yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 General] Supertacomonkeyexplosion:
Why are people staying on the downgraded modem? Match the modem to the system build and try MMS again. The service menu has nothing to do with the MMS. Other than unlocking the phone with the instructions in the OP, I wouldn't touch anything in the service menu.

sorry, not enough info..... I did take the modem back to NAE ( thanks for the advice) . but i downgraded to access the service menu. I was reading some posts about manually entering APN settings for seperate services. Thought i would at least try . I am still new to SG4 .

Thanks for the link , I will try it tonight.
[Sprint Samsung Galaxy S 4 General] lokmanmlh:
I need to know unlock process for 4.3 and baseband MK2

I am new here. wants to know how can I unlock sprint gs4 to t-mobile. I have 4.3 version and baseband MK2. give me the whole process first to last. thanks
[Sprint Samsung Galaxy S 4 General] Android kidd:
stuck

hey there

I'm not new just never posted because it wasn't necessary with all the information I could find and able to make it work. In this case today I am stuck and cant get passed step 4 service menu.

I'm on android 4.4.2, I downgraded the base band from NAE to MDC. I also unlocked it with the flasher. And the phone is rooted.

I got into service menu with no problems but i am not able to go anywhere from there, I tried cdma, gsm/umts, and lte/cdma.

The picture below is in the service menu on gsm/umts.

I am stuck and need help to move forward.

Thanks
[Sprint Samsung Galaxy S 4 General] twill1987:
Potential BREAKTHROUGH!

It seems (I am in the process of working this out right now) that the FULL service menu CAN be accessed on ANY modem (including NAE)

I found this information while looking to domestic sim unlock the Galaxy S4 Mini Model SPH-L520.

E:V:A has cracked the service menu for the S4 Mini which ALSO works for the SPH-L720 model!

Follow his tutorial here http://xdaforums.com/showthread.php?p=52255287#post52255287

But the steps are as follows. Dial *#0011# and then hit:

==> [MENU] + [Back]

==> [MENU] + [Key Input] + "Q"

==> [MENU] + [Key Input] + "0000"

==> <wait ~5-10 seconds>

I have tested and it WORKS on the S4 NAE modem!! All props to E:V:A. I'm sure he wasn't aware that his method also WORKS on S4 for Sprint, since he is using the S4 international European version. Looks like possible one won't need to downgrade the modem anymore to make this work :)

Hit thanks if this helped you out, and give E:V:A some love
[Sprint Samsung Galaxy S 4 General] Android kidd:
thanks for the help, worked excellent.
[Sprint Samsung Galaxy S 4 General] twill1987:
No prob

No problem. If you know of ANY way to internationally unlock Galaxy S4 Mini please let me know.

I am THIS CLOSE to domestic sim unlocking it as well, but am missing the international unlock.

I've tried region lock away, and the S4 method used in this thread, but no dice as of yet.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Flash MDC modem, do international unlock, do domestic unlock, flash MK2 modem back. Search the thread for instructions.

That's not the right service menu. If you don't see the options outlined in the OP, try again. What works best for me is 0011, then menu->select->2

But that doesn't mean the international unlock will work on any modem. You need to downgrade for international unlock. And only doing the domestic portion won't make it work - trust me, I've tried lol
[Sprint Samsung Galaxy S 4 General] ecs87:
Gave EVA and you some love. Good find. Gives me motivation to look into the international unlock. It'd be nice to find one for the Note 3. Especially with the new released information on the service menu. :thumbup:
[Sprint Samsung Galaxy S 4 General] Soggytoast111:
Since I did the unlock, I've been hanging on stock 4.3 with MDC modem. I'm thinking about upgrading OTA to the latest version. Is it safe to do this or will I lose unlock?
[Sprint Samsung Galaxy S 4 General] filipppo:
Good thanks
[Sprint Samsung Galaxy S 4 General] ecs87:
Go for it. Kit kat isn't fun though. I'll say that
[Sprint Samsung Galaxy S 4 General] machhho:
my firmware is NAE , so all I have to do is flash the MODEM ( baseband ) to MDC and then followed the instructions listed in post #1 .

is this what I have to do !!!

thanks in advance
[Sprint Samsung Galaxy S 4 General] ecs87:
Yep
[Sprint Samsung Galaxy S 4 General] melkis:
I flashed my NAE using this MDC and now its says "firmware upgrade encountered an issue. please select recovery model in kies & try again"" what should i do

EDIT:

nevermind i flashed this nae modem and it works again and also i flashed the MDC in the link too without problems -_-
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
How did you flash? Did you use the tar?
[Sprint Samsung Galaxy S 4 General] melkis:
i flashed with the "tar + odin".exe but then i tried odin 3.07 and this files instead and i worked like a charm
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Yeah i would always stick to just Odin and the tar file(s). Glad it's working!
[Sprint Samsung Galaxy S 4 General] againareku:
So I am frustrated here..because I am so close yet feel so far

started on stock nae, rooted via cf, flashed to mdc, did the international unlock, did the domestic unlock, flashed to nae

Wifi broken and no signal, flashed to mk2, reflashed to nae, and now have wifi again and fully working signal

I can make phone calls, texts, and access EDGE data

When I select wcdma all from service menu I get no bars and a red x

Reselect gsm all and I get edge

Using a redpocket mvno sim, using their apn settings for android

Really frustrated here

Getting on hspa is my real concern, I'd like to be able to use aio or att..

Read somewhere 850 is disabled on sprint s4..could this be why it doesn't work?

Any att, h20, or rp users plase chip in
[Sprint Samsung Galaxy S 4 General] againareku:
I was able to get my msl and edited both options (put my phone number in each) now status shows my new number and voice mail

Also set the mms apn from ##data#

Two problems remain, one new one old

Old, still on edge

New, get this txt each time i reboot

From 1121611611

8737 error invalid number

I uninstalled hangouts and any app remotely connected to txt and i still get the error txt
[Sprint Samsung Galaxy S 4 General] ecs87:
You're on edge because you chose GSM all instead of WCDMA all when you were going through the service menu. WCDMA all will get you H+. GSM only gives you edge.

---------- Post added at 11:30 AM ---------- Previous post was at 11:28 AM ----------

Have you tried restarting and waiting a few minutes for it to register a signal? I've never had an issue using WCDMA all, and it gets me H+ on every phone I unlock. When you have no bars is it in searching mode or emergency calls only mode? If it's in emergency calls only I'm going to have to say you've got a blacklist situation going on (which is weird if it still works on GSM all).
[Sprint Samsung Galaxy S 4 General] againareku:
Patience is a virtue, let it sit 10 minutes and got H+ signal.

Did a little more research and got into the iot menu, switched it to global and double checked wcdma all was enabled in the service menu, now h plus pops up as soon as i boot

Also, what do i put in place of my sprint username in the data menu option?? Does it depend on carrier? Do i just put my number?

Still have this problem though, get one of these everytime i boot
[Sprint Samsung Galaxy S 4 General] savant3D:
Confirmed. I also have hspa+ running on NAE now. Thanks! :good:
[Sprint Samsung Galaxy S 4 General] twill1987:
Happy to help bro!
[Sprint Samsung Galaxy S 4 General] ecs87:
That text looks like what happens when I clear error 16s when I flash to Boost. Me thinks it's some kind of OTA provisioning thing. Obviously if you're not on Sprints network it's not doing anything. I'm wondering why it's getting broadcasted to you though.

Ignore the username in the DATA section. That's for CDMA networks. You're using the GSM portion of the phone. It doesn't matter what you put in there at this point, you're not currently using it. And even if you do mess with it, it can be rewritten by activating the phone on Sprint (or one of their daughter companies) and updating the profile.
[Sprint Samsung Galaxy S 4 General] Roxisayshi:
Hello everyone,

I have started having voice quality issues recently on my sim locked sprint galaxy s4. I am T Mobile sim and on call the voice breaks a lot. Not only I am able to hear other person's voice, my voice is not audible as it break after the interval of 2-3 seconds.

Are their anyone else facing this issue and can help me out? I downgraded my modem to MDC to unlock my phone then upgraded back to NAE with stock ROM. Initially I thought that it might be network issue but when I insert the sim into my other mobile, it works just fine so I am definitely sure that it is my phone that is causing problems and not T Mobile network.

Please help me or suggest possible ways to resolve this. Thanks.
[Sprint Samsung Galaxy S 4 General] dabar7:
I had the same issue, that WCDMA took all my bars away and mine isn't searching, it just sits there.I know the IMEI isn't blacklisted on mine. Won't it search for a sprint signal if I choose global? I've had some settings give me 3G for a moment and it dissapears..this is driving me crazy, I get nothing but EDGE and I downgraded to MDC and upgraded back to NAE..any ideas?
[Sprint Samsung Galaxy S 4 General] TheZander:
Hey, when I do this. Does anyone know of a way to keep the Mobile Network type from reverting to CDMA? Sometimes it happens and needs to be changed to back to GSM / UTMS . What would happen if after I unlcoked it and have it working and flash a MetroPCS or Tmobile ROM ? Would it screw it up?
[Sprint Samsung Galaxy S 4 General] ecs87:
I've never had a phone revert back to CDMA after unlocking. And I've done about a hundred of them. As long as you follow the general instructions in the first post it'll stick.

---------- Post added at 01:32 PM ---------- Previous post was at 01:29 PM ----------

It needs a minute or two to find the signal. Follow the general instructions in the original post. There's no need to EVER touch the connection type. Changing it to global, gsm, umts, etc will simply screw with the unlock. If you only get emergency calls then you're going to need to double check the IMEI. The only reason why you'll get no signal and emergency calls only is if the phone is blacklisted.
[Sprint Samsung Galaxy S 4 General] dabar7:
PROFIT! I believed in WCDMA so to speak, I left it there, and I messed around with the service menus, reset all the freq's but when I looked at what they said, they were all still "full"..long story short, I chose WCDMA ALL, and ALL for GSM and LTE for the hell of it, making sure I chose WCDMA All again..and somewhere I saw "atomatic"..I also notice that through the phone's setting menus (not service menu),..in mobile networks..it was automatic, chose it ...and H+ ! way faster, I was glad to return the phone to my friend, thanks for everyone who replied and attempted to help
[Sprint Samsung Galaxy S 4 General] hindjew1:
So, I was able to unlock the device. I don't exactly see WCDMA but it works perfectly on GSM and even uses HSPA with AT&T. I was able to enter the AT&T APN and data works. I can send MMS but I cannot receive them. I don't have the MSL so I can't exactly enter ##DATA# and change the information there. Since the phone is no longer active with sprint, sprint can't provide the MSL either. I've tried using MSL Readers but they all state that it has to be on CDMA (I've switched back to CDMA onto sprint's network and the readers still don't work). AT&T's visual voicemail works but sprint's visual voicemail continues to pop up.

Every time I restart the device, it tries to activate the handset (i hit cancel). Can I load any AT&T based ROMS? or is there a vanilla ROM that I can load that has touchwiz but doesn't include any of Sprint's Customization? Any solution for the MMS?

Thanks to everyone for all their help. I've searched this forum prior to posting.

Root: CF Auto Root

Downgraded to MDC: SPH-L720_MDC_Modem.exe

Upgraded back: L720VPUFNAE_L720SPTFNAE_L720VPUFNAE_HOME.tar

Somewhere down the line also used: SPH-L720_Rooted_NoData_Restore.exe

The phone locks up every time i tried going to mf9 using: mf9fullupgrade.tar.md5

Current modem = NAE
[Sprint Samsung Galaxy S 4 General] Chuki82:
How can I tell if my area is running hspa+? I've left it on wcdma for awhile and I get no service. Switching it to gsm all and I get service, and edge too obviously.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
The MMS fix has been posted back in the thread. I wouldn't try a ROM from another carrier unless you're positive you know how to recover if it bricks. I'm sure there is a Touchwiz ROM sans Sprint extras, if you search.

Coverage map?
[Sprint Samsung Galaxy S 4 General] Chuki82:
I have a t mobile gs5, if I set it to wcdma only I still get a 4G connection. On my gs4 just get a red x. How do you check the imei certification?

It's my own gs4, so I know it's good.
[Sprint Samsung Galaxy S 4 General] Chuki82:
I let it sit all night long and still had a red x, and emergent services only
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
This is for the Sprint GS4, not the T-Mobile GS5. Are you in possession of a Sprint S4 (SPH-L720) and are you attempting this unlock process with it?
[Sprint Samsung Galaxy S 4 General] Chuki82:
Yes sir... switched to t-mobile, trying to save money by using my old sprint gs4.

Trying to find out if the hspa network here is on the 1700mhz band or not.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
If you're only getting a red X, then the phone might be blacklisted. You need to first worry about getting ANY signal at all, before you worry about 4G. Did you finish paying off your Sprint account?
[Sprint Samsung Galaxy S 4 General] hindjew1:
The only fix I've seen is the ##DATA# which requires the MSL. But I may have missed it. So i'll go back to reading the 70+ pages to see if I can figure it out.

So can I flash any Sprint based ROM?

The reason I asked if I could switch to an AT&T ROM was because people have talked about switching to a T-Mobile based ROM in here. I figure it's worth a shot. I'm so glad I asked!!! Any and all suggestions will be greatly appreciated.

Gives me a solid H on top and I can pull down a solid 8mbps on speed test. For my uses, that's good enough.
[Sprint Samsung Galaxy S 4 General] Chuki82:
I can get it to work with gsm edge just fine. Phone isn't black listed. just pulled it off of sprint yesterday.

When I change it wcdma I get stuck with a red x. If I change it to gsm I get full uninterrupted service. Texts and calls work fine. Haven't mms yet.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Or you could search for "mms". Just sayin.

You don't need to be messing with that. Make sure the bands are set to GSM All and WCDMA All in the service menu, and then put the phone in GSM/UMTS only via Settings. It will pick up whatever's available in your area.
[Sprint Samsung Galaxy S 4 General] Chuki82:
That's how I have it right now. I live in rural town as well.

If I check my GS5, it shows I'm connected to band 4, which according to wikipedia is a 1700/2100 HSPA+ network. It seems that I wont get HSPA+ (4g), on my Sprint GS4.

Ironically edge is more reliable than Sprints 3g network they have here.
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Sprint's devices don't support 1700. And you being rural means no 1900 MHz refarm. 1900 is still Edge in your area, hence that's all you get
[Sprint Samsung Galaxy S 4 General] augiebaez04:
mms help

i hate to beat the same dead subject but ive searched for the mms fix and cant find anything other than flashing the tmo rom (which i did try and it gave me an error) i am on the nae rom with everything to match base and modem with hsap+ and voice already just need mms please point me in the right direction my forehead has lump from beating it against the wall..:silly:
[Sprint Samsung Galaxy S 4 General] ecs87:
http://www.mediafire.com/?u8nzdyfs7vgfqqm get your SPC with this app. You MUST have an active data connection on your phone to use this (or be connected to wifi).
[Sprint Samsung Galaxy S 4 General] aktran9:
Updated to MF9 and works on both Tmobile and Straight talk without issues. I used Triforce rom 3.1 btw
[Sprint Samsung Galaxy S 4 General] fergdizzle9090:
so if im on mdl can i update after i unlock or should i leave it on mdl? can i flash custom roms after i unlock and does it have to be sprint or should i use tmobile S4 roms? and is it possible to use any gsm lte? or only hspa+?
[Sprint Samsung Galaxy S 4 General] imbmiller:
MDL should be fine to use

You can update after the unlock to mf9.

You should be able to flash touchiz based roms no problem and aosp /kp with a little extra tinkering.

You should use the sprint kernel with either a sprint or touchwiz rom.

It is only confirmed working on hspa+.
[Sprint Samsung Galaxy S 4 General] gershee:
this is relevant to some posts a few pages back.

I'm on cm10.1 mf9.

called sprint and had them unlock my phone.. took 2 minutes..

in Australia using an optus sim card..

had to mess with a few settings..

everything is working EXCEPT SMS. can't send but I CAN receive.

other then that everything is perfect..

anyone have any ideas to fix SMS? think I may flash gummy tmob version cause this is driving me nuts..

when I switch from NV to SIM (under cdma subscription) I get force close on phone.. maybe that has something to do with it?

all SMS I receive have the country code in front of them.. my phone still thinks its under my old american phone number.. help?
[Sprint Samsung Galaxy S 4 General] hayat4:
step 11 not working, it does not reboot. any suggestions?
[Sprint Samsung Galaxy S 4 General] laoh:
How do I get Sprint data working again after successful int'l and domestic sim unlock

Ok, so I did all the steps (tried to follow as close as possible, hopefully didn't deviate).

I do finally have Tmobile connection. I have an inactivated new sim so I popped it in, scanned available networks and get ATT and Tmobile to show on the list. Picked Tmobile and now I have H+ sign. I tried to call a phone number but obviously, it didn't dial b/c of inactive sim, but I got the Tmobile automated message, so I know Tmobile is working.

Now the problem I'm having is trying to get back to Sprint. I put Sprint's sim back in and selected LTE/CDMA for network but I can't get LTE or 3G data to work. I can make calls and do sms but I have no data whatsoever. I have also re-flashed the model back to MF9 after downgrading to MDC.

I wish I backed up Sprint's APN settings on HiAPN but I hadn't :(

Does anyone know how I can get Sprint's data working again? Thanks! (and my Sprint line is still active... not ready to close account yet).
[Sprint Samsung Galaxy S 4 General] laoh:
Right I experienced the same thing, expecting auto-reboot.

But I think it's saying you should reboot it manually after those 6 + 6 presses. But I was expecting to auto-reboot so I pressed 6 + 6 again (total 12 each!) and manually rebooted... then when it rebooted, no connections, nothing (had inactivated tmobile sim inside). I then went into settings and manually changed from LTE/CDMA to GSM/UMTS. After changing that, I was able to do a manual scan and saw that ATT and Tmobile were avail and was able to select Tmobile. Connects at HSPA+ where I live (though it seems to hunt among Edge, 3g and H+ for no clear reason).
[Sprint Samsung Galaxy S 4 General] doctorman:
I used this method and unlocked my phone and now having issues connecting to movistar mexico can someone comment on it please

http://xdaforums.com/showpost.php?p=47916003&postcount=604
[Sprint Samsung Galaxy S 4 General] nicotheandroidguy:
That is a international unlock, so your question belongs in the international unlock thread.
[Sprint Samsung Galaxy S 4 General] doctorman:
Can someone please explain some of the basics for me..

the process of the unlock affects which part of the phone software.?!

SO there is the firmware for the phone including, the ROM, Bootloader, Modem, recovery etc..

which parts are changed by this process?

then what are the parts that are backed up in the nandroid backup/restore? trying to understanding if a nandroid restore would return the root and the unlock stat to the way it was..

which parts are changed with a factory reset?

Thank you
[Sprint Samsung Galaxy S 4 General] nicotheandroidguy:
The unlock seems to be stored on the modem so factory resets do not remove it and nandroids will make no difference in getting or losing the unlock.
[Sprint Samsung Galaxy S 4 General] doctorman:
I know that we can upgrade MDL to MF9 without changing the settings

what does that mean then?

if the unlock is saved in the modem and modem does not get reset by installing an upgrade?!
[Sprint Samsung Galaxy S 4 General] nicotheandroidguy:
It tricks the modem, it only applies to mdc-mf9 modems because it is a bug that carries over as a modem setting so it stays but it hasn't worked with the mja update yet.
[Sprint Samsung Galaxy S 4 General] sergio_sss:
This is all i keep on getting, I tried the steps mentioned before lots of times but it still does not change :crying:
[Sprint Samsung Galaxy S 4 General] tronac:
Has anyone managed to get this phone working on 1700 Mhz? The Verizon version which has the exact same logic board as this phone works on 1700 so this phone should also have the capability. Since the internal hardware is the same as the Verizon version this phone should also have the ability to work on the same LTE frequencies.
[Sprint Samsung Galaxy S 4 General] DAFTEK:
I just installed 4.4 kitkat with these exact instructions http://www.youtube.com/watch?v=XlYPFxr2O2w#t=140

rooted and t-mobil prepaid worked right out of the box as you mentioned. no unlocking no nothing...

I downloaded this rom http://xdaforums.com/showthread.php?t=2544474
[Sprint Samsung Galaxy S 4 General] xuser:
Are you on the MJA modem? If not, which one?
[Sprint Samsung Galaxy S 4 General] DAFTEK:
No, I am on MF9
[Sprint Samsung Galaxy S 4 General] xuser:
Thanks. So basically you did not have to do any on the 14 steps in the OP? You just installed a T-Mobile TW ROM with a Sprint kernel on a MF9 modem? Then flashed the KK T-Mobile ROM and everything worked even with the stock kernel? Sorry its not clear to me. Did you ODIN the TW ROM or just flash it in recovery? What did you wipe between the TW ROM and the KK ROM?
[Sprint Samsung Galaxy S 4 General] DAFTEK:
You first need to do steps 1 to 11 then you can root, then mf9 then ODIN or TW then install t-mobile rom, once the phone boots the phone works with no other changes made. I only get 2G apparently in my area from I wireless. I now switched to this rom with no problems. http://xdaforums.com/showthread.php?t=2341026
[Sprint Samsung Galaxy S 4 General] hindjew1:
Ahhhh WCDMA refers to the service menu. Why the heck didn't it click in my head. Yes, it was set to WCDMA when I was following the instructions. Whenever I follow instructions, I usually don't digest what's going on, I have this 'monkey see monkey do' mentality and complete the task successfully. (Even though this response wasn't aimed at me, it just totally made a full circle for me. Thanks)
[Sprint Samsung Galaxy S 4 General] iBowToAndroid:
Sweet. Only works with Sprint? Any other Sprint Galaxies it might work on? Root required?
[Sprint Samsung Galaxy S 4 General] ecs87:
Root NOT required (dunno how it does what it does without it...very cool app). Only works with Sprint because they are the only phones I've seen that use SPC codes (other than the old Galaxy S and S2 phones from VZW and USCC which can just be put into diagnostic mode and sent the 16 digit password). The app only works on ICS/JB/KitKat too. I don't think it works on Gingerbread or lower.

---------- Post added at 06:20 PM ---------- Previous post was at 06:14 PM ----------

Damn it! I Wish more people were like you! It isn't until things start clicking and you start putting things together that everything in the original post and the replies afterwards that you REALLY/officially know what you're doing. Being able to solve your own issues and provide solutions to others isn't so bad either ;)