yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 General] Agarest:
Thanks for the suggestions, it turns out that the Tmobile service rep didnt turn on data for my account.. So if someone comes across the same issue, hopefully my situation helps. I unlocked 4 of my phones and they all work beautifully now. I get 4.5 megabits/sec down on HSPA. Not sure if thats the correct speed.

Also I am still using MDC modems, should I upgrade them back to MF9/ MJA/MK2?

Edit: Not sure why I keep having problems but today my phone has been rebooting by itself all day long. I don't think it's related to topic though.
[Sprint Samsung Galaxy S 4 General] Powerplayer1025:
If I sim unlock the phone is it going to cause me any problems if I still want to use it for a sprint. As in slower data losing signal ect. Sorry if I'm asking a newb question but I would like to do this before I upgrade my phone to 4.3 and that way it's unlocked for good for if I ever need to switch carriers
[Sprint Samsung Galaxy S 4 General] en11gma:
i have been messing around with this domestic sim unlock for quite a bit

very nice info for the *#0011#

what i got is a couple questions that i have discovered that could be important to this thread

ok when i have used a stock kernel and a tmobile rom i see there are a couple things of interest

i see in tmobile rom's modile network settings

there is an option not avail to us called RUIM or NV

RUIM is to read SIM Cards and NV is for CDMA reading

when we look in "settings>about phone>phone status" and we look at the phone number you can see it is incorrect there.

if we had an RUIM / NV option i think it would populate that phone number in that "phone status" area in settings

next point

if you look at the tmobile galaxy s4 guide to sim unlock they say

i see ours is set to on by default to

what happens if we turn ours to off like that guide?

shouldnt it be?
[Sprint Samsung Galaxy S 4 General] Gambitv01:
any more ideas anyone?
[Sprint Samsung Galaxy S 4 General] laceyinez:
somehow... some way... I have made it through all of these steps and got it working. I've never done any of this before but about 3 hours later I have it.. kind of.. my wifi wont turn on and when I go to use the phone its all laggy and messed up and I hear nothing but the person I'm calling their phone does ring... does anybody have any idea how to fix this?
[Sprint Samsung Galaxy S 4 General] eagle3489:
Hi All the Gurus on XDA...

I am following this thread very closely from last few days now, and I wanted to know if I purchase a new Sprint Galaxy S4 today, would it be still possible to downgrade from MK2 to MF9, to use the method published by the original author as I guess new phones will be coming with MK2 modem.

Also do I need to have activated T Mobile Sim Card to use this method?
[Sprint Samsung Galaxy S 4 General] en11gma:
still waiting on ary response's as these are good points i have pointed out

it didnt quote the other quote about showing the t-mobile unlock method a few posts above
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
I dont think its possible yet, your best bet would to either just grab a gsm galaxy s4 or a Verizon one which I was told is already unlocked to be a world phone
[Sprint Samsung Galaxy S 4 General] eagle3489:
Thanks for your advice.

Today after buying the phone It is on MF9, now do you have any idea how to downgrade to MDL?

I did downloaded the odin and the firmware but do not know that should I select PDA from ODIN or bootloader.

Any help would be great
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
You download the .tar place it in the PDA selection box also there are a ton of guides floating around on xda just do a quick Google search
[Sprint Samsung Galaxy S 4 General] laceyinez:
After another whole day I seem to have everything working except for MMS

I had tried this before almost sucessfully but no wifi and the dialer was lagging.. went back to stock and started over ... I can't get into my hidden menu this time AT ALL.. but I guess the settings stuck even after I went back to stock.. I've verified hiddenmenu.apk is present and I changed the setting from OFF to ON with root explorer.. still no dice and I have no idea what I did differently the first time.. so hopefully everything was done correctly the first time because I cannot get back into it... I wish I could.

Any ideas on what to do about my MMS? It's worth noting that at my house I barely have service with t-mobile I am(now) realizing.. do you think that could be a reason I can't download the pictures I get?
[Sprint Samsung Galaxy S 4 General] eagle3489:
Hi,

Thank you for providing this guide.

I am able to complete step 1 & 2 but still after entering 0011 number on dial pad, I am getting message Service Menu - No Service.

Can you please tell me what else I might need to do except enabling efs... to ON and entering sys.hiddenmenu.enabled =1

Thank you in advance.
[Sprint Samsung Galaxy S 4 General] eagle3489:
How did you verify hiddenmenu.apk was there in your phone? and are you using Sprint Galaxy S4.

---------- Post added at 06:17 PM ---------- Previous post was at 06:00 PM ----------

Can anyone please help me on this?

I have Sprint Galaxy S4, downgraded to MDC. I have enabled efs.. to ON and even added a line in build.prop as sys.hiddenmene.... = 1

But still when I press *#0011# nothing comes up.

It shows ServiceMode -- No Service.

I desperately needs this, can anyone please help me out.... If anyone is near Hayward, CA I am even ready to meet and donate you, if you can help me sort this out.
[Sprint Samsung Galaxy S 4 General] jmb2024:
I'm having a problem completing step 6. I can't change SIM CLASS CONTROL to UMTS. It stays GSM after I select UMTS. I saw someone else had a similar problem, but they weren't running a stock rom. I'm rooted and regularly use CM, but I flashed back to stock and downgraded to MDC before doing any of this. I'm using an activated Net10 AT&T SIM. I can provide any relevant screenshots if requested.
[Sprint Samsung Galaxy S 4 General] Gambitv01:
can somebody cant change bip block and goes to no service then emergency calls?
[Sprint Samsung Galaxy S 4 General] pennypimp:
hello-

Little history. I have an s4 that when I got it was stock and was on 4.3 mja. I'm with at&t so I wanted to unlock it. At first I rooted the phone, then put sacs rom 4.3 on it because I saw a thread where some guy was saying you could put in your own apn but I could never get it to save.

I read numerous posts saying once you took 4.3 ota you couldn't downgrade the modem but I found this post here and I flashed the tar then from the first page of the international lock I flashed the mdc modem file, followed that guide and no more invalid sim message.

Then I followed your guide here (thank you). I put my at&t sim in and using these apn settings here I was able to get it working with voice and text but no data. So I went back to settings and just for sh*ts and giggles, chose "automatic" and viola! I had data. Everything was good (except for voicemail) until I re-rooted the phone and I lost data for some reason.

Well, I decided to re-install sacs because I didn't want to get nagged about the OTA and still have the same problem. Actually, it's worse, because now my voice signal is always dropping.

So, I re-flashed the stock tar *and* the modem file thinking this would "reset" everything but it appears that nothing has changed and the changes made in the hidden menu are the same.

So I'm not getting any data and I'm wondering what happened.

My phone right now is on 4.3 and mdc baseband. I think I may have screwed up a setting in the hidden menu but I'm not sure. Is there any way to reset this and do it over?

Sorry about the tome but I thought by providing as much info as possible it might help and also want to let anyone know who took the 4.3 ota you can unlock your phone because there are a lot of posts saying you can't do this.

tia
[Sprint Samsung Galaxy S 4 General] Bummym:
Question about APN Setting

i got unlocked my sprint S4 for world GSM.. i used it when i was abroad... when i came back and try to use it with T-Mobile it did not work and then i followed the steps from 5 to 13...i was able to get work my Voice/text ...now i see step no. 12 says to do something with APN Settings but somehow i can't do any thing as i can't find where can i go to change my APN... i checked in More Network - mobile Network i don't see option for APN...Please some one help me what to do ??? I am a newbee....I did download APN Seetings from Google Play Store just to let you know..
[Sprint Samsung Galaxy S 4 General] nicotheandroidguy:
You have to flash a custom gsm rom like a international ROM from the GT-i9505 or a T-Mobile ROM since they don't require a lokid kernel you can use only T-Mobile and GT-i9505 ROM with out needing to seperetly flash a Sprint kernel it will give you a option to modify apns. Or you can root your phone download a app called apn manager pro it costs $1.39 but it is well worth it and if you decide to get APN manager pro you'll need to convert it to a system app the link for it is here https://play.google.com/store/apps/details?id=ale.android.apnmanagerwithanimation

---------- Post added at 09:38 AM ---------- Previous post was at 09:33 AM ----------

If you still get AT&T voice and text then it is the APN so follow the instructions I just gave out in my last post and that should help you get the right apn. If you don't know the AT&T APN then just Google AT&T HSPA+ APN.

---------- Post added at 09:39 AM ---------- Previous post was at 09:38 AM ----------

Try to just skip that step and to continue with the rest of the unlock.

---------- Post added at 09:42 AM ---------- Previous post was at 09:39 AM ----------

Even thou the service menu says no service ignore that and press pysical menu then the virtual back button then menu again then key input type in 1 and then continue with the unlock.

---------- Post added at 09:46 AM ---------- Previous post was at 09:42 AM ----------

Yes your probably missing the MMSC part of the APN which handles MMS for T-Mobile it is http://mms.msg.eng.t-mobile.com/mms/wapenc

Copy and paste that in to the MMSC field of the APN.
[Sprint Samsung Galaxy S 4 General] fivezerosixzero:
I've completed all the steps but when I put my Net10 APN settings in I get absolutely no signal. If I use the previous Sprint APN settings, I get signal.

NAME	NET10

APN	tfdata

MMSC	HTeeTeePee:// mms-tf DOT net

MMS PROXY	mms3.tracfone DOT com

MMS PORT	80

MMS_APN	tfdata

Tried on rooted stock rom and pacman rom.

Will provide more information when I know what to show.

Thank you for this guide.

New user, can't post links, you can figure what I meant ^

edit: I missed this line from the guide; You will also notice the "Invalid SIM" message finally gone.

Will fix then report back.
[Sprint Samsung Galaxy S 4 General] Agarest:
Download APN Settings Shortcut from Playstore.

Add the widget to your home scrren. (Important...)

If it is not editable. You need this next step.

Download Build Prop Editor by JRUMMY from Play Store.

Click the Pencil button (Edit)

Add these lines at the bottom

ril.sales_code=LOL
ro.csc.sales_code=LOL

You should be able to edit and add APNs now, Launch your APN Settings Shortcut Widget again and add the APN settings for the carrier you are using. (The + button on the button)
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
you took the ota and you have the knox bootloader and was able to unlock your phone?
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
So before I try this, why exactly you do this on mja firmware? What step would I be stopped at or would I get through it all but no signal?
[Sprint Samsung Galaxy S 4 General] pennypimp:
Yes. Just follow the link I posted. It contains a stock 4.3. Use odin to flash your phone *edit* I did root the phone before doing any of this stuff-I don't know if it makes a difference or not. Then go to the first page of the international unlock thread and flash the mdc modem file. Follow the instructions on the international unlock thread, then follow the ones here.

It worked for me. I don't know why there's so many that say it can't be done. It made me hesitant to try it, but it works no problem. I've since re-flashed it 2x because something got screwed up and I can get voice and text but no data, which was working before I re-rooted the phone.

---------- Post added at 06:47 PM ---------- Previous post was at 06:19 PM ----------

Thank you for the reply. I followed your directions and found hspa+ apn (actually I tried that one previously), saved it, but still have no data and if I get a connection, it drops constantly.

Now, I have wiped the phone, re-flashed stock 4.3 tar and MDC modem bin and repeated the steps in this guide and I can say that after following the steps, when I reboot, I am not able to have it default to the correct mode under "preferred network mode." It always ends up LTE. Hopefully, that may provide some insight. If I select GSM/UMTS myself then voice works (not really, I always lose connection after about a minute and drops and reconnects constantly).

I also have the problem where I can't change the SIM class. It stays stuck on GSM. When I first did this I could change that, now I can't.

The weird thing is I had it working at first and all I did was root the phone again and I haven't been able to get it working since.

sacs 4.3

uknownforce kernel 3.4.0

MDC baseband

tia
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
I followed the directions but I didn't root the device and I got no bars at all should I try again but root it?
[Sprint Samsung Galaxy S 4 General] pennypimp:
I'm not well-versed in the technical aspects but the main thing is, if you followed the first post, then did the international unlock process, you would know it was done correctly if you're no longer getting "invalid sim" message when you stick non-sprint sim into the phone. Then you follow this guide.

As you can see, I'm a bit lost on this right now myself.:silly:
[Sprint Samsung Galaxy S 4 General] nicotheandroidguy:
Try flashing A Tmobile M919 or International rom for the i9505 only it handles GSM much better it should also let you save and edit your app.
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
Yeah I got the phone to actually get rid of that message I'm going to try again in a few hours
[Sprint Samsung Galaxy S 4 General] pennypimp:
Thank you again, but I would have no idea which one would be safe to use. I thought from reading posts around here you had to make sure the kernel was for l720??? Sorry I'm pretty nub on this stuff.

Is there any way to just reset the hidden menu stuff? I'd like to just wipe the phone, throw the 4.3 stock on mdc modem flash again-even though I already tried my hunch is that I screwed a setting up there somewhere along the line because I did have this working at one point.

Or, if you could point me to a rom to try you think would be safe, I'd appreciate it.

tia
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
http://xdaforums.com/showthread.php?t=2539794 this is what you need, and to reset everything jst do ##72786# did it for me
[Sprint Samsung Galaxy S 4 General] pennypimp:
Thank you. I will look into that.

I did use the 2nd piece of advice since I went ahead and wiped my phone and re-installed that stock image. When I put ##72786# into the phone I flipped a bit because I got the "invalid sim" message again but I just used the unlock tool and it worked. So I re-did domestic unlock procedure (I was able to select UMTS in the sim class menu this time) and I rebooted, put in an apn, selected GSM/UMTS and it's now working again with hspa+!

Now that it is working ,I'm leery of trying another rom because I'm not sure I want to go through all that jazz again.

Thanks again for the help and thanks to all who responded and the OP.

Now it's searching the thread for the voicemail dilema.
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
I'm still not getting signal bars but the phone is reading the sim it has my iccid number. BTW its not activated yet
[Sprint Samsung Galaxy S 4 General] Bummym:
Thnaks for your advice.. but some how it's not working for me... i tried to edit in Build Prop Editor..but it's kept saying Failed....

So Still i am without data.. as i can't find Where to go and edit my APN Data...Please help me to resolve my Issue....
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
are you using a stock touchwiz or a custom one?
[Sprint Samsung Galaxy S 4 General] M1k3Carson1369:
So here's something I thought was weird... without having followed the thread for awhile, tried on one on mk2, couldn't get to the menus. Anyway, flashed mdc, got into menus, took all the steps, didn't work. Had to use my z3x in the end.

ANYWAY, later on, got one still on mf9, so I thought great! Went through the steps, didn't work, flashed mdc stock, repeated steps, still didn't work...

Ended up buying that one, in trade to replace the screen on on a friends t mobile s4, since I couldn't unlock it.

NOW i sold my s3 and am using the s4 on sprint... still on mdc and data kinda sucks... wanna flash a higher modem, but would really like to unlock it before going any higher than mf9... any idea if there's something out there from preventing this working anymore?

Again, this one WAS On mf9, is back on mdc now...
[Sprint Samsung Galaxy S 4 General] nicotheandroidguy:
No you don't as long as its a T-Mobile or I9505 ROM if it is a AT&T or Verizon ROM you need a Sprint kernel. I'm using a I9505 ROM with its kernel with no issues.

---------- Post added at 07:32 AM ---------- Previous post was at 07:30 AM ----------

If you change Roms the settings stay the same. You might need to redo the APN or if it's a I9505 ROM your APN might be preloaded.
[Sprint Samsung Galaxy S 4 General] en11gma:
wrong!

when you "INSTALL" these roms (are) changing the areas where we set out settings with *#0011#

if you flash a tmobile rom it will for sure change the SHA = Off in UMTS network lock.

so yes sometimes you need to do the ##72786# to reset that area but a "real" reset is ##786# and that puts phone close to a factory reset

when we enter those dialer codes are they reading a "master script" somewhere that puts in some kind of default values into those *#0011# areas?

if so where is it located as i want to change the default values so when i do ##72786# it puts in the values like i have already followed this guide

where or how can we do this?

thanks

edit one more thing

at the end of the steps it says "manually manually manually reset"

what the heck does that mean?

pull battery

or hold power buttom in until reset shows and then press reset as the option?
[Sprint Samsung Galaxy S 4 General] jmb2024:
Thanks for the tip. I skipped it and unlocked the phone, but it works using GSM only and not WCDMA only. I'm stuck on Edge. Any suggestions?
[Sprint Samsung Galaxy S 4 General] en11gma:
i still need my questions answered from the post above but i have to agree with you WCDMA does not work

i can see that the s4unlock.exe deletes the WCDMA items when i check with QPST explorer

i did a backup of before and after i ran the s4unlock.exe and you can see it is deleting the WCDMA area.....

maybe this is how the unlock.exe works but my wcdma has never worked since i ran the unlock.exe

i have sprint sph-l720 with stock mja with a ##786# and ##72786# i then downgrade the modem

at this point i start QPST and make a backup

i then do the s4unlock.exe and reboot the phone

i then run qpst again and make new backup

i then run notepad++ with the comparison plugin and check for differences

DEFINATELY the WCDMA area is getting "Deleted" NOT "Changed"
[Sprint Samsung Galaxy S 4 General] Bummym:
Actually i don't know... i got this unlocked in India and i was able to use over there with GSM all voice, text and data... i came here and i was trying to use it with t-mobile it did not work...then i followed the steps form 5 to 11 and it started working Voice & Text ...but no data... Steps 12 onwards doesn't seem to working ...somehow i can't find APN Settings in the phone anywhere...i was reading onliine that i have to root my phone to change apn settings...as i am newbee i don't know what is the right path to follow...other strange thing when you go to about device it shows the old phone no and i can't change it either...I would really appreciate if some one can guide me through this mess...Big Thanks in advance...
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
I'll send you a couple links when I make it home right now I'm stuck I'm sprint data terribad

---------- Post added at 01:27 PM ---------- Previous post was at 12:46 PM ----------
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
to all the naywayers saying you cant unlock after you upgrade to 4.3 using the ota method is wrong, i just did it successfully
[Sprint Samsung Galaxy S 4 General] pennypimp:
Well I flashed a tmob rom hyperdrive and it seems to be holding on to the signal better. It's a little buggy on the lock screen so I might try something else. Voicemail is good, just punched in my own number under settings and of course I used the apn of my htc one. Seems to work.

My understanding is with this phone on another network, I'm never going to get above hspa+.

I have a friend with a s3 and when she's running hspa+ it's faster then what I'm getting but it works for the most part.

Just wish I could figure out a way to get data faster but other than that, it's good.

Of course the people at Sprint said there was no way this could be done.

:middlefinger::rolleyes:

*edit* Not able to send MMS. Digging further...

*edit 2*

Just noticed don't have field for MMS protocol in my apn list. I suspect that may be an issue.
[Sprint Samsung Galaxy S 4 General] Gambitv01:
i put a simple mobile sim it says searching then it says t-mobile then it goes back to emergency calls any ideas i get signal for like 3 seconds?
[Sprint Samsung Galaxy S 4 General] pennypimp:
What rom are you using?

I was told to try a tmob rom and it made a difference for me with regards to that issue.
[Sprint Samsung Galaxy S 4 General] rmc16:
For the VoiceMail issue try and use my post #140: http://xdaforums.com/showthread.php?p=48541517#post48541517
[Sprint Samsung Galaxy S 4 General] Gambitv01:
i am using the SPR-L720VPUAMF9-20130626162512 Stock Rom
[Sprint Samsung Galaxy S 4 General] Bummym:
Android 4.3 Update problem After unlocking to tmobile

Guys i still have the problem to get start data working on my Galaxy S4 SPH-L720 which i posted a day ago and now the second issue comes on my way i can't update my phone to Android 4.3 Lattest update..phone downloaded the update and i apply it...it stuck in between, give me error and restarted the phone..now i don't see update any more i go to system update and update samsung software it shows me my phone is up to date but in about device is shows android 4.2.2 ..what to do now ???
[Sprint Samsung Galaxy S 4 General] nemofbaby2010:
First don't ota update Knox ducks there's a thread on the forums that tell you how to do it
[Sprint Samsung Galaxy S 4 General] imbmiller:
I just updated the guide to uncle build.prop edits.

I was running Omnirom 4.4.2 BUT I couldn't receive incoming calls. Most likely due to mf9 not being super compatible with the new KitKat telephony stack. I rolled back to a 4.2.2 sacs v8 and it back to flawless. My experience has been that tw based roms work way better than aokp/sp roms.

Any other edits needed for the guide?

Also sub question how are you guys installing jfltetmo roms on jfltespr? Editing the zip to not assert check or what?
[Sprint Samsung Galaxy S 4 General] imbmiller:
If you pm me details I'll add it to the guide for the benefit of the masses
[Sprint Samsung Galaxy S 4 General] imbmiller:
Idk why you are messing with qpst, I can confirm that wcdma (a type of gsm) I can confirm that this does work for wcdma (technically it throws it into umts :3 for tmobile but will change depending on carrier) as it is the option selected in my hidden menu and shown in the network settings in Android. By definition qpst is outdated by 6-10 years anyway and probably doesn't support the baseband chipset in the jfltespr.

You probably aren't in a major city with reformed 1900 mhz spectrum. Or hspa + doesn't work when gsm only is selected.