yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] goodbye hppalm:
I erased all of them
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] uberbdon:
My friend has this model of phone and I'm trying to find a source to flash his phone back to stock after he bricked it. Any help would be appreciated. I can't seem to find much in the way of the L720T, only the L720...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Would help if you tell us his software version . MK5, NAF, NC6?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] dom2570:
Both can be downloaded for odin use from sammobile

---------- Post added at 02:24 AM ---------- Previous post was at 02:24 AM ----------

NAF and NC6
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
I can link MK5 if needed, but not for a long time.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Tavix92:
Hello ! :)

Is somebody working on sim-unlocking the L720T ?

I have one, but I live outside of US and I want to know if I should wait for a fix on XDA or pay a service center (alot of money) for a unlock by IMEI.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] silverfox88:
I will try to be carefull, if you decide to go with the pay service, also let me know how that go. Am also have two sph-l720t and live outside the us
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] uberbdon:
Sorry. I ended up finding the correct firmware and flashed it via Odin. Now to find a usable ROM...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Most touch wiz Roms work with triband model but you lose spark compatibility. Can still get LTE but not the Spark band.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Added to OP
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
What's up guys anyone have a clean backup mine got corrupted somehow mk5 if possible
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
I've got the tar of MK5 at work if that's any help. I could put it up in my dropbox for a bit if you like...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] youngnex:
Sammobile.com search firmwares. BTW guys i updated to the LG G2. I will. Syill. Be around as the s4 still alive.

Sent from my LG-LS980
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
Yeah sure I guess I can track down computer and Odin
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Hey bro, sorry to hear you still don't have a computer. Its been along time without. Do you plan on getting one soon and can you be on team Hellfire without a computer? We sure could use your expertise on the 720T.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
Hellfire has been put on hold but OctOS is live and kicking and I've been building jflte Carbon. As for computer ehh things are tight. I want to get mine fixed just need to send it out to get it fixed.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] apeh2000:
I had a regular S4, and recently dropped it so needed a replacement. I bought the Spark S4 thinking it would be a sweet little feature to have, but all the ROM and software incompatibilities with the standard S4 are making having the Spark S4 really annoying. I'm going to ebay my Spark S4 and buy a regular S4. There are a ton of ROMs out there for the standard S4 but few and far between for the Spark S4.

just my two cents.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] goodbye hppalm:
If anyone has a NAF or NC6 tar file can you please gt in touch with me, I need eathier one bad, I cant get into Recovery but I can odin in, I tried flashing Philz and it worked fine but it sends me into a bootloop so i cant get back in. Ive checked sammobile and Naf or nc6 arent on there
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
They are on Sam-mobile.

View attachment 2750291
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Sezmar:
Here are link for my dropbox with both NAF & NC6

https://www.dropbox.com/sh/gj4e6ruzcjvbubi/a_m1HR7sHS
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
I have talked to cnexus he will be working on doing stock rooted oxidized zips for us I have MK5 right now I am back on stock flashed in Philz recovery
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
That's good news. Thanks much
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Ebstein:
Awesome thread but........

I Have gs4 l720t running 4.4.2 nc6 & using odin 3.07 & the CF-Auto-Root-jfltespr-jfltespr-sphl720.tar.md5 was able to get a stable root with super user. As soon as I open super user it fixed the knox issue for me. Now the fun part installing the latest TWRP 2.7.1 again using odin 3.07 & there was no issues except how to boot into recovery. First success was goomanager lol. You can boot to recovery from goo no problem but does you no good if you brick your phone. After some trial & error I found only using volume up & Home button works perfectly to boot up twrp from powered off. :victory: BTW.... would of post all the links but first time poster lol
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] frukyyy:
Great! The disappointment lays on the fact that there's no functional ROMs for T. I am aware of some trials and progresses but since sacs pre KK no ROMs prforms well. Hence, what's the point of root. Maybe the sdcard card fix and adfree are a little consolation.

Or you can cook a ROM for us the dirty dozen.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Tether is big point of root
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] hakeem0996:
See it's the opposite for me .just updated my phone to 4.4 and CF auto root doesnt work for me .tried it a couple of times and still my phone can't be rooted .Does anyone know a fix to my problem ? I'm on NC6 thanks
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mogul420:
I just successfully flashed TWRP 2.7.0.1 following this exact steps. Flashify did it flawlessly.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
Yes sir
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] sew3521:
My number 1 reason to root is Titanium Backup. Xposed makes for a lot of fun as well.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] ZigZiggo:
CM11 on SPH-L720T...

Hey guys,

I have the original SPH-L720 and have been active in the CM community since CM7 (all the way back to my HP touchpad and SGS2). I just got the wife a SGS4, and like some of you, I was surprised that Sprint/Samsung "refreshed" the SGS4 with a new radio interface.

I will confirm, however, that CM11 for the SPH-720 does work in spark mode, but the ROM doesn't currently implement any mode checking on the radio, so it does not show that you are in spark mode. After flashing both my (720) and my wife's phone (720T), her phone, in the same location of the house with roughly the same db signal, gets anywhere from 50% to 150% faster downloads and consistently 3x as fast uploads than my 720.

So if you are worried about loosing spark capability, it doesn't appear that you will. You will only loose the indication of spark connectivity.

This makes sense as all of the handshaking and connection processes are handled within the firmware of the radio and the data is passed from the radio to the ROM in a single stream, so the 3 band handling is transparent from the standpoint of the ROM (unless you are stock, in which case the stock ROM will interrogate for spark connectivity for indication purposes only).

And if you are curious, I ran an average of 10 tests on both the stock ROM and CM11 and there was no difference between the two (with the stock ROM showing spark connectivity)...

Just FYI.

So if you are flashing the ROM, you can use the 720's ROM just fine. If you decide to flash anything other than that (i.e. baseband/radio firmware), make damn sure you have the 720T version, else you will loose all connectivity. Everything else about the 720T is identical to the 720 outside of the radio from what I can tell and that was comparing all of the partition information/emmc blocks...

Z
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Zigziggo,

Thanks for the great info. I've wandered for a long time if users (that flashed a 720 ROM) were only losing the spark indicator and not really losing spark, but had no way of testing as I only have one phone.

Your testing methods are a strong in indicator that users are not actually losing spark. What we need is a user with a stock 720T who is in a known SPARK provisioned geographical area (gets download speed of over 30Mbs) to flash a 720 ROM on their 720T and see if the download speed remains over 30Mbs. My understanding is that a spark phone in a spark provisioned geographical area will get up to 60Mbs.

In any case, your info is very helpful. Thanks.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
[MENTION=5662793]bgmg[/MENTION] check pm

---------- Post added at 05:30 PM ---------- Previous post was at 04:35 PM ----------

Baked kitkat I built in Madison ohio

---------- Post added at 05:31 PM ---------- Previous post was at 05:30 PM ----------
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
31mbps can be achieved on regular LTE.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
Not in my area max has always been 12-17

---------- Post added at 08:38 PM ---------- Previous post was at 08:32 PM ----------
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Its been tested and stated that the fastest is 33MBps possible download speed. Now with spark it is at about 60. So the screen shot of 30MBps could be either of the two.

I've personally hit a high of 27-29 on the regular LTE.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
You just happen to be in a better lte area I look at sprint spark like the cable company internet speeds UP to 60 so like you said it could be spark but when 12-17 is what has been normal and I see 30 that is double what has been here and also in this area where they are activating LTE VERY SLOW just like they did in Charleston SC where I only seen 17 max for LTE on my S3
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
View attachment 2777588 Thats what I was thinking. Im pretty sure it is Spark but it very well could be regular LTE. He should get a s3 or a non sprint spark compatible phone and run a speed test in the same area. Just got this speed.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] glassman326:
Spark and SlimKat

Fwiw, I live in San Antonio , a spark area...

I am on SlimKat...NC6.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Thank you for sharing. There is our answer. It doesn't break spark.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Agreed. 50Mbs is definitive.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] sew3521:
Wow! This is huge news. We should make sure this is added to the front page of the thread.

What ROMS are popular now? I used to rock TriForce with the KT kernel however TriForce has not been updated in some time.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Added newest spark findings to ROM section of op and gave glassman326 acknowledgement.

When you all read it.. If you think it needs adjustment, let me know.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] glassman326:
Just a few notes.... I am not sure of true triband connectivity. I do know the speeds I am getting on Slim are equal or better than stock TW. More specifically, i dont know exactly which band(s) I connected to. I do know the x800 band is not fully implemented in my area yet... Sigh.

Mine +50mbps speeds could be the 2.5ghz and 1.9Ghz bands in tandem, or not.... If anyone has a good way of determining which band a phone is connected for AOSP, please share, as the engineering screens are not available.

Hand off is flawless between data and voice though. Also the NC6 update for wifi-callng is not available. No worries for me as my speeds and unlimited data with sprint have afforded me the luxury of not even connecting to my home WiFi in weeks.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daisychick:
has anyone found a free wifi tether that works with rooted NC6?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
I haven't seen any free tether that works with any version. I don't think.

---------- Post added at 06:02 AM ---------- Previous post was at 06:01 AM ----------

Wifi tether router is the only one I work to work. It's in play store but it's not free.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Pioneer305:
Wifi tether router is well worth the $.

Sent from Sph-l720T NC6 with xda app
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Junkyardjames87:
Does the wifi tether router really allow true wifi tethering or is it an ad-hoc only thing? I really need the native wifi working but ill pay for the application if I can do true wifi tether.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
Not sure of the difference but I can use mine on my ps3. No problems
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
8

Not sure what ad-hoc wifi really means, but I would say it is as real a wifi network as I've ever seen. It broadcast a ssid and allows 8 or 10 (can't remember which but it's the same as native) devices to connect at one time. It supports MAC address filtering as well, and you can turn off the ssid broadcast if you want. It's about as real wifi router as I've ever seen.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Pioneer305:
I dont run adhoc on mine as far as i can tell it runs just like a router. Have not tried tranfering files and accessing other computer files through the app.

But ran 2 xbox 360s an 2 computers at the same time through it.

Sent from Sph-l720T 4.4.2 with xda app
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
I've connected 6 devices at once. 5 tablets and one pc.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Junkyardjames87:
OK, I did it. I bought the Wi-Fi tethering router app. It worked right out of the box. Now we just need to figure out why it works but none of our stuff does. Looking into it.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
If by "our stuff" you mean the native tether for 720T, that would be great and we would sure appreciate your help.

I tried installing the X tether module in the xposed framework, enabled the module along with the sql lite solution adding tether_dun_required=0 to the settings.db but everytime I turn the native tether on, It automatically changes back to tether_dun_required=1

And yes I have root, and I saved the changes. It just automatically changes back to =1 when I try to turn the native tether on.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
My ocd curiosity is bugging me. Please clarify, what did you mean by "our stuff"?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Junkyardjames87:
"Our stuff" is everything we've developed for the 720. Non of it works for the 720T. I see over and over again the tether_dun keeps resetting back. There's something else going on here that we're missing.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Awesome thanks. We appreciate the support for the 720T.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Lfc54:
Unlock it

Hi, someone can explain me how can i unlock my SPH-L720T to use in France ? Thanks
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Not possible right now. You're out of luck on that. Only able to unlock the regular GS4.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Lfc54:
Thanks, and can i unlock and use the SPH-L720 like you have ?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Thanks Daniel 4653, I updated post 1 "unlocking for use on other carriers" section to help reduce further questions.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
I noticed after the last xda app update, that my xda app is no longer recognizing the color tags on post 1.

I'm wandering if anyone else is experiencing this problem. Did anyone else lose the colored headers on each section of post one of this thread?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Yes you can unlock the SPH-L720 and use it international.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Lfc54:
And my last question : the Samsung-Galaxy-S4-SGH-M919 can be used in France in 3g/4g and he can be unlocked ?

Thanks :)
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] kingofmilk:
MDC or MDL

After countless hours of researching and trying to get this thing to work, I have been unsuccessful. I am currently running a 4.3 with an SPH-720T and my baseband is staying at an NC6. My question to remain on unlocking the sim card, is was the MDL or MDC firmwares ever released for this? Has anyone been able to get this to work? I am currently working in Germany and do not want to keep this cheap little phone when I already have this GS4.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Sorry not possible on 720T yet. No one has figured it out. For now, only possible on 720.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
MDL and MDC did not come on this device. 4.3 came with MK5, IIRC.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mogul420:
If the OP could be updated with the information that has been posted it would be great.

Stuff like working ROMs and Recoveries should be updated at this point.

Thanks.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
To my knowledge the OP is current (both the roms and recoveries section). I updated the roms section with the latest spark information last week. If you feel something is missing, please be specific
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mogul420:
I'll pull a quick example:

I did report a few weeks ago that I was able to flash TWRP. Not there at all.

I know we are supposed to search before we ask, but this T model has brought more confusion than anything else. Devs aren't cooking ROMs to fully fit this new hardware and searching for hours inside threads when you could have it all in the OP would make things easier for the rest. Been around for many years and still had a hard time deciding as I was putting pieces together from this thread and others.

Another thing is about flashing ROMs that are not fully compatible with the T. In some cases you go directly to Digital Roaming, but in others you might brick the device. If there's a thread dedicated to that, a link on the OP would be great.

Other than that, great job on maintaining the thread. Thank you.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
OP updated and thanks
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
This is kinda off subject but I recently (2 days ago) notice that I can no longer hover over the created folders on the home screens and the app icons spread out so you can see what's all in the created folder. Now when I hover over the folder it does nothing. Have anyone else experience this or know of a fix for it. Air gestures is on and they work every way else except the home screen. And I also noticed that I can now move files from the phone to the sd-card using the phone now. I used to have to do this on the computer. The phone would say unable to complete this process or something like that. I can move apps, pictures, and music. Lol maybe I playing catch up but this was new to me.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Porky munoz:
I recently installed a ROM and didn't like it to much. So I went to recovery mode (philz) and recovered my back up. but this time when I went to recover I had no net work. None what's so ever :( only time I have network now is with carbon ROM. I wouldn't mind the ROM but only thing that kills it for me is when I make phone calls. The screen goes black and I can't hang up the phone. I went to setting and made it hang up by pressing the lock button but still cant go on speaker or look at my phone during a call.. I know I can flash stock firmware but my laptop is broken and I'm pretty much caught between a rock and a hard place.. Pretty much my question is how can I get the network back on my first recovery?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mogul420:
try going to stock and do a ##72786#. when that's done, flash something like C-Rom 6.6 (4.4.2, Carbon based, but so far its stable). I also installed Vanir (4.4.3) and it was a little sluggish, but everything worked.

Im flashing ROMs when I have some spare time and see how they run. So far I've done those two.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] shadowswittness:
Loss of data after using CF-AutoRoot

I lost all data after using cf-autoroot. I did some digging and found a way to restore data and spark.

Samsung made an app to fix this. Go to the play store and download the "refresh customization" app. Complete option 1 and then 2, this will cycle you phone on and off a number of times and restore the Sprint Zone app, missing roaming settings, and Sprint Spark to your phone. When this is done, go into the Sprint Zone app and view your device and check the dashboard, make sure you are current on all software updates, and install them if necessary. See if this works for correcting connectivity issues. If not enter ##72786# on your dial pad and let it cycle off and on once more.. Hope this helps.

Source

https://community.sprint.com/baw/message/801862#801862

Shadow

P.S. I was able to gain root using cf-autoroot. I used root checker from playstore and its rooted.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Porky munoz:
I installed vanir 4.4.3 everything works except for it doesn't detect my SD :\ anyone else having this problem with this ROM??
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Added to OP.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
I have a question. If I flash a rom and I decide to go back can I just nandroid back to where I was or is it a little more to it than that. I installed philz recovery and I even did a titanium back up. I want to try some roms but I don't wanna mess up what I have now which is stock but rooted.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] GAPO:
You are a lifesaver. Thanks!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] htcfan4l:
[ Q ] ALBUM ART LOCKSCREEN ?

So I just recently got this phone about a week ago and coming from the s3

Anyways the when the s3 got the kk update album art lockscreen would work with pandora and all other music and music apps

Now that I have the s4 the album art lockscreen dont seem to work with any of the apps ?

Any idea ?

Im rooted sprint l720tvpubnc6 and have all the same basic bloatware removed as I did with my s3
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] scottypeterson:
Does this include 4.3 tw roms? I mean, since I'm on 4.4.2 nc6 could I install a 4.3 tw rom and only lose spark? Or no because of the different bootloaders. Thanks
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
U can't down grade. Once on 4.4.2 u can't go back to 4.3 if I remember correctly
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Junkyardjames87:
So watching the settings db I've played around with the permissions and with 0000 it still gets changed by something. We need a copy of the settings db file from someone who has paid for tethering for comparison.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
Where do u find those settings. My tether works great

---------- Post added at 09:45 PM ---------- Previous post was at 09:44 PM ----------

Wifi tether router app works wonders
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Junkyardjames87:
Are you using the Wi-Fi tether router or the built in Wi-Fi tether that came with our phones?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
Wifi tether router app.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] frukyyy:
Does this work in custom ROM?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
as long as dialer codes work, yes.