yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
It does NOT install a custom recovery. It says right in the OP of CF-Auto-Root -

What's installed

- SuperSU binary and APK

- Stock recovery

http://xdaforums.com/showthread.php?t=2291827

EDIT: It's possible that some are not reading this (below) until AFTER having coffee or similar... :silly:

---------- Post added at 08:18 AM ---------- Previous post was at 08:11 AM ----------

Aha! -
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
If I re-read that correctly, it says it installs a modified (same as custom it sounds to me) recovery, then installs su binary, then reinstalls stock recovery.

So it sounds to me like it does install a custom/modified recovery temporarily to get root.

----------------------------

EDITED TO FIX WORDING
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] easyrider77:
That's probably a misread on my part. At glance I probably saw custom recovery, and just triggered twrp or philz or cm recovery. It IS a custom recovery of sorts I guess you could say but it's only temporary.

That make more sense now why I had to Odin in twrp :). Man it sux getting old heh
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Indeed. Lol
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
The custom recovery is required to install the su binary, which is what grants root privileges. From one of my Linux boxen -

jerryg@gandalf:~ > whatis su

su (1) - change user ID or become superuser

The concept of user or root/superuser when in recovery is moot. It's all at the equivalent of root/superuser level or you couldn't do the things you do there.

Stock recoveries have a very limited user interface (read - don't let the user shoot himself in the foot). They're made to install very specific types of packages, like an OTA. But not something like the su binary.

A custom recovery is an interface for doing many different things, at root level. Therefore, letting you shoot yourself in many different parts of the body... like flashing CM11, or a theme, or an update to SuperSU, or formatting a (disk) partition (aka wipe).

HTH,

-Jerry
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
If I understand correctly that makes perfect sense.

What I think I understand is that basically both methods use a modified recovery to gain root access needed to install the su binary which then takes over root/superuser-permission-granting.

Does that sound right to you?

Thanks
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
Yes, correct. And FWIW -

Any recovery has root privileges by default, or it couldn't do the things it has to/been designed for. Choosing to boot into Android or recovery is actually a form of dual-boot. A recovery is a very limited OS. To the best of my knowledge, the stock recovery will ONLY install packages that are digitally signed by Samsung, and have a specific configuration. This configuration does not include the ability to flash the su binary/package.

A custom/modified recovery will let you flash su and lots more.

And FWIW/FYI, some equivalences at the OS level:

root/superuser (Linux/UNIX/OS X) = Administrator (Windows) = system (OpenVMS)

I'm actually a bit glad that I've stayed stock/rooted on my 720T, I used to try/flash so many different ROMs on my EVOs that I had a pre/post flash checklist... :eek: Now, I have more free time. :D

I even did some ROM reviews. Here's one if you're interested -

http://www.pocketables.com/2012/10/rom-picks-clean-rom-be-2-3-for-the-htc-evo-4g-lte.html
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Awesome thanks. First thing I had to do is Google what does FWIW mean...Lol...Now that I know what FWIW means, I understand everything you said. It makes total sense, and I understand much more now.

From a Security risk point of view, there is little to no difference whether I use cf-root or the custom recovery method. I suppose either one could theoretically be designed to be malicious (again theoretically). I'm not saying any devs have done that. I just always think of security risks before making decisions. It's my line of work

I just don't want my stock OS kernel modified, and it sounds to me like that is not an issue currently with these methods.

With this new knowledge, I would prefer to use cf-root or cf-auto-root because I want to keep the stock recovery as well. I've no interest in flashing roms at this time, and I want to be able to upgrade to future stock releases at my discretion.

The only things stopping me now is:

1) I understand cf-root will wipe my device and I don't have time to rebuild everything atm

2) I'm concerned that tripping Knox will lower the resale value of the phone in the future.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
You're most welcome! :good:

1) I used CF-AUTO-Root (from the link I posted, you should too). Where does it say it will wipe the phone? I don't remember that happening to me (it shouldn't from the description of what it does). It pushes the binary to an existing partition, and there's no need to wipe /data or /system or anything else. (FWIW :D) - I believe recovery has its own partition.

2) Knox is for enterprise/corporate stuff. IMHO, the 720T is an orphan device. There are no specific TW ROMs for it, and since the S5 is now out, the resale value is in the pits. That's probably where all the devs are going anyway (haven't checked). Sprint only offered me $36 for my EVO 4G LTE in mint condition. Don't know how much a 720T will go for on Ebay...

Cheers,

-Jerry
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] easyrider77:
I saw a rom that has everything s5 on it, sadly though it's not for this phone :(.

Be nice to see someone port it over to work on this phone though, but I kinda doubt that'll happen.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Googled and learned what IMHO means :p

1) I'm batting zero here...lol. After reading your response, I think I remember you or someone else in this thread saying they used cf-auto-root or cf-root and that it did not wipe the device. Starting to feel stupid here. .lol. Maybe it's on the single kernel single partition devices, but I remember reading about cf-root for my friend's htc a couple of months ago, and it said somewhere on the cf threads that it wipes the settings and apps. Just figured it was that way on all devices. My bad I guess.

2) Search for sph-720t on eBay. Currently selling used for average of $150 in excellent condition and sometimes as much as $200. Mine is in mint condition. That being said... eventually after some more months what you have said will certainly be true, and the device value will be meaningless. I'm still under a year and have warranty for now as well.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Osirus71:
Never sell you phones back to Sprint or BestBuy...I sold my girlfirends S2 for $70 on Craigs list and I sold my EVO LTE for $180.....Just mention that its already Rooted, and i will usually go for more....;)
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
Thanks. I kept it, no worries! :cool: :good:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
If its rooted and Knox intact, I'm guessing it will go for more than rooted and Knox blown. That way the phone is still of value to enterprise users (more customers).

--------------

EDITED.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
OK I'm going to make 2 more stock deodx rooted ROMs NC6 and NG5 I should have them up in a day or two
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] easyrider77:
Nice. For the T variant right? And is it tw or like aosp??

I'll probably give me a shot when you get em up.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
Yes 720T that's why the basebands the 720 has different ones I figured maybe someone will them them later. I'll pull the modems/basebands out all so and link them
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] easyrider77:
Cool, I'll be watching. I just noticed to my sig, had to adjust it and put a T on the model heh
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Great article published 10/24. Make sure you read this article all the way to the end. The best stuff is at the end.

http://www.informationweek.com/mobi...g-knox-is-weak-researcher-says/d/d-id/1316954
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
It is not listed on this website (sprint) yet.

So I don't think it's been released
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
http://d-h.st/LXs this is ODIN modin.bin -NC6- unzip and flash with ODIN

Stock rooted deodx NC6 uploading sory for delay. slow speeds
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Added to download section of op.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
you might want to change that the link is for the NC6 MODEM ONLY.... the rom will be up later

---------- Post added at 10:04 PM ---------- Previous post was at 09:50 PM ----------

The stock root did not flash with twrp link removed
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Sorry I'm not understanding what you are telling me. I think you are telling me I need to change the description of the link I already added to op to NC6 MODEM

And I'm unclear what this new url you have given me is.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
Nevermind about the modem.bin file miss read but the new link is for the rom I'm about to flash and test that it boots

---------- Post added at 10:24 PM ---------- Previous post was at 10:11 PM ----------

Stock root nc6 did not flash with twrp removed link will play with more later
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Are you telling me to remove the link I already put in the op? If so, I just did. I can add it back if thats not what your telling me.

As far as the new link you have me. I'd rather not post anything until you test it. Saves me double work :)
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
No the modem.bin is fine to use its the stock rooted rom I was trying so the modem is fine to keep in op

---------- Post added at 10:44 PM ---------- Previous post was at 10:44 PM ----------

Sorry for any confusion
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mrpurpose:
secret codes

have any1 tried the 179 secret codes in the app called phone info from play store. Alot of service menu codes but I dont know what alot of the service menus are for our phone. Noobie here!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Added back to op as NC6 modem
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] droidzer1:
TWRP root - No CF Autoroot - Yes

I've got the latest NG5 (this phone had an August manufacture date) and I tried the TWRP root method but it didn't work. I did not retry it as suggested but instead went to CF-Autoroot for the 720T since Chainfire has one specifically for the T model now Here Put the newest TWRP on after CF's autoroot which is now at 2.8.1.0 (older one is 2.8.0.1 to avoid confustion). TWRP is awesome but it just didn't work for rooting on this one.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
This appears to be a little newer version than what was already in the op.

Added to op with credit to droidzer1
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bthorne79:
Got the stock rooted deodx nc6 to boot going to test out little more before I post if everything works out I'll make a debloated one also
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] easyrider77:
Awesome!

I found a rom that works on this t variant and I'm going to try and put in the s5 launcher and such if I can. I'm taking did out of this rom I'm on right now. The files are just apk files mainly ie: touchwizlauncher.

Should be a fairly easy thing to do. I also found a site to download some other s5 apps from.

As you can see from my sig this rom is meant for a different s4 lol so ignore the sig for now.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] zlebors:
any update about L720T international sim unlock to use gsm network?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
No, the latest intel is on post 1300 on this thread.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] kmani.k78:
International unlock

I have successfully unlocked SPH-L720T using the following app.

https://drive.google.com/open?id=0BzkFD1TXlowVTmFMdjNOaGYxRUE&authuser=0

The above app created using the ideas from Sprint S5 unlock discussion thread. Especially from aalyatim, tewilove , ecs87 & others. Thanks for their great help & discovering this bug/flaw/option.

Hope this helps others also.

Thanks.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
What exactly do you mean by unlock. Is this a root method or something different.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] cris14:
So funnny, an app that says unlock and then unlocked, ????
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] zooka:
Hi. I have just unlocked Samsung Galaxy Mega 6.3 from Sprint (SPH-L600) with this method. Big thanks to the author!!!! You're the best!!! Will try on Note 3 from Sprint. Will keep you posted!

---------- Post added at 06:42 PM ---------- Previous post was at 06:31 PM ----------

Also works on Note 3 from Sprint USA (SM-N900P). GREAT!!!!
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mkardash:
Tested on l720t. It works. Just install and push button. Operator - Kyivstar (GSM). All works fine Internet, MMS, calls, SMS.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] zooka:
mkardash: Do you have data service?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mkardash:
8655

Operator provide only GPRS.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] GAITACAPO:
So fking great

1st: Sorry my english

2; how can use the app u create?? , where i put the app?

Sorry for this my english is limitated and my knowledge of development worst..
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mkardash:
Here is thread about unlocker - http://xdaforums.com/sprint-galaxy-s5/general/sprint-samsung-unlocker-unlock-sprint-t2928250

Just read first message in this thread, download app, install, run it and press appropriate button. Reboot your device. Done.

Note: My l720t was rooted before.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] zooka:
It works without root as well. My phones weren't rooted.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
post 1355

Post 1363

Comparing these two posts:

These appear to be different files. Both of you say they will unlock the 720T. When you say unlock? do you both mean unlock for over seas carriers?

Trying to figure out if I should add both of these to the OP. Are they really different or are they the same tool. I don't want run them on my phone because I don't need to unlock.

Please advise.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] cris14:
I ran the first one but didn't believed that it worked and not even tried my int sim,then I ran second one and it worked for international, seems like are different but don't really know
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Thanks godly one or both of them will respond.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] mkardash:
Application author (or one of them) the same on both posts, Aalyatim. So I think this is the same tool on different develpment stages.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Added to op with post credit to kmani.k78 post 1355 and mkardash Post 1363
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] joesake:
Spark issues

I'm in the Kansas City area where spark is currently being rolled out. I have an issue where I am not sure if it is unique or not. I will ask the question before the explanation as it is a bit convoluted. With a rooted S4 720T, is it possible to set the phone to connect to a specific tower or APN, or to force it to standard LTE rather than spark?

In my house I get a very poor spark signal, and the same thing happens multiple places around town. It is one bar and I can't really use data with it. My wife has an S3 and my son has an iPhone 5, both of which are on standard LTE. They have a great LTE signal and have great data speeds in the house. Customer service looked it up for me and see that the tower closest to my house has standard LTE. My phone connects to this tower for calls and has no problem. A tower that is further away has spark and the signal is weak and basically unusable where I am. The problem is that they did not make the algorithms in the phone intelligent enough to let go of the spark connection when it is unusable in favor of a stronger LTE signal. The result is that I cannot use data in the house unless I force it to CDMA mode which is 3g only. It will be several months before they plan to upgrade my closest tower to spark. Unfortunately there is no native setting to force the phone to standard LTE. This is why I am asking if there is any way to work around this issue with a rooted S4 720T. I am on 4.4.2 NC6. Thank you for reading and any suggestions.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] vosongcongtu:
L720T made ​​this way can be used gsm / WCDMA so your not.

The above app created using the ideas from Sprint S5 unlock discussion thread. Especially from aalyatim, tewilove , ecs87 & others. Thanks for their great help & discovering this bug/flaw/option.

Hope this helps others also.

Thanks.[/QUOTE]

L720T made ​​this way can be used gsm / WCDMA so your not.

S5 only way out for LTE?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] easyrider77:
Just out of curiosity, I'm looking for a systemUI.apk for for the sprint l720t phone. Could anyone rooted on stock ng5 send me that file or post a link to it to download?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] vosongcongtu:
L720T made ​​this way can be used gsm / WCDMA so your not.

L720T made ​​this way can be used gsm / WCDMA so your not.

S5 only way out for LTE? :D

>>>Hậu Đặng<<<
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] kmani.k78:
Yes. Using this app will unlock L720T to use with international GSM/WCDMA. I am not sure about domestic GSM use.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] projectexonaut:
i need some help

Doed anyone have a flashable modem to downgrade from 4.4.2 modem to a lower one so i can unlock my phone? Thanks in advance. I also dont care if its odin file modem just need one for unlock please. Ill read for reply's tomorrow
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
There is no modem that allows the triband version to access the necessary settings.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
At your own risk, you could try an old modem from the 1st generation non-triband 720 phone. Just a thought.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] projectexonaut:
okay but

But the ssu app requires 4.3 or lower i think because 4.4.2 has a sim hardlock. Im just looking for the tar file of the modem for naf or mk5
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Galaxy tools just updated its unlock feature to support newer model galaxy phones, so it may work as an unlock method on 720T now also.

They also added the msl reader in the upper left corner.

I have to admit that Galaxy tools has become a pretty great tool.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] rizapn:
I'm on 4.4.2 (NC6) and successfully unlock my L720T GSM function using that ssu.apk ...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
No the update is being rolled out until March 10th. Give it a few more days.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Just installed wanam and framework. How do I get the notify clean module? I'm new at wanam.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
Look here -

http://xdaforums.com/showthread.php?t=2327541

:cool:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Thanks. I've been doing a lot of reading on the url you posted. Does installing and using the module trip any flags? Are they any significant risks?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
I'm personally not aware of any module tripping a flag. I don't even know if it's possible (I'm still a Sam-noob, but I doubt it.). As for significant risks, if you're running Lookout, you should be OK. Anyway, the biggest risk to a rooted phone is usually it's owner... :D
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
I've installed the clean notify module and enabled or in the exposed installer and rebooted. I Don't see any new options in wanam. How is this thing supposed to work?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] robtheslob:
The clean notify module and wanam are two completely separate modules for the xposed framework. Once the clean notify module is enabled in xposed and the phone rebooted you can access it's settings via the modules list in the framework or via the clean notify icon the app drawer.

---------- Post added at 01:52 PM ---------- Previous post was at 01:45 PM ----------

From my limited research on the framework it works by modification of only active ram elements and not writing any actual data changes. So it should be incredibly unlikely to be able to trip the Knox flag even if you tried with it. The custom flag is already tripped by rooting but that's not really a flag at all but a boot time scan for changes to the system partition so can easily be reverted with a reset to full stock flash or tricked with wanam.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
Ok I'm lost. I found and opened the. Notify clean app in my drawer and played with the various options. Nothing has cleared my update notification. Do I have to donate to get more power or something?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] bgmg:
nvm. I figured it out. thanks. The upgrade notification is now gone.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] frukyyy:
I just updated my wife's 720T to 4.4.2. Is it just me or there is no benefits to update to KK on 720T. Actually some things are removed.

I'm sticking with sacs on my phone.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
No real visible changes. Ram doesn't full up as much when not running apps.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
I'm still running stock/rooted 4.3 with a few Xposed modules. For my usage patterns, with 2GB of RAM, multitasking is So Much Better than on my EVO 4G LTE, I'm good. And since 4.4.2 hasn't been rooted yet, why bother updating? :cool:
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Umm there is root for 4.4.2 with CF auto root.

Let me.correct myself it works for the regular gs4 I'm not 100% sure on Triband model.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] td030981:
Yeah and that's why I haven't mess with it yet. Don't wanna mess up anything so I will wait til I hear it's all good.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Pioneer305:
Yeah

Sent from Sph-l720T 4.4.2 OTA with xda app
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] JerryGNYC:
^^^ What they said... ^^^

lol...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] youngnex:
Is Hotspot for NAE confirmed working? anyone here has it working?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
There's been a hotspot out for about two weeks now.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Pioneer305:
Search, read, search again and read. If all else fails read the thread topic. This is for the l720T triband version.

As for your question dainel is accuate.

Sent from Sph-l720T 4.4.2 OTA with xda app
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] VandyCWG:
the big 4.4.2 issues for me:

* Emulated Secure Element for Google Wallet Tap and Pay

* Correct AVRCHP streams for bluetooth (Pandora/phone, etc displaying text on car radios)

* Overall better RAM management