint Samsung Galaxy S 4 General] Shaun_vip:
That is incorrect, at least for me... I started at ng5 and unlocked... did the OA3 OTA and OD2 OTA (had to flash stock recoveries and reflash mk5 modem), but turned on GSM and had straight talk ATT sim working properly when network set to GSM immediately after reboot with update. I used Galaxy Tools and it verified unlock status before I even tried using it.

I apologize I didnt realize this was the l720 NOT "T" forum... mine is a l720T delete this post if possible... Again Apologies.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Well the T doesn't have its own forum... But my response was to someone asking if accepting the Lollipop OTA would relock them, which is true. But yes there's a way to re-unlock again
[Sprint Samsung Galaxy S 4 General] Shaun_vip:
My OTA to OD2 did NOT relock my phone... after the od2 OTA it was still unlocked
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Are you in the US?
[Sprint Samsung Galaxy S 4 General] Shaun_vip:
Yes.
[Sprint Samsung Galaxy S 4 General] PorkMoon587:
I followed the steps in this guide and I no longer have the invalid sim. Can I use the CDMA sim that comes with the straight talk kit?

*Update:

I got ST to activate the AT&T sim card. Some tweaks and I've got sms, calls, and it shows H+ with some arrow movement but no data. Something I overlooked? Setting I fudged?
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Mobile data has to be enabled and the APN has to be correct in order to get a data icon. So anything else is network or plan related
[Sprint Samsung Galaxy S 4 General] hfl12:
Does the unlock work on OD2 or do I have to downgrade the modem ?
[Sprint Samsung Galaxy S 4 General] maurogg84:
No, because I had the domestic unlock before, after installing the new modem it removed the unlock. Which means Samsung patched the hack. I had to go back to NG2 and everything went back to normal.
[Sprint Samsung Galaxy S 4 General] adearinn:
I follow the step /

downgrade modem to MDC

running app unlock

It's done , running well

Thanks
[Sprint Samsung Galaxy S 4 General] dromango:
how can i reset the programing back to stock? i try to punch in dial code but nothing happens. I am trying to sell this phone but doesnt work with sprint after messing with settings.
[Sprint Samsung Galaxy S 4 General] daniel4653:
Odin the stock firmware.

Sent from my SM-N910W8
[Sprint Samsung Galaxy S 4 General] AkiraKanji:
i followed this info and now i cant even get service on my phone nor wifi wont connect. wth is with all the false info. i cant even see the service mode screen anymore it just keep showing all the random info even after pushing hitting the menu button and going back a few time. now my phones useless and wont connect from wifi or from the sim card thansk for nothing
[Sprint Samsung Galaxy S 4 General] AlpineMan:
Most, if not everyone here who followed the instructions got it to work. If the instructions were false info, this thread would have died long time ago.
[Sprint Samsung Galaxy S 4 General] ecs87:
I totally agree with AlpineMan's post. The process is not to blame (the user is...). If wifi wont connect its an issue with your phone, not the unlock process. And if all youre doing is hitting the menu button and going back...youre doing it wrong. Take the time to READ the instructions and you will find out IT WORKS.
[Sprint Samsung Galaxy S 4 General] antmon:
Is this sim unlock function so you can use, say in Europe, using a local sim card there? Is there also some APN setting to edit?
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
This process will unlock the phone for any compatible GSM carrier worldwide. APN is always needed for data connection
[Sprint Samsung Galaxy S 4 General] antmon:
thanks for the quick reply...will follow the instructions and hopefully is as easy as dropping in a European sim :)
[Sprint Samsung Galaxy S 4 General] Rick4175:
The odin one click doesn't work for me on android 5.0.1 it fails after aboot.mbn. Any help would be much appreciated
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Sigh.

Newsflash: sometimes OPs aren't maintained and updated. Read the thread.
[Sprint Samsung Galaxy S 4 General] chris41g:
if the poster is still active in the thread, they should be..
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Agreed.

But the OP hasn't posted on XDA for 18 months
[Sprint Samsung Galaxy S 4 General] chris41g:
http://xdaforums.com/galaxy-s4-sprint/general/info-sprint-galaxy-s4-sim-unlock-sph-t3144530

I've made a new post detailing the process I went through on [MENTION=6785017]Rick4175[/MENTION]'s phone tonight.

Maybe by putting all the information together there will be less questions, and a better place for discussion (less posts to read through)/
[Sprint Samsung Galaxy S 4 General] bthorne79:
Any one in here with the basebands NG5 or NC6 with the 720T and unlocked
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Not dopmestically unlocked, no
[Sprint Samsung Galaxy S 4 General] bthorne79:
That suxks after on a call for a little while the call gets all crackly and the other person does not hear it and it makes calls almost not worth it why I went back to this s3
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Yeah probably not the best to have a 4.3 modem with 5.0 software
[Sprint Samsung Galaxy S 4 General] Tekone:
Is anyone tried to unlock Lollipop 0D2 with this method? By downgrade the modem, unlock it and flash back to IMAXuOUT-MODEM
[Sprint Samsung Galaxy S 4 General] chris41g:
You have to downgrade the whole rom, Ssu.apk nor the secret phone commands work on od2
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
You have to downgrade if you want to use SSU, yes. But downgrade is not necessary to achieve unlock on OD2
[Sprint Samsung Galaxy S 4 General] Tekone:
downgrade the whole Rom from OD2 to NG2 will trigger the Knox? If OD2 can downgrade to NG2, I can domestic unlock and stay on NG2. Or, upgrade back to OD2 with Hybrid Modem.

Why not necessary? Without downgrade the Whole Rom or downgrade the modem, what another method for domestic unlock?
[Sprint Samsung Galaxy S 4 General] chris41g:
I'd be interested in a method to unlock while on od2.. As I've not seen anyone post any info showing how to do it.. Aside from having sprint do the international unlock, but even then the secret code app won't load on od2 either..
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Galaxy Tools
[Sprint Samsung Galaxy S 4 General] chris41g:
Website says it supports international unlock, not domestic.. And it doesn't mention whether it works on od2
[Sprint Samsung Galaxy S 4 General] ecs87:
Youve quoted it. Global unlock. US GSM supported. It DOES work
[Sprint Samsung Galaxy S 4 General] chris41g:
only for the 720T

the 720 says outside us only
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
It works.

Sheesh.
[Sprint Samsung Galaxy S 4 General] Smil3yWulf:
wat methods do we use to unlock on od2??
[Sprint Samsung Galaxy S 4 General] chris41g:
hard to know with closed source and a poorly worded website..
[Sprint Samsung Galaxy S 4 General] ecs87:
Most likely, if the Sprint device is on lollipop, itll work.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
http://idoneapps.webs.com/sprint-galaxy-global-unlock
[Sprint Samsung Galaxy S 4 General] Smil3yWulf:
i preffered dwngrade to ng2
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
To each his own
[Sprint Samsung Galaxy S 4 General] Markon101:
I got it to work after flashing my Sprint S4 to the official Lollipop firmware and downgrading the modem as specified in the directions. Thank you for all of the hard work! I do have a question. If everything is working is there any benefit to upgrading the modem? I am going to be using CyanogenMod 12.1 nightly as my ROM.

Thanks to all here on XDA who work so hard!
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Modem has to stay where it is if you want to stay unlocked
[Sprint Samsung Galaxy S 4 General] Markon101:
How I managed to use the latest stock rom to unlock

https://www.dropbox.com/s/z8jetc74j7mfgke/S4_Domestic_unlock.zip?dl=0 (Includes ROM, Modem, and Odin 3.10. Did not include the unlock utility)

Alright thank you for that information. Also, for anyone wanting to start using the stock Lollipop ROM from Sprint/Samsung (Which you can get here if you do not have it ---> http://www.sammobile.com/firmwares...) I have listed the steps to do this below.

1. Use Odin 3.10 to flash the stock Lollipop ROM to your S4. (Use AP slot and leave auto reboot and reset time on. If you run into any issues check your cable, try another USB port, and make sure Samsung Kies is not on your PC.)

2. Use the modem downgrade instructions from the OP (MDC modem file included in dropbox DL. Flash with Odin using CP slot.)

3. Boot into Lollipop and confirm that the last three letters on the baseband (in settings) read "MDC."

4. If #3 is confirmed continue the steps for international gsm unlock from OP -> http://xdaforums.com/show...

5. Everything should be working now, if you have your US GSM SIM card inserted you should no longer see an invalid SIM message (If you do see that message something above did not succeed)

(Note for #6 -> After typing *#0011# in dialer and opening the menu it may take quite a few tries entering 1 and 2 to get anything to happen.)

6. Follow OP instructions but do not bother with the build.prop and instead simply enter APN settings for your provider (Found under Settings -> Connections -> More Networks -> Mobile Networks -> Access Point Names)

7. Restart your phone if you do not yet receive service from your provider. (You may also have to tap activate under Settings -> More -> Activate this device)

I would like to add that with the latest CyanogenMod nightly (12.1) I was unable to get the WCDMA only radio mode to stick. I eventually gave up and restored a TWRP backup of the stock ROM which works very well. I tested this method using a Cricket (AT&T) SIM card.

One more thing. If you are stuck with an auth FAIL in Odin after trying the original OP method with the MF9 ROM the above method and Lollipop ROM may solve your issue. I spent many hours to figure out that Odin does not like when you try to downgrade to a lower android version, and thus fails. It left my phone softbricked, which is how I came across this simpler method for unlocking the phone. (Phone was originally running stock 4.4.2 rooted)
[Sprint Samsung Galaxy S 4 General] F_X:
Quite honestly, S4 (BOTH L720 & L720T), S5 (Yes the galaxy S 5!), Note 3, Note 4, Note Edge, S6 and 6 Edge from Sprint can be domestically unlocked....confirmed :D
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
You forgot about the S4 Mini and Mega :P
[Sprint Samsung Galaxy S 4 General] F_X:
Hahaha DAMN!! I did!! Sorry brother, but thanks for reminding me ;)
[Sprint Samsung Galaxy S 4 General] Shawn99:
Works great!
[Sprint Samsung Galaxy S 4 General] dwh1983:
Excuse me.. noob to the site, but not to the technical part of phones.. I followed every step, with the exception of the Odin one click, root no data.. I ran into several errors there, so instead rooted phone, and can't seem to get tmobile to work on my gs4 sph-l720, it has Knox on it... help???
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
1. The OP is outdated. Ignore it. Read the thread instead.

2. Quoting the OP is unecessary and considered rude. Kindly remove it
[Sprint Samsung Galaxy S 4 General] dwh1983:
My apologies. Still trying to figure the forum out. Maybe I missed something in getting my sprint sph-l720 g24 changed so that I can use my t-mobile sim card in it. How do I unlock it? Again, I apologize, I may have missed something
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Re-read #1
[Sprint Samsung Galaxy S 4 General] hellot1M:
I have gone back several pages and tried searching this thread but am still not sure..

this is an old method and was wondering if coming from pure stock, never been rooted device, and root, setup recovery, and then flash the GPE by Danvdh. would i even need to follow the process in this thread? in his description of the rom it shows,

"World phone unlocked, all network modes are available to choose from in Settings which means this build is unified"

i have searched through that thread as well and nobody seems to make any connections to this thread when talking about using their sprint device with other GSM providers.

i am not too familiar with samsung devices. i have always been LG and HTC which (excluding the G4) have been very straight foward when it came to domestic unlock. most the roms included the unlock built into the rom. i got this phone(s4) and the galaxy s5 for free and was going to give one to my daughter who is on AT&T. the s5 was really confusing when it came to domestic unlock. 90% of the forums say it cant be used on any domestic carrier because of something to do with the modem being locked in the recent updates. and the other 10% say it works just fine. while some say the methods are only for international. and when i ask to get a straight answer this one and only guy responds with the same generic reply (look it up) i have posted my own thread in the Q&A for that section and in replys to several threads and this **** is the only guy that responds with the same answer.... i was directed by one that said the s4 was much easier. so here i am :)

basically all i want to do is use this sprint s4 on AT&T running the specific rom - http://xdaforums.com/galaxy-s4-sprint/development/rom-5-0google-play-edition-lrx219-12-24-t2982384
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
1. S5 can be domestically unlocked. Contact the dev, [MENTION=319373]idone[/MENTION]

2. I doubt that the ROM has automatic unlock built in, as there are steps that have to be performed in order to enable it. But contact the dev directly to know for sure
[Sprint Samsung Galaxy S 4 General] miniandroidp:
will this work with straight talk ? My s4 SPH-L720 is not active on the Sprint network .
[Sprint Samsung Galaxy S 4 General] AndroidKing:
yes it will
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
The GSM side of Straight Talk, yes