yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
That's because you need to be on OD2 or lower
[Sprint Samsung Galaxy S 4 General] Hamza khan2014:
Hi, sorry guys if it sounds dumb but i am new here. I have Samsung s4 sprint SPH-L720 but i don't know if my phone is T-mobile as there is no logo on start screen, my question is can i still try this method if my phone is sim locked please?

I am in Asia and phone came from US.

Thanks u all guys
[Sprint Samsung Galaxy S 4 General] dennis5pia:
You say you have a sprint S4 and then say you don't know if it's a T-mobile model.. You're right, is dumb.

SPH-L720 model is from sprint. T-mobile model is M919.
[Sprint Samsung Galaxy S 4 General] Hamza khan2014:
Thanks dude for replying :p

So basically i cant use this rom on Sprint right? :confused:

---------- Post added at 04:37 AM ---------- Previous post was at 04:35 AM ----------

I mean this http://xdaforums.com/showthread.php?t=2486134
[Sprint Samsung Galaxy S 4 General] dennis5pia:
That's for Sprint model L720 so it should work.
[Sprint Samsung Galaxy S 4 General] Hamza khan2014:
I am getting FAIL error like in image..
[Sprint Samsung Galaxy S 4 General] dennis5pia:
Are you opening it with administrator rights?

According to instructions you have to right click on the file and open it as administrator.
[Sprint Samsung Galaxy S 4 General] Hamza khan2014:
COLOR="Silver"]

---------- Post added at 01:35 PM ---------- Previous post was at 01:34 PM ----------

[/COLOR]

Yes I did and changed ports as well :(
[Sprint Samsung Galaxy S 4 General] dennis5pia:
Well, I see a lot of user with the same error.
[Sprint Samsung Galaxy S 4 General] ecs87:
It's failing at aboot. That's the bootloader. Apparently it's a different revision than your current one so you aren't able to use it hence why Odin fails (Odin won't randomly fail...not too sure why people think so). Find a proper root package for your firmware (or I highly suggest leaving the phone alone if you don't know what you're doing as you can brick your working device).
[Sprint Samsung Galaxy S 4 General] cajunlibra:
Has anyone gotten the L720 to work on Google's Project Fi with a data only SIM? From what I've read, devices must work on TMobile in order to be compatible with Project Fi.

I currently have the most recent update of the GPE Rom on my GS4. I'm looking for data only as I have a Pixel subscribed to Fi.

Thanks in advance.
[Sprint Samsung Galaxy S 4 General] wildpig1234:
So if i want to go back to using sprint data/voice again, after i insert my sprint sim card again, what do i do? Select CDMA, common, next page, next page, pref mode set, cdma lte only?

Also after doing *#0011#, to get into the next menu, i have to do input select, Q. Then input select ,0000 to get into that menu. after that i can select 1 or 2 for utms or cdma. inputing 1 or 2 directly into input select doesn't work for me

I wish there is a way to allow for selecting gms and cdma without having to go into this menu again...
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
Hi I'm on a custom ROM with SGH-M919. I use mobile uncle to change the setting I believe you're referring to. The only hitch is you may have to reselect your setting when you reboot. Not sure if there is a way around that

---------- Post added at 11:15 PM ---------- Previous post was at 11:12 PM ----------

I only need to key input Q0 to get into the menu on stock rom
[Sprint Samsung Galaxy S 4 General] wildpig1234:
So i did finally manage to get the sim freedompop sent me to work on my sprint s4!! The sim they sent me is for AT&T

I did all that unlocking setting etc at the beginning of this thread.

after doing *#0011#, i have to press the left menu key at the bottom of the phone and choose back and choose back again and then input select, Q, then input select, 0000 to get into the service menu....

Also even though after doing the above, i got the APN menu under network, the APN page is initially blank. The tricky thing is that you have to press the left menu at the bottom of the phone and select new APN.

So thats done.! finally got data on the at&t sim card from freedompop too! I know my phone did work with international sim for voice before. I am almost certain it will also work for data now too...

If i get time, i might try to upgrade so that it will also do 4g instead of just hsdpa but that's good for now...
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
i have done complete wipes with twrp including internal and formatted data the unlock still sticks. Im using sgh m919. this has to be one of the most useful threads for the s4
[Sprint Samsung Galaxy S 4 General] wildpig1234:
Now, to get 4G LTE for Att and others, what's everyone experience with following this:

https://xdaforums.com/galaxy-s4-sprint/general/l720-l720t-gsm-unlock-att-tm-t3189063/page7

it says you have to upgrade to m919 rom? so that will wipe my device i guess? has anyone figure out some other way so not to cause it to get wiped?

Also, M919 rom is that like a tmobile only rom? would this disable the ability of the phone to use cdma?
[Sprint Samsung Galaxy S 4 General] wildpig1234:
So you saying you do have a sprint s4 that's now getting LTE with at&T?

so that thread about getting LTE to work also is false?
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
I have a SGH-M919. Originally purchased as a net10 phone. now it is running JFLTETMO stock and custom firmwares with ATT go phone service. Ive used JFLTEXX with no problems also. sorry if ive caused confusion. I myself wouldve already attempted to flash the rom by now and had my answer whether said thread was false or not.
[Sprint Samsung Galaxy S 4 General] wildpig1234:
I am assuming then your s4 is actually a gsm ver without any cdma support?
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
it is likely. it uses LTE WCDMA GSM. Did the Tmobile Rom Flash?
[Sprint Samsung Galaxy S 4 General] wildpig1234:
Didn't try to yet. Don't want to get my device wiped. Also i need it to work with sprint so i don't know if i want to risk it unless someone else on here can confirm that after flashing that it would still work on sprint.
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
I did a little googling out of boredom. It appears your unit is a global phone. It uses a sim. If the rom works great yet your device will be wiped. If it bootloops on T-Mobile screen try a factory reset from the stock recovery. I always end up having to do a reset even when I completely wiped the phone with TWRP recovery before flashing back to stock. Also you will most likely need to flash the ROM twice to get the modem to stick unless you have the modem bin as a separate file to flash. If all of this doesn't work a complete TWRP backup to your SD card of your current ROM and your current recovery img in tar. Format should be kept close by. You will be able to bring your unit back to where you had it even if you brick it. I hope someone will pipe up and give you a more clear answer. Although we're on old units and most of the info is out there. It's just do dated between 2013 and 2015.
[Sprint Samsung Galaxy S 4 General] wildpig1234:
I wonder if there's that separate modem bin somewhere around here. maybe on the tmobile s4 subforum?

Also my phone is still on android4.2..2. if i flash that rom i guess it would also update the os?
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
It would flash a complete ROM. I wonder do you have knox ? I've read once you flash over 4.2.2 it's impossible to flash back to it. Something to do with Knox. That's definitely worth a Google. My phone will only let me downgrade to 4.4.2. I don't have the link though there is post with a download of the latest tmo firmware. It's possible to extract the modem bin and hlos bin from that. Then one could flash the entire ROM with Odin then reboot back into download mode and flash only the modem and hlos bin. If you attempt to flash the ROM and it doesn't work Odin will fail before making any changes to your phone and it will be necessary to manually shut your phone down and reboot.
[Sprint Samsung Galaxy S 4 General] wildpig1234:
That's why i am very hesitant to try it since right now its working just fine with my sprint 4g as well as with hspa+ which is like 3G+ speed (5Mbit/s)... I wonder how fast att 4G is around here. around here sprint downgrade their 3g speed to like 200kbit/s up/down speed.
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
I understand completely. When you mentioned you were still on 4.2.2 . There are many folks kicking themselves for voluntarily putting Knox on their phones. TMO has a 4.2.2 ROM. Are you running a custom Rom
[Sprint Samsung Galaxy S 4 General] wildpig1234:
I dont think i am on any custom rom. Still have a lot of the samsung and sprint junks on there....lol...
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
Not sure if your bootloader is current enough, but there is a custom ROM 7.1.2 Nougat available for your S4 variant. I use it as a daily driver on my S4 and it blows stock out of the water.

Announcement from -+BB+-: The Android Open Source Project (AOSP) 7.1.1 for Galaxy S4
[Sprint Samsung Galaxy S 4 General] wildpig1234:
Maybe i will get a cheap sprint s4 if i can find one on ebay to experiment with it...
[Sprint Samsung Galaxy S 4 General] Danny1976:
Did you get it solved?
[Sprint Samsung Galaxy S 4 General] thedeceivingeye1:
I've been having problems with this unlock and the others on the SPH-L720 category, but to anyone coming to this unlock only recently, you MUST reboot after setting "pref mode" to GSM/WCDMA or it will automatically set back to "other" or "LTE Only" for whatever reason.

Also, if you keep getting "Unfortunately, com.android.phone has stopped" every few seconds on the M919 touchwiz rom, just keep clicking OK and do all the steps until the GSM/WCDMA pref mode set, and REBOOT like it says so. Then, the phone app will stop crashing, and only then can you continue without the popup to successfully unlock. I can confirm this after unlocking about 4 times. (after accidentally losing it 4 times, :p)
[Sprint Samsung Galaxy S 4 General] Danny1976:
Is there a way to install LineageOS 7.1.1 and still get the phone to work unlocked Domestically? I can get it working Domestic, but on Lollipop or lower. I have the SPH-L720 Sprint. Is Sprint unlocking this now Domestically, since they are old now?
[Sprint Samsung Galaxy S 4 General] Gigi70:
Hi how the heck yo can change the fake security to on nothing works
[Sprint Samsung Galaxy S 4 General] DizturbedOne:
would like to know as well, still have an d S4 kicking around
[Sprint Samsung Galaxy S 4 General] rawa.o.ali:
Issue

when i create a shortcut of apn settings shortcut its close quckly . so whats solution ??

thanks for helping me . i want unlock it for useing international sim card
[Sprint Samsung Galaxy S 4 General] MOCKBA80:
I have SPH-L720 with Phil's Touch Wiz bootloader and L720VPUFNAE baseband and software version, so it is Android 4.3.

*#0011# method doesn't work for me. I never get to SERVICE MODE MAIN MENU.

Is there a simple way considering that my bootloader is unlocked to just flash MDC MODEM, unlock the phone and flash back LOS 14.1?
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
Hi you will need to flash the 4.4.2 firmware, then flash 4.2.2 modem. there are other dial codes that should get you into service mode if you continue to have issues after flashing to the above setup I listed. once your phone is unlocked you can update to the latest stock firmware to get your baseband and bootloader current. the unlock will continue to work even on custom roms. hope this helps
[Sprint Samsung Galaxy S 4 General] MOCKBA80:
I actually made a bit of progress. *#0011# thing works, only I need to key input and put a capital Q and then and key input and put 0000 (four zeros) to get to Service Menu; or I could do adb shell broadcast to bring it up. That is on either [ROM][NG2] Stock Rooted NG2 or [ROM][MK2] 4.3 Stock(ish)v06 but in both cases I cannot change SHA-256 setting.

Is there 4.4.2 ROM that works for all this?

[ROM][NG2] Stock Rooted NG2 was my best hope, but it still has L720VPUFNAE baseband that doesn't work for unlock. Could I flash earlier modem without Odin and/or without loosing my custom bootloader?
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
L720VPUAMF9 is 4.2.2 baseband. donload the firmware and extract the modem. I think your model will let you use the 4.3 firmware you will just need to get the modem from firmware L720VPUAMF9. I dont understand your question about a custom bootloader.
[Sprint Samsung Galaxy S 4 General] MOCKBA80:
Could I just get MF9 MODEM FIRMWARE ONLY NO BOOTLOADER INCLUDED and flash it over any ROM?

Is it possible to flash that firmware with anything other than Odin?

If I flash MF9 firmware from the link above with Odin my bootloader should stay the same, right?

Just want to confirm first since I have not used Odin before. Any pointers to good guides on how to do it with Odin (if Odin is my only option)?
[Sprint Samsung Galaxy S 4 General] jonpjingleheimler:
Im not completely familar with your model s4. though you can flash just the modem from MF9 over your existing 4.3 in most cases you will need to flash the modem twice before it sticks. in Odin, you would uncheck the autorestart box and manually reboot back into download mode after you get the message "PASSED" in green. you should be able to use any Odin most would suggest you use the latest version http://www.**********.com/download-odin-tool-for-samsung-galaxy-devices-all-versions/
[Sprint Samsung Galaxy S 4 General] veronicadavis:
Unlock Mobile

Nice. Will try the same methods for my T-mobile. However, there is another method to unlock a T mobile without flashing a new ROM. All you have to do is share the device's IMEI number and receive an unlock code. This code can then be used to unlock the smartphone.
[Sprint Samsung Galaxy S 4 General] user-747:
Does anyone know why I must be on a stock rom to unlock L720? What is so special about stock rom that makes unlock process work?

Can unlocking be done from LineageOS?
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
If you must be on a stock ROM to unlock it, then obviously no, it cannot be done from Lineage. Just do the unlock and then flash your ROM
[Sprint Samsung Galaxy S 4 General] user-747:
I did not ask 'Should I be on stock Rom or LineageOS?'. I asked: 'WHY should I be on stock ROM to unlock?' But thanks anyway for the answer I did not ask for.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
You asked "why must i be on stock ROM?"

If you already know that you must be on stock in order to unlock it, then it is pointless to ask if it can be done on Lineage, because you already know the answer will be No
[Sprint Samsung Galaxy S 4 General] user-747:
Thanks again for NOT answering my question.

I do not know if I must be on stock. All I know is the recipe for unlocking requires stock.

Read the question, learn some English, understand the question, take some logic classes (in college). that's my best advice.

'why must i be on stock ROM?' is still unanswered.

I am not expecting a religious answer: 'Do this because, it works'.

I am looking for more substance something like: 'Stock software provides the means to update Qualcomm chip etc etc...'
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Learn some English....? That's funny, since English is my native language and based on the way that you are typing, I can tell that it is not your native language.

I responded to you exactly the way that a native English speaker would, because the correct English interpretation of what you said is that you already knew that stock ROM was required for the unlock. In English, that's what "why must I be on stock ROM?" indicates.
[Sprint Samsung Galaxy S 4 General] user-747:
This is the best advice I can provide you with:

https://www.dictionary.com/browse/why?s=t

'why' solicits the reason, not the evidence.
[Sprint Samsung Galaxy S 4 General] Lupupa:
Hey I'm trying to choose DM/DUN over HSIC on my Samsung Galaxy s3 sgh-t999 4.1.2v using *#9090# isn't working, what do I do
[Sprint Samsung Galaxy S 4 General] cautious911:
Hey guys using the guides I've managed to unlock 5 sprint galaxy s4. At mvnos and T-Mobile mvnos will get h+.. But I must say be careful with Knox when you trip the Knox you will get the red and yellow lettering on your boot screen but one of the sprint gs4's I've done had it but nothing happened
[Sprint Samsung Galaxy S 4 General] MasterSe7en:
Ok, so has anyone ran into the same issues as I have?

Basically the first unlock method in step one seems to have worked, so i dont get invalid sim error anymore, however, after following the steps mentioned as best i could, and im pretty sure i followed them perfectly, however still no domestic sim unlock, the only thing i fear is that when i got the phone, someone had newly updated it to 4.3 OTA Which was MJA i believe? not 100% sure i forget but i can check if needed, so i downgraded the baseband to MDC, so all the hidden menus and everything work, but for some reason it doesnt want to register the domestic sim

Oh also, is it ok to use MDC baseband? i cant restore to stock MF9 anymore since they updated it to MJA/4.3 i cant downgrade, anytime i try i get an error writing the aboot, then i have to use odin and write philz touch recovery just to get back into android....im sure im just missing something, but can anyone confirm they unlocked AFTER doing stock OTA update? also just an FYI i dunno if this applies to the S4 but i do know it does to the S3 for a fact, if you previously used the *#197328640# method to unlock before, if you updated to 4.3 OTA stock, you will lose your unlock, and i havent figured out a way to reunlock it because everytime i try to downgrade the baseband, when i boot back up and go into settings, unless its the stock baseband that belongs, it keeps telling me unknown version on the baseband.

And last but not least, does anyone have a MF9 modem only in a flashable zip please? everything i seem to find is an Odin file, however, i cant flash it since the new bootloader wont let me :( please haaalp

EDIT: WHHEEWWW Ok i finally got! for some reason, the step where im supposed to go into CDMA>3rd page of COmmon, well everytime i was selecting GSM/WCDMA Only, if i didnt reboot, it would keep reverting it back to stock settings. SO right after i set that, i just reboot, and finished the rest of the steps and it works great, now my other question is, will LTE work for att?
[Sprint Samsung Galaxy S 4 General] laoh:
Hi, I got the domestic unlock to work and my phone's on Tmobile.

But I have a different request. How do I get this phone to work on Sprint again? I put the Sprint SIM back and selected CDMA/LTE but only voice and SMS parts work and I cannot get any data. Thus far, this has been a one way journey. I've been using this Sprint unlocked GS4 on Tmobile for a month now but now I'm ready to buy a Tmobile GS4 so I can get Tmobile's LTE (my area supports it), so I want to sell my Sprint GS4 but in it's current state, I won't be able to sell it.

Is there a way to get back to the way it was. It's really not possible to backtrack the steps since I don't know the original settings. Any help would be great. Thanks!
[Sprint Samsung Galaxy S 4 General] MasterSe7en:
you should just be able to go back into the 3rd page of common in cdma and pick option 8 and change it back to what it was, which was LTE/CDMA i believve
[Sprint Samsung Galaxy S 4 General] laoh:
Does this also have to do with APN settings? I used HiAPN to set Tmobile APN. Does something similar need to be done to set Sprint's back (and HiAPN or other APN setting apps doesn't directly set Sprint APN from what I've been toying with).
[Sprint Samsung Galaxy S 4 General] cautious911:
You try changing back to sprints lte APN?? And question I'm running T-Mobile as well on the sprint gs4... Do you get a lot of dropped calls?
[Sprint Samsung Galaxy S 4 General] imbmiller:
Yes you have to switch back to sprints apn in order for sprint service to work. Also please make use of Google as this was literally in the first link.

Sprint US APN Settings

NameSprint

APNcinet.spcs

Proxyblank

Usernameblank

Passwordblank

ServerNot set

MMSCblank

MMS Proxy68.28.31.7

MMS Portblank

MCC234

MNC15

Authentication typenot set

APN Typedefault

APN protocolIPv4

I also changed the guide to reflect my poor opinion of hiapn, it seems silly to use an app as a core service for something that a shortcut and 2 minutes of typing can solve.

My experience has been that T-Mobile service is way better in Phoenix than sprint. I used to drop calls constantly on cdma and have yet to drop one on GSM with this phone.
[Sprint Samsung Galaxy S 4 General] cautious911:
That's funny bcuz on sprint mvnos here in tampa Fl no dropped calls.. But the moment I switch to T-Mobile I cant barely make it through to saying zee a sentence some times can't place a call going to try to switch to att mvno.. Net 10 right now I got walmarts FAM plan I can't complain about data but their lack of tower power..(rumors that they rent only some T-Mobile towers)
[Sprint Samsung Galaxy S 4 General] imbmiller:
Glad you got it going, I'm surprised you were able to downgrade from mja, maybe you could link to your method or files so I can check it out. I doubt that lte will work on this phone in combination with gsm. If you look at the cdma service mode menu menu it pairs lte active options only with cdma networks, so unless you want to start willy nilly flashing tmobile modem files to see if it can be activated by a hidden menu choice etc I doubt it. Plus you'd probably brick at some point since I think the sprint version has a slightly different mdm Qualcomm chip. Plus only band 1,4 and 25 are available on the sph-l720 I believe. Although again, I WISH!
[Sprint Samsung Galaxy S 4 General] cautious911:
H+ is awesome tho.. Honestly in Tampa Fl it feels slight bit faster than sprint LTE...ceptt for I'm using walmarts FAM plan till the end of the month ....switching for net10... Gj on the unlock..
[Sprint Samsung Galaxy S 4 General] laoh:
Ok, so I'm having a hard time setting the APN back to Sprint. I believe I've done all the right steps to be able to save APNs. Firstly, I created a shortcut to APN screen but it was not editable. Then I set the following in build.prop file:

ril.sales_code=LOL

ro.csc.sales_code=LOL

This made the APN screen editable.

Next I created and saved a dummy APN entry (it wouldn't save for some reason, so created dummy one so I can edit it with sprint values). But what the phone does is, specifically, the APN I saved gets deleted as soon as I enter the value of MCC = 234. Is it hardcoded into the Sprint GS4 to do this? Thanks for any help.

---------- Post added at 12:13 PM ---------- Previous post was at 11:45 AM ----------

Ok, my sprint phone is working again - voice, mms, and data are all working :)

This is what I did (hopefully will help someone). I didn't have any success adding/creating a new APN. Any APN that I saved would get deleted as soon as I edit the value for MCC. With the Sprint SIM in GS4, in the APNs screen, I hit "Reset to default". This immediately brings up 3 APNs (I guess it reads it from the SIM), which all of them are sprint. The one that worked for me is "APN0 LTE ota"... selected this one, rebooted the phone. It still didn't work but then I had to switch the Sprint service back to this phone (it was moved to an older phone I had). After I did that, after a few min, the phone automatically set some settings (message said "updating PRL" or something like that) and now data works, as with MMS. There are total of 5 APNs listed now; I had not created any manually...

Also, I didn't not have to "revert" anything I did as part of original 3-14 steps that are outlined on the first page. It seemed like it was all in the APN setting to get Sprint data working again on this phone.

So all in all, this is what this mod will net us: a GS4 that's completely compatible on Sprint LTE (naturally) and which allows you to use it on othe networks with HSPA+. Awesome.
[Sprint Samsung Galaxy S 4 General] natan12:
is there a way to downgrade from MK2 to be able to unlock the phone??