yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] indio777:
Lost root months after using towelroot; no system updates taken [Resolved?]

Hi, I hope this is the right place to post this. I'm definitely in the noob category. Sorry that this is rather long, but am trying not to leave out anything that might be important. Any help would be greatly appreciated.

I have a S4 SPH-L720 from Sprint. The software/baseband version is L720VPUFNAE. I used towelroot to root my phone in July 2014. Everything has been fine (except when I had some problems right after rooting because I stupidly disabled stuff that should have been left alone). I have been getting messages for about two weeks that Google Framework Services had stopped and I realized last week that I had to call my voicemail to get messages. As far as the voice mail problem went, I figured I had disabled an app/process that I shouldn't have and was planning on gradually unfreezing stuff that had been recently disabled to see if that would solve the problem. I did get a notification awhile back that there was a Google Framework Services update but I turned it off. I wanted to check if accepting the update would cause problems (I currently have Version 4.4.2-940549).

I realized earlier today that I had lost root when I opened System Tuner and saw I no longer had the option to do much of anything besides look at lists of apps/processes. I ran Root Checker basic (version 5.1.6): my phone was not rooted. SuperSU (version 2.01) gives me a message about needing an SU binary. This just happened recently because I remember granting permission to an app via SuperSu 3-4 days ago. I did install AdBlocker Plus on January 6. And I cleared my cache several days ago. But I don't remember making other changes.

I am interested in trying to figure out WHY I lost root but I also want to know how to restore it. I've been searching the forums and I wasn't able to find anything about losing root after using towelroot when software had not been updated. As far as I can tell it appears that I should perhaps just uninstall/reinstall towelroot and SuperSu and try again? If so, would I also need to uninstall/reinstall other apps that require root to run properly? It seems that I wouldn't but obviously I am not sure.

Or do I need to do something else?

EDIT: Over the weekend I decided to go ahead and try towelroot again. Uninstalled any apps I installed around the time I noticed I had lost root, cleared cache, turned phone completely off and then rebooted. And I had root again. So I am happy but still wonder why I seemed to have "lost" it in the first place. Tried reinstalling the apps I had uninstalled (one at a time) to see if I would "lose" root again. But so far, no problems. Hmmm.....
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] DroidGAWWWD:
SPH L720 Activation Problem

I bought a Samsung Galaxy S4 (Model Number: SPH L720) from Sprint.

It's already unlocked as I am able to use it with my sim card in UAE. However, the phone keeps prompting me to do hands free activation which is not possible without a sprint sim card and I do not live in the USA.

Due to this activation problem I am also unable to update my firmware from 4.3 to 4.4.2

So is there a way for me to evade this activation and update the phone via normal samsung software update?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] TheMattMercy:
Can't get front camera to work

I have gone through 2 different roms and my front-facing camera will not work on either. It started when I upgraded to kitkat, to be specific, Slimkat (http://xdaforums.com/showthread.php?p=55501063&highlight=front#post55501063)

I'm now on AntaresOne & Alucard's CM12:

http://xdaforums.com/galaxy-s4/i9505-orig-develop/rom-cyanogenmod-12-t2943934

I clean wiped everything, used CMfix, etc. Nothing works, so I'm thinking it's a bootloader issue?

Phone info from Slimkat:

"Knox Warranty Void:

Warranty bit not found

...

Bootloader Version

L720VPUAMF9

Baseband version

L720VPUAMF9

...

Build Number:

samsung/jfltespr/jfltespr:4.2.2/JDQ39/L720VPUAMDL:user/release-keys

Build Description:

jfltespr-user 4.2.2 JDQ39 L720VPUAMDL release-keys

...

Android Version:

4.4.4

Phone info from Alucard CM12:

"Knox Warranty Void:

Warranty bit not found

...

Bootloader Version

L720VPUAMF9

Baseband version

L720VPUAMF9

...

Build Number:

cm_jflte-userdebug 5.0.2 LRX22G a5b151636c test-keys (a5b151636c)

Build Description:

jfltespr-user 4.2.2 JDQ39 L70VPUAMDLrelease-keys

...

Android Version:

5.0.2
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] KFloyd:
'downgrade' from CM11/12 back to CM 10? [Somewhat Solved]

Had too much free time this past weekend so I tried a CM12 nighlty, didn't care for it so I went down to CM11.

I'm having issues with MMS, LTE and a couple apps so I wanted to go back to CM10.

UPDATE: I was able to get back to CM10 by doing a full wipe and reflashing the original rom (cm-10.2.1-jfltespr) and corresponding gapps.

However, if I try to restore an image I made previously when on that CM10 rom, I still get Odin yellow screened :mad:

So I'm back where I wanted to be but I need to reconfig/install all my apps, etc (ROM Toolbox Pro FTW)

If there are any tips on how to reload a backup without getting Odin'd- please comment but others here have bigger issues than I..
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] broad_st_bully:
one quick question...since I can NOT find a direct yes/no answer:

can you flash a 720 rom on the 720T/Triband version or not? without losing functionality...

thank you.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
People have reported no problems doing this. You just won't know when you're using triband LTE though.

If you use Sprint's WiFi calling (love it, Sprint service is suboptimal around here), you probably won't have that functionality (not 100% sure about latest 720 ROMs).
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Elpoep:
No WiFi after flashing Sprint S4 OS with Odin

This is for my Samsung Galaxy S4 Sprint Model: SPH-L720

I used the supposed firmware from stock to flash using Odin and wifi not working

***I tried to post here: http://xdaforums.com/showthread.php?t=2338919

BUT received this notice:

Because you have less than 10 posts, the developer of this thread has opted to have replies go to a separate questions and answers thread. Placing your question within the Q&A thread will increase its chances of being answered by a member of the community or by the developer. Once you have more than 10 posts, you can post anywhere.***

I bought this phone from someone who unsuccessfully flashed their phone.

I tried to factory reset and the phone was stuck in reboot.

I held down volume down, home and power and this was displayed:

ODIN MODE

Product Name: SPH-L720

Current Binary: Custom

System Status: Custom

Knox Kernel Lock: 0x0

Knox warranty void: 0x1

CSB-CONFIG-LSB:0x30

Write protection: Enable

eMMC Burst Mode: enabled

I found tutorials to flash with Odin. I went to sammobile and found the corresponding file for the SPH-L720 to flash back to stock. With Samsung USB firmware up to date and my official Samsung cable ready to go I flashed and was out of boot mode. I then factory reset the phone. Phone will not get wifi. I found this thread, http://xdaforums.com/showthread.php?t=2338919, but don't want to use the wrong file to flash the modem. I posted my question on that thread and have not received a response in over 2 weeks.

Does anyone have a file I can use to flash the modem to get my WiFi?

Software version: L720VPUFNG2

Android Version: 4.4.2

Baseband: L720VPUFNG2

Kernel Version: 3.4.0-2162929

Please help if you can spare the time and many thanks just for getting this thread started for N00b S4 users!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JhoonB51:
[MENTION=6328803]Elpoep[/MENTION], is your phone completely booted up with just no wifi?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] k3n775u1:
checked:good:````````````

---------- Post added at 11:44 AM ---------- Previous post was at 11:20 AM ----------

10 post needed to post in other forums
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Elpoep:
It completely boots up-- it just won't get wifi.

I haven't popped a sim card in it but it appears to be functioning correctly.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JhoonB51:
I could suggest 1 or 2 kernels that would probably correct that if you'd like...let me know.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Elpoep:
Can you provide a link for the Kernel?

If you can suggest a guide as to how to implement the kernel that would be appreciated too.

I'm just trying to flash the modem as this will fix this with other models but am open to any other fixes.

Thanks for taking the time to reply to my post.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] gbean009:
Lost all my Wi-Fi password memory today. Weird.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] masonshadowwalker:
OK I am trying to install the latest release of pac rom on my s4 but after I flash it through twrp my phone boots and I get the Samsung logo with a message saying "kernel not Seandroid enforced" or something like that and then it shows the boot animation and plays it for like an hour so I boot into recovery and restore a nandroid backup I made of my original rom and it works fine. How do I get pac rom working!!??
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] cruise350:
Did you wipe your phone first. What you are describing is a classic need to factory reset to get it to boot.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] masonshadowwalker:
Thank you soooo much it worked!!!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] maxim009:
hi I have this galaxy s4 and I want information about it please and which software I can use to update it because there is now OTA UPDATE in settings as shown in pictures And it's cdma and gsm network

Ap : I9500VPUEMJA

CP : I9500VPUEMJA

CSC :I9500SPTEMJA
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] rahulf2:
Hi, I am pretty new to flashing ROMs.

I currently have the NG2 software version on my gs4. The current TriForce ROM is for MK2- am I still able to use it without bricking my phone?

If not, what ROMs am I able to use or should I just update software to a more common version that has more access to ROMs?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Elpoep:
Hi,

I replied back to you about 2 weeks ago and was hoping you may have a solution to get my modem to work properly on this phone--

A Sprint GS4. It was stuck in boot mode when I first got the phone. I used a stock file for my model SG4 from sammobile and used Odin to flash. Now the phone boots up but won't get Wi-Fi.

My research suggests the modem needs to be flashed to work and what ever I flash it with well need to be for my specific phone model.

ODIN MODE

Product Name: SPH-L720

Current Binary: Custom

System Status: Custom

Knox Kernel Lock: 0x0

Knox warranty void: 0x1

CSB-CONFIG-LSB:0x30

Write protection: Enable

eMMC Burst Mode: enabled

Do you have a fix?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] 2WhiteWolves:
On 1st pg/OP there is NG2 modem tar flash in Odin

http://xdaforums.com/showthread.php?t=2773162

Hope it helps.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JhoonB51:
[MENTION=6328803]Elpoep[/MENTION], as [MENTION=5621856]2WhiteWolves[/MENTION] stated above, give the modem and shot first, should work. If not let us know the rom you are on and if you are rooted, current bootloader. Sorry I missed your reply.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] maxim009:
Please help

can anyone help me in that
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Elpoep:
Thanks for getting back at me.

I checked out the link you supplied and read the original post and it advised NOT to flash anything until I know what is already on my phone. I bought the phone stuck in loop and am unsure what was done to it to get it to that point.

I used a stock rom from sammobile -- there is only one option for my Galaxy S4 L720-- to flash it back to STOCK. I used Odin to do the flash and it is out of boot loop. Everything appears to be in working order with that exception that the phone will not use WiFi.

It would appear it would be a bad idea simply to attempt to use those files to flash my phone.

I'm a NOOB (thus, posting in the NOOB forums) and don't even know what to look for before I reflash the phone or the modem alone.

How do I check if:

1. my phone is rooted?

2. what my boot loader is?

Thanks again!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] 2WhiteWolves:
There is My Info in Play Store that can tell you what bootloader you are on. But what stock rom did you odin? There is also a root checker in Play Store that will tell you if you are or not rooted, can't remember name of it.

In My Info app look under Software that is where it will tell what bootloader you are on.

In your original post on 1.29.15 it stated that you were on NG2. That is why I posted the link to NG2 modem tar.

---------- Post added at 02:42 PM ---------- Previous post was at 02:39 PM ----------

Are you rooted? Also is you bootloader MJA? Get My Info from Play Store and look under Software it will tell you what bootloader you have.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] maxim009:
Root chekar : this GT-I9500 not rooted

My info : bootloader L720VPUEMJA

my Mobil looks like Galaxy s4 sprint but way in settings shows gt-i9500 model number
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Elpoep:
So this info from my phone:

Software version: L720VPUFNG2

Android Version: 4.4.2

Baseband: L720VPUFNG2

Kernel Version: 3.4.0-2162929

indicates I'm on NG2? If you can confirm that I am on NG2 by this please do or let me know what else I could do without using the My Info app or anything else that would require me to get on the internet with this phone.

Additionally, as I was able to flash with Odin, is it a safe bet I am rooted?

I'm not lazy and would do as you advise regarding downloading the My Info app from the Play store if I could get on the internet with this phone.

Can you also reply with a link to the TAR you think I should use?

Thanks alot! As I learn from you perhaps someday I can help others when I'm less of a N00B
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] 2WhiteWolves:
Yes, it is NG2. I cannot confirm if you have root. I do not know what you flashed in odin. Please let me know what you did flash.?

It is not the same link I posted on first reply to you. This link is about NG2. Either link has the NG2 modem tar. On

1st pg/OP

http://xdaforums.com/showthread.php?t=2866864

---------- Post added at 10:56 PM ---------- Previous post was at 10:16 PM ----------

If I were you, I would do the ota since you are not rooted and you already have the MJA bootloader that has Knox. If you don't feel comfortable doing it, go to Sprint and they should update it for you. That way, also, if something does go wrong they can be blamed not you, and your phone would be covered that way.

That is my opinion tho, someone else would probably say something different.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] maxim009:
I'm not in usa and phone is unlockd for deferent network I'm using it and it's doesn't have OTA UPDATE in settings :confused:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] 2WhiteWolves:
I have no idea about unlocked sim cards. Here are several links for your gt-i9500. Hope you will get help from someone from the links.

http://xdaforums.com/showthread.php?t=2192886

http://xdaforums.com/showthread.php?t=2265477

http://xdaforums.com/showthread.php?t=2192025
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] maxim009:
ok

thanks bro

I just want know it's SPH-L720 SPRINT OR GT-I9500 BECAUSE IN NOTIFICATION center shows sprint and in settings about device model GT-I9500

Is there GT-I9500 SPRINT or just one model SPH-L720
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] 2WhiteWolves:
It is both. Read on the threads it should help you. Hopefully someone will help you either on this thread or another one. Sorry, I cannot help.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] maddhatteroo7:
Looking to reflash the stock sprint ROM in order to hopefully fix my GPS issues. If I flash the stock ROM will I lose the carrier unlock I've done on my phone? Thanks.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Ophiuchus_New:
Stuck at Recovery Booting

While trying to install TWRP while I already had CWM, my phone is now in a boot loop at the Recovery Booting screen where "Recovery Booting" is at the top left in blue. I had been trying to install the GPE lollipop rom that was made for the spring galaxy s4. When I flashed TWRP from the app, it said it was successful. However, when it went to reboot it recovery it went into the boot loop. All help is appreciated, Thank You!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] imaxuout:
sprint gs4 unlock

HI, i have a gs4 from sprint, i am not sure if it is running on a custom rom or stock i would like the stock rom for it and i would also like a step by step guide to flash it and then a step by step guide to unlock the sim for domestic use and run metro pcs..

anyone help please!!!!!!!!!!

NOTE I AM NOVICE TO ALL OF THIS IN OTHER WORDS I AM A NooBIE i don't know what more than half the stuff mean ...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] KFloyd:
When all else fails, Odin usually succeeds ;)

get the tarball here: http://teamw.in/project/twrp2/178

search youtube for vids (I can't find a good S4 specific TWRP install how to but they are all pretty much the same, PDA mode, etc)

You could also try the dd method listed there (I prefer odin, never tried dd manually) but that's basically what the app does and it appears to have not worked.

Stock rom, rooted

http://xdaforums.com/galaxy-s4-sprint/development/rom-stock-rooted-ng2-t2866864

Do some more searching and reading.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] imaxuout:
gs4 sprint unlock noob

HI, i have a gs4 from sprint, i am not sure if it is running on a custom rom or stock i would like the stock rom for it and i would also like a step by step guide to flash it and then a step by step guide to unlock the sim for domestic use and run metro pcs..

anyone help please!!!!!!!!!!

NOTE I AM NOVICE TO ALL OF THIS IN OTHER WORDS I AM A NooBIE i don't know what more than half the stuff mean ...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] KFloyd:
As I responded above, you gotta read man. If you just go mashing buttons while just shouting you're a 'NooBIE' you'll brick your phone.

Take the time to learn what it all means...

Start here

http://xdaforums.com/wiki/

http://xdaforums.com/showthread.php?t=2303917

http://xdaforums.com/showthread.php?t=2646826

If you don't know what this all means, what are you trying to accomplish? People will help but they aren't here to spoon feed.

We were all noobs at one point ;)
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] levyathos:
The phone is working using Galaxy S5 ROM, but I can't get anything else to work. I just wanna revert back to the normal, factory ROM, and when I try to do it via Odin, it will always fail, and I'm a 100% sure is because it has been Write-protected. I need to get rid of that, and go from there.

---------- Post added at 12:02 PM ---------- Previous post was at 11:55 AM ----------

Where do I get this? Is it installed with Odin?

---------- Post added at 12:08 PM ---------- Previous post was at 12:02 PM ----------

Where do I get this? Is it installed with Odin?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] KFloyd:
Try here

http://xdaforums.com/galaxy-s4-sprint/development/rom-stock-rooted-ng2-t2866864
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] ahvdesign:
Two Recovery Programs

Hello all and get ready for the dumbest thing I may have ever done!

I had Clockworkmod installed and working fine with a fancy new ROM installed (Google Play Edition 5.0.1 I believe it is called) and I was having issues getting anything to read my external SD card. I read somewhere that TWRP had an option to install a patch for this so I tried to install TWRP using their app in the Play Store. I now realize I have two recovery programs installed and I cannot get into recovery at all, it just hangs. I'm hoping I don't have to go through too much to get one recovery option again (preferable Clockworkmod as it has been with me for many years) but have no clue where to go to remove just TWRP (yes, even after some Googling around).

If anyone can point me in the right direction I'd appreciate it greatly. Also if anyone has gotten Apps2SD to work on 5.0.1 properly I'd love to know how you did it. It feels like a waste having a 32GB card I cannot use. :)

Thanks for any help ahead of time!

Also I forgot to mention I see someone ran into a very similar issue above me. Is there any specific guide to follow to get it going with Odin? I rooted my phone a little over a year ago so I have not touched the program since and would like to have little to no risk of bricking when I give this a go again. Maybe there is a specific ROM I should look to flash? :D
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] krich112:
Auto prime
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] KFloyd:
Better link - stock

http://xdaforums.com/showthread.php?t=2338919

[FIRMWARE][ODIN] All Sprint Firmwares {2/13/14} and instructions on how to use Odin
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bob122577:
Hello

I have an SPH-L720 Galaxy S4 and I’ve rooted every other phone I’ve had (including another version of the same model). I was attempting to install the JFLTE- GPE Lollipop rom. I installed TWRP through ODIN. Unfortunately after trying so many different methods, I can’t remember if I installed SuperSU the normal way or not (I think this may have something to do with the issue, however, I did install it through fastboot and TWRP).

After flashing the new rom (and ever since) my phone will not boot the OS, it just boots straight into TWRP. I can get into recovery and download modes.

I’ve tried other roms. I’ve tried restoring a backup. I’ve tried returning to stock. I’ve wiped and formatted. I read up on Samsung attempting to block rooting and tried applying that solution. I do have the “kernel/recovery is not seandroid enforcing” error but from what I’ve read and done this doesn't seem to be the issue.

No matter what I do I can never get any further than recovery mode. I did my damnedest to fix this myself, including searching similar issues but the solutions I found have not helped. Using CF AutoRoot seemed promising, but then I ran into the "footer is wrong" error.

I come to you as a man with no more options. There’s gotta be some way to save this. Even if it means staying on stock forever.

Any help is appreciated.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] KFloyd:
(I'm completely stabbing in the dark)

After a quick googling, I have to ask: is the JFLTE- GPE intended only for the I9505 (Qualcomm) S4? I'm not familiar with that ROM.

I see you tried other ROMs, did you try a JFLTESPR ROM?

(reaching) Did you try the TWPR fix permissions?

Are you sure TWRP is correctly / fully installed? Maybe try CWMR?