yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
There is something funky about the GPS in this ROM, but I can't say I'm experiencing it as badly as you are. For me, the GPS takes a couple extra minutes to get a good lock, but once it gets it, it's relatively stable.
[Galaxy S 4 Q&A, Help & Troubleshooting] marianoyaca:
Network unlock

Could someone unlock this phone ???
[Galaxy S 4 Q&A, Help & Troubleshooting] gotablunt:
T-Mobile WiFi calling

For those who have flashed T-Mobile ROM and bought sim unlocked code( not permanent), does WiFi calling work?
[Galaxy S 4 Q&A, Help & Troubleshooting] marianoyaca:
Unlock code

Hey ! I bought the unlock code and flashed the TMobile Rom, but it doesnt work, is there any special thing I should do to make it work ??

Thanks !
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
What SIM card are you using in the phone and also where you purchased the code and how much?

On another note

I tried using the Kushan Android 5.0 Rom but i get so much FCs. probably because of the Kernel and older bootloader on the phone.
[Galaxy S 4 Q&A, Help & Troubleshooting] marianoyaca:
Unlock code

I'm using a sim card from my county (movistar from argentina).

I bougth the unlock code from two different sites unlocksamsungonline.com and unlockscout.com and both gave me the same number despite the fact that in the first one I informed that i had a M919n because i installed that rom from tmobile and in the second one i informed the original rom from Starightalk S975l.

The number they gave me doesnt work un my phone, is there anything i could do ?
[Galaxy S 4 Q&A, Help & Troubleshooting] gotablunt:
So you installed a T-Mobile ROM but you don't have a T-Mobile sim card correct? So WiFi calling wouldn't work, what about for anyone who flashed T-Mobile ROM with a T-Mobile plan, does WiFi calling work?
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Even with the TMO rom, it wont work because you need to be on the TMO service area and have a working TMO sim card. if you have the unlock code do the following.

P.S: You need a rooted phone.

1. Install Phone Info Tools from market

2. Install, open and allow root access

3. Press Menu key and select Secret Codes...

4. Let it populate the list

5. Scroll until you find 7465625*683*(you will see two)

6. First Tap the one that says "Perso<android_perso_lock_code>" followed by Launch 0

7. On the MCC/MNC enter your carriers corresponding MCC/MNC code, On Control Key enter code you have. Press "OK"

8. Second Tap the one that says "Perso<android_perso_unlock_code>" followed by Launch 0

9. Enter Code you have and press "OK"

10. Phone should be unlocked now.

11. When reboot or turn on, follow steps 1-10 every time.

12. Thank Me.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Was reading on the internet regarding the latest on tracfones unlocking policy and came across this:

http://www.prepaidphonenews.com/2015/02/tracfone-backtracks-on-phone-unlocking.html

Pretty much explains that Tracfone never signed the agreement imposed CTIA. So based on this it seems that TracFone is not required to unlock any of its devices.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Finally got it to work...
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
That's the Kushan ROM, correct? Any issues? I like the Beanstalk ROM, but the camera support is unreliable at best, and I lose cellular connection occasionally when I am also connected to Wi-fi.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
This is what I have been using..

http://xdaforums.com/galaxy-s4/i9505-develop/i9505-android-5-0-1-lrx22c-i9505xxuhoa7-t3033749

Has been working good so far.
[Galaxy S 4 Q&A, Help & Troubleshooting] WartuneBteam:
Can you please explain me what do i need and how to install that? Im already bored of the 4.3 version ;/ thanks..
[Galaxy S 4 Q&A, Help & Troubleshooting] djohne:
My Tracfone experience

Ok so I installed was not getting the popup with a non Tracfone sim, but I could type #7465625*638*# to access the network lock menu, 1st code I got did not work but the supplier Xpressunlocks sent a new one, 1st time I entered it said unlock successful but I could only receive calls and text. it still showed invalid sim and emergency calls when I tried to dial out or use ussd codes. I tried using a different sim and the phone stopped taking calls. I flashed Fenny rooted 1.3 from the post. Worked fine and now the unlock option shows up. code still says unsuccessful. I even followed ur steps in post found the Tracfone MCC 31099901, and it says lock unsuccessful. I'm wondering if this needs a new code every time but assuming the old one would work. I'm just reporting what has happened to me...Oh I called Tracfone to unlock and after giving them the imei they ay it was not registered properly when bought(dunno what that means)
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
If you are living in the USA, the MNC/MCC needs to be the one for the new Sim card you are using. Say for at&t 310410, tmo 310260. The same code should work always.. If you have not restarted the phone for your second attempt it won't work.
[Galaxy S 4 Q&A, Help & Troubleshooting] djohne:
Flawless Victory

Thanks for the tip, can you edit you instructions to say the MCC of the new sim, tested and it works perfectly even after I reboot and reenter the code
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Updated instructions and created a new thread. http://xdaforums.com/galaxy-s4/help...g-sm-s975l-t3045123/post59196197#post59196197
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
What did you do to get it installed successfully? I tried to flash the 2.1F version, but it just hangs on the Galaxy S4 boot screen.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Am using the first original release that was made. If has some apps that force closed but I deleted them one by one. I'll get the link shortly. To install the ROM I did a complete wipe before and after install. I also install the latest ausdim kernel v2 located in his thread, for this build you have to install the google apps but I can't seem to find the link so I'll upload to mega. I'll try to get something written up for tomorrow.

Link:

https://mega.co.nz/#!n4Zi2CqY!ZdQSVYi6pT1urZW3l3hsjFv6KsWUAXJEgnSXzhO8-xo
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
Hey all, in case other people are still watching this thread, I've found a fantastic Lollipop build that works well on this phone. It's the Dirty Unicorns v9 build over here: http://xdaforums.com/galaxy-s4-tmobile/orig-development/rom-dirty-unicorns-v9-0-t3005869

I flashed the v9.2 version which is the latest, and the recommended Gapps. Worked without a hitch. Camera works great, bluetooth works great, cell doesn't randomly drop, and no force closes to speak of, among other benefits over the Beanstalk build. It's very responsive too. Highly recommended if you have this phone.
[Galaxy S 4 Q&A, Help & Troubleshooting] lucky194u@comcast.net:
looking at the menu it says: 7465625*638*, NOT *683*

Am I Wrong?
[Galaxy S 4 Q&A, Help & Troubleshooting] WartuneBteam:
It's 638, dont worry
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Wondering what tracfone could possibly be testing on these phones..
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
So Samsung shipped them another model of this phone with something different about it? I guess that's a good sign they're still supporting it.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Hoping its a firmware update that will allow to fully unlock these phones.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
And this time 35 units were shipped..

https://www.zauba.com/import-sm-s975l-hs-code.html
[Galaxy S 4 Q&A, Help & Troubleshooting] WartuneBteam:
Did anyone find a good & stable version of android for this phone?
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
It seems we are getting Lollipop of this device.. See what I found on the Wi-Fi Alliance Certification page. :D :D :D

The devices SM-S975L & SGH-S970G were running Android 5.0. The SM-S890L was running Android 4.4 at the time of testing.
[Galaxy S 4 Q&A, Help & Troubleshooting] WartuneBteam:
Nice!!! when would this happen?? I am really bored of the 4.3 lol
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Well being it the first time we will see tracfone provide ota updates.. its really not predictible as to when this is happening.
[Galaxy S 4 Q&A, Help & Troubleshooting] WartuneBteam:
But we are rooted already, does this affect the way to get this update? I mean, how is this gonna happen?
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
It should not. Once we restore to stock it should set the system status to official and allow to do the OTA. I sold my SM-S975L for an SM-G900H. But i should have new one by then and will assist in anyway to have the update applied. Am thinking tracfone would release the update once the T-Mobile SGH-M919 is updated to lollipop.
[Galaxy S 4 Q&A, Help & Troubleshooting] WartuneBteam:
I hope to see this update soon, as the version 4.3 is already too old
[Galaxy S 4 Q&A, Help & Troubleshooting] sleekmason:
Here is the definitive guide for those wondering what to do that will work and be stable and AWESOME!

From the beginning:

1.Root with towelroot (search)

2.Install the latest recovery from here using the DD method. This is from T-Mobile and works! http://xdaforums.com/showthread.php?t=2263001

MAKE A BACKUP!!! DO IT! No more messing around with Safestrap and the bitter warnings!

To get into recovery hold "home+volume up" during boot. Whoooo!!!!

3. Install the Lollipop gpe ROM from here: http://xdaforums.com/showthread.php?t=2539361

This uses the aroma installer and works well.

You may, or may not have to input *#6463*# into dialpad to change settings to LTE etc.. This adjustment may alsobe in the ROM settings!

4. Optional - install the googy kernel

I like this kernel better though there isn't a huge difference from the hulk kernel. Make sure to install the GE edition 1.3.0. NOT TOUCHWHIZ! : http://xdaforums.com/showthread.php?t=2741181

ENJOY!

Maybe the op would like to put this up front? All the info is basically in this thread, but scattered. What I have now is flawless.
[Galaxy S 4 Q&A, Help & Troubleshooting] Shanghai.Knight:
Is there really going to be an update? I somehow doubt it.

Straight Talk is okay, but I'd never recommend it anymore, especially for their own phones. Cricket wireless seems to be a better att deal overall...
[Galaxy S 4 Q&A, Help & Troubleshooting] Shanghai.Knight:
Straight Talk just changed their unlocking policy to start unlocking phones, in agreement with the FCC... It appears my straight talk s4 is not eligible for unlocking...

https://www.tfwunlockpolicy.com/

Can someone else with an s4 visit this site and see if your s4 is eligible?

Can't believe no one has found a way yet...

Anyone successful in getting the temporary unlock code from straight talk? They won't even give me this...
[Galaxy S 4 Q&A, Help & Troubleshooting] ddjr:
towelroot doesnt work for my phone. it says it is unsupported. kingo root with the pc says it has rooted the phone, but apps that need root (that i have granted permission to) fail and say phone is not rooted... i cant even root this thing, let alone put a rom on it. i have been unable to find any roms for it. these tmobile roms, they work on my phone even though it is straight talk on verizon towers?

ill get to that later- first I NEED ROOT AND CWM RECOVERY!!! i have odin, can i download a .tar file and pda it? to root, then pda the cwm .tar file? is this possible? if so, WHERE can i find these files? thanks for listening. jellybean 4.3 is just so... so lame.

---------- Post added at 08:11 PM ---------- Previous post was at 07:16 PM ----------

Well, I borked it. Granted rom manager root and tried to have it install cwm recovery. Now it's stuck and won't turn on. It's stuck at the "a service of tracphone wireless" screen. Is there any hope for this phone or is it dead? It does go into download mode. I try to engage the stock recovery but it doesn't do much. Blue letters stating can't do this and can't initiate that...
[Galaxy S 4 Q&A, Help & Troubleshooting] marianoyaca:
Im still trying to find a way to unlock this phone it seems to be impossible...
[Galaxy S 4 Q&A, Help & Troubleshooting] Lorena32605:
I checked mine (activated 11/14) and it says eligible for buyback. $100. ?
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
The Straight Talk Galaxy S4 is absolutely not unlockable, either by unofficial or official means. All tools have been tried and they aren't effective. There must be some kind of hardware limitation that prevents this from happening, otherwise, Straight Talk would have unlocked it for us. The $100 buyback keeps them out of legal hot water, I suppose.
[Galaxy S 4 Q&A, Help & Troubleshooting] Shanghai.Knight:
Sold mine on Craigslist for 150

---------- Post added at 07:15 PM ---------- Previous post was at 07:14 PM ----------

And then I switched to Cricket... Better customer service, better perks with service too...
[Galaxy S 4 Q&A, Help & Troubleshooting] sorcefm:
I found some info on this S975L issue

Check this link out this guys seems to know I can't post link email me it's on forum.gsmhosting

try what this guy says, he says the phone aupports GSM and is not a CDMA phone

I can't post link it's on forum.gsmhosting email me

sorcefm@gmail.com I send you what I have found.
[Galaxy S 4 Q&A, Help & Troubleshooting] Shanghai.Knight:
Please provide a link to where someone claims to have unlocked this phone... I see someone claiming to have installed the ATT ROM but no one successfully unlocking the Radio... All still have "Invalid Sim" after running the unlock.
[Galaxy S 4 Q&A, Help & Troubleshooting] sleekmason:
I am now running lollipop 5.1 gpe on my Straight Talk s4 .

Kingo root, then switch to supersu AFTER installing TWRP (jfltetmo) for tmobile by the official TWRP app. Then do full wipe and install the gpe edition in the development section by danvdh , 10-21-2015

Of course make a backup first. You are welcome.
[Galaxy S 4 Q&A, Help & Troubleshooting] Shanghai.Knight:
And this results in a unlocked SIM?

Sad I gave away my Straight Talk Phone... - but I'm excited this is now possible.
[Galaxy S 4 Q&A, Help & Troubleshooting] sleekmason:
Dont know about the sim. Never bothered. The gpe edition is flawless. Everything works as expected. Did both mine and my wifes phone.
[Galaxy S 4 Q&A, Help & Troubleshooting] Shanghai.Knight:
Oh. Well, that's the rub. People want to get untethered from Straight Talk. No one has found a way to do that yet. Would be interesting if your way impacts the sim-lock Straight Talk applied to these phones. No other sim unlock has worked till now. I don't have a straight talk phone anymore, so... No need to try on my account.

Enjoy your GPE edition Straight Talk phone. ;)
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Flashing a different firmware or ROM has absolutely nothibg to do with SIM-Lock. The Straight Talk S4 is hard locked. Even their unlock codes does not do a permanent unlock.
[Galaxy S 4 Q&A, Help & Troubleshooting] RomLord14495:
So this phone is bootloader unlocked?
[Galaxy S 4 Q&A, Help & Troubleshooting] audit13:
Bootloaders from USA carriers are not factory unlocked except for the T-mobile.
[Galaxy S 4 Q&A, Help & Troubleshooting] jerryspring:
This bootloader is not locked

---------- Post added at 05:32 AM ---------- Previous post was at 05:31 AM ----------

S975l is, yes
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
Just out of curiosity, if the hardware is actually the AT&T variant (signified by the SGHI337 in the FCCID), why would the T-mobile TWRP work and not the AT&T TWRP? Or the AT&T ROM for that matter? Seems strange.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
That is what i find strange on this phone. As I go along experimenting with this phone am sure I might find something to explain that. But at the moment that's one question lingering on my mind.
[Galaxy S 4 Q&A, Help & Troubleshooting] carlyman:
I'm not that familiar with Android Kitchen....any reason you couldn't flash TWRP, then flash the T-Mobile ROM, S975L baseband, and kernel all separately (versus creating a custom ROM)? Also...did you have issues with 4.4.4 (curious on why you selected 4.4.2)?

-JC
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
This is going to be my first custom ROM experience in about two years (I switched to iPhone in 2012 from a Droid Incredible), so I also have some similar questions.

I've gleaned that TWRP *must* be flashed separately because there will be no way to install the ROM without it. After that, I'm mostly at a loss. Is there a good tutorial somewhere that I could use to build my own ROM that will work? I also have the same question about 4.4.4. I'm assuming it's because aromerblz hasn't done this in a while.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Am creating a guide for me to post over here. to answer a few of the questions. When i flash the AT&T TWRP recovery which should technically be accepted by the phone since its an identical version of the SGH-I337, the phone does not boot to recovery at all. Am downloading other versions to try out tonight and report if i can successfully flash one and load the AT&T Rom I made with the kitchen. By the way the ROM is pure stock as its made from the official Samsung Odin flash-able file. On the other hand the jfltetmo recovery works fine to flash the TMO Rom that I also created, but when I try with the AT&T Rom it flashes but erases the system partition and thus leaving your phone with no OS on it. Am trying to understand why it does that and still working to fix. Now the reason why I flashed the 4.4.2 and not the latest 4.4.4 dated 11/17/14 is because the sim unlock does not work as compare to the 4.4.2 rom. Meaning as I had mentioned before that a friend was able to get me the unlock code but i need to enter it every time I turn on the phone. Annoying but the phone works perfect with no data or call issues that i have encountered. So for me to use the phone with my local carrier i cannot update to 4.4.4. Since you guys aren't planning to unlock the phone, it should work just fine on 4.4.4 for you.

Here is the link to use dsixda's Android Kitchen: http://xdaforums.com/showthread.php?t=633246

---------- Post added at 05:57 PM ---------- Previous post was at 05:53 PM ----------

The Kernel can be included in the rom zip. just replace the stock boot.img, I chose to flash separately since i was already used to do so with my retired HTC One X :(

also if any WiFi issues are found then do this:

"To make wifi work when it wont turn on or connect, change this in the build.prop:

ro.securestorage.support=true TO ro.securestorage.support=false"
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
You are the man! Looking forward to any developments!

---------- Post added at 01:39 AM ---------- Previous post was at 01:00 AM ----------

In case anyone else wants to try, I can confirm that the latest version of TWRP right now (2.8.1.0) for jfltetmo flashed using Odin does work on this phone. Obviously, it does trip the Knox bit, so if you'd prefer to hang onto your warranty in lieu of getting off a terrible ROM, don't do this.
[Galaxy S 4 Q&A, Help & Troubleshooting] carlyman:
Wow..aromerblz, thanks for the detail!
[Galaxy S 4 Q&A, Help & Troubleshooting] bommalattam:
Shouldn't we able to SIM unlock the phone using the steps for M919 using the steps from

http://xdaforums.com/showthread.php?t=2283068

if we are able to install the T-mobile ROM? or is it tied to the baseband version?
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
You CANNOT SIM unlock via the SGH-M919 Method or any other ways. You cannot downgrade modem to access unlock menu. TracFone has the phone locked down pretty good. Not even unlock code unlocks this phone permanent. TracFone may have to provide a firmware update to fix this issue. Yes the modem/baseband is tied up really hard. Even if we find a way to flash another modem I believe it bricks the device.
[Galaxy S 4 Q&A, Help & Troubleshooting] ndowens:
I used twrp installer on Google play to install

I hope this guide comes up soon. Still debating on returning this phone so I can get a nexus 5.
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
Am uploading the stock flashable ROM at the moment. since ill be at work i wont have the guide posted until later tonight. It will be pure stock with KNOX files removed.
[Galaxy S 4 Q&A, Help & Troubleshooting] ndowens:
Are you going to post how to create a custom rom for this device
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
This is what is used to create the ROM

http://xdaforums.com/showthread.php?t=633246

Custom ROMs am not venturing into them just yet. But any T-MOBILE custom ROM will work fine on this device.
[Galaxy S 4 Q&A, Help & Troubleshooting] ndowens:
Do I need to use my kernel and does flashing a tmobile rom change the modem
[Galaxy S 4 Q&A, Help & Troubleshooting] carlyman:
Along the lines of ndowens question.....by flashing a TMobile stock ROM, would/should we expect OTA updates as they are provided by TMobile (and if so, would that cause issues with the baseband or kernel)?
[Galaxy S 4 Q&A, Help & Troubleshooting] ndowens:
The tmobile custom roms won't get ota updates
[Galaxy S 4 Q&A, Help & Troubleshooting] carlyman:
Understood custom ROMs don't get OTA update....looking back at earlier posts it was mentioned the download/flash of the stock TMobile firmware. Probably a dumb question, but if I flash the stock Tmobile firmware (with a custom kernel) and then flash the S975L baseband...its now considered a custom ROM and thus no OTA updates?
[Galaxy S 4 Q&A, Help & Troubleshooting] ndowens:
There is a possibility but I am not a expert in this stuff. If there was a update available don't take it
[Galaxy S 4 Q&A, Help & Troubleshooting] aromerblz:
No OTA updates whatsoever. By doing all this OTA is disable becuase the binary flash counter is set to custom. Only way to update is by flashing based rom on the official firmware update. The modem cannot be changed since it does not accept nothing else that is not tracfone signed. So only parts that can be changed is the system, recovery, cache, and kernel. Am assuming tracfone will provide some sort of update to this devices to fix the unlock issue. As i dnt think no be happy that you must. Enter the unlock code every time you turn on the phone.
[Galaxy S 4 Q&A, Help & Troubleshooting] ndowens:
I personally want to install a rom like pacman or similar on this thing
[Galaxy S 4 Q&A, Help & Troubleshooting] lilmul123:
I'd say the T-mobile mostly stock ROM running on this device is a fantastic start to getting an even more custom ROM on the device. It's a good idea to get over that hurdle first.
[Galaxy S 4 Q&A, Help & Troubleshooting] ndowens:
Starting to think maybe the reason we are able to use twrp is because of loki but may be not. Since it was a hack for a locked boot loader but last I read it didn't work anymore around 4.3

Yeah just looked at the source for the ktoonsez kernel and loki is used on it.

---------- Post added at 06:26 AM ---------- Previous post was at 06:24 AM ----------

That is wrong at least in my case. I could use the sim that came withthis phone in my wp8.1 phone
[Galaxy S 4 Q&A, Help & Troubleshooting] ControlNode:
I was thinking that was wrong, but didn't want to risk moving my number from sim to sim too often. TracFone does some odd things so when support said it would not work I didn't want to risk it.

Side bar curiosity, does your S975L indicate "4G LTE" or just "4G" like I'm seeing? I've run speed test on mine and getting same speeds as my S4 that only supports 3G (I9500), but I know that some 3G (HSDPA+) was marketed as 4G in the US. Interestingly my ATT S3 with LTE, and indicates "4G LTE", was getting same download speed but much better upload. All testing was done with same SIM within about 15 minutes at same location.