yashsingh1/xdaforums huggingface dataset:
[Verizon Samsung Galaxy S 4] meazz1:
This is from the OP.

Follow the steps to get back to NC5 and root it with Towelroot.

Troubleshooting:

1. Should the NK1 ota update fail consider updating to NK1 by flashing the I545VRUFNK1_I545VZWFNK1_I545VRUFNK1_HOME.tar then continuing from Step 2 above (flash using Odin's PDA slot (AP in Odin v.3.09+)).

2. Download and install Towelroot-v3.apk(this version does not require internet access).

3. Place your phone into "Download Mode" (press and hold the Home, Volume Down, and Power keys until the phone powers on and displays warning screen, then press Volume Up key) and Flash the I545_NC5_Stock_Kernel using Odin's PDA slot(AP in Odin v3.09+).

4. Open Towelroot from your app drawer and press "Make it Rain" to root your device.

5. Power off then boot into "Download Mode" again and flash the I545_NK1_Stock_Kernel also using Odin's PDA slot(AP in Odin v3.09+).

6. Download SuperSU to manage root access. Done!
[Verizon Samsung Galaxy S 4] shawnsingh:
No I was wondering if there was a way to downgrade from nk1 because I want to install the roms that nc5 offers.
[Verizon Samsung Galaxy S 4] ddawson58:
stuck in download mode

Semi-noob here...running Android 4.4.2 onVerizon GS4 I545VRUFNK1.

I followed the steps listed by muniz_ri in OP. Phone came with NK1 already installed (step 1 - check). Downloaded and installed towelroot without issues (step 2 - check).

However when I go to step 3, I enter download mode but the phone just says "Downloading... Do not turn off target!!" and doesn't seem to move from there. Did I do something wrong? Anyone have any advice? I don't want to restart the device because it clearly says not to but nothing seems to be happening.

If it helps, in download mode my top left corner reads:

ODIN MODE

PRODUCT NAME:SCH-I545

CURRENT BINARY: Samsung Official

SYSTEM STATUS: Official

CSB-CONFIG-LSB: 0x30

WRITE PROTECTION: Enable

eMMC CBURST MODE: enabled

Thanks in advance people
[Verizon Samsung Galaxy S 4] skepticmisfit:
yeah its completely doable

just flash nc5 tars in Odin instead of nk1 tars, rooting nc5 is easier and it works with more ROMs (mainly eclipse)
[Verizon Samsung Galaxy S 4] shawnsingh:
If I flash the nc5 kernal can I stay on it instead of nk1 because I want to use the Roms that nc5 offers.
[Verizon Samsung Galaxy S 4] skepticmisfit:
nc5 kernel on nk1 is extremely unstable

nc5 ROM and everything (bootloader, kernel, modem, etc) are completely stable, i use it personally with the eclipse ROM (basically a reskin of nc5)
[Verizon Samsung Galaxy S 4] shawnsingh:
OK so basically flash Kernal then nc5 Rom and I'm good

Sent from my SCH-I545
[Verizon Samsung Galaxy S 4] dgutierrez04:
Like i said in the other thread. U need to downgrade to NC5 to gain root access again. After u do that u will be able to install safestrap. I gave u 2 links one shows u steps how to go back to NC5. After u do that. U follow the instructions on this thread. But here is the downgrade method again. U need to downgrade to get root access again.

http://xdaforums.com/showthread.php?t=2735172
[Verizon Samsung Galaxy S 4] xtacybyme:
im exhausted from this crap they force upon us. thank you for reiterating for me. will give both links a go.
[Verizon Samsung Galaxy S 4] crystalpc:
Worked Great!

Perfect instructions for a streamlined update. Safestrap data restore saved me a lot of time and work. After re-installing my Exposed Framework my customization's were back and working. Thanks :D
[Verizon Samsung Galaxy S 4] Divine_Madcat:
Sadly, i am sure this a battle that will repeat itself much worse in the future. Makers are realizing more and more "common" users are taking to tweaking their phones, and removing bloatware/ads, and that doesn't fit their bottom line. As we go on, expect more devices to be locked down tightly from the start, with even basic root access becoming a huge achievement (we even see it with simple devices like the FireTV...)
[Verizon Samsung Galaxy S 4] pal1221:
Root NK1

I am already rooted and still on version NC5 what what the process be to go to NK1 and keep root?
[Verizon Samsung Galaxy S 4] xtacybyme:
Thanks dgutierrez04 and muniz_ri for the help, I have successfully got my self rooted again. i had to do the full wipe method, i had many unfortunately blank has stopped wokring, and i couldnt press any buttons or screen i was locked up good. So I decided to install safestrap and installed hyperdrive rom.

You all have been much more helpful then samsung, and verizon have been!
[Verizon Samsung Galaxy S 4] dgutierrez04:
Ur r welcome thats what we r here to help each other. Enjoy urself on hyperdrive. And next time make sure they do not update ur phone for u to keep root :)

---------- Post added at 02:07 PM ---------- Previous post was at 01:41 PM ----------

Hey please read page 1 of the OP it tells u step by step how to proceed in gaining root. Please next time try to read the main OP before u start posting how do i do it. Im not trying to sound rude or anything but ur asking for it posting questions like this without reading the OP.
[Verizon Samsung Galaxy S 4] upod111:
So can I just flash NC5, root using towel root, install safestrap, and then install the hyperdrive ROM?
[Verizon Samsung Galaxy S 4] sinner822:
Hyperdrive? I must have read the title incorrectly. I was here for help with the original Iphone.

Sorry I just couldn't resist.
[Verizon Samsung Galaxy S 4] docj:
experience/issues with update?

I'm currently rooted with SS on NC5, thinking about this upgrade method. Was wondering how everyone's experience with NK1 has been so far, or any real improvements/experiences/issues from NC5 so far?
[Verizon Samsung Galaxy S 4] tshelby73:
^^^ would like to know the same. Asked same question in q&a but no responses.
[Verizon Samsung Galaxy S 4] rbird2:
Was on NC5, tried NG6 and never could get it to run properly (crashes, etc). Installed this NK1 update last night and so far it is working fine on my S4.

Thank you for including BusyBox and SuperSu. If a SDcard Fix (needed on 4.4) was also included it would be perfect.

I am including a link to the app I use to fix the 4.4 SDCard RW concern:

https://play.google.com/store/apps/details?id=nextapp.sdfix

Hopefully it will help someone fix this annoying problem with 4.4.

Again, Thank You so much for your efforts in providing us a useable, rooted version of NK1.

Rodger
[Verizon Samsung Galaxy S 4] dgutierrez04:
Well for me it seems a lil faster than NC5 no issues at all it is running nice and smooth.
[Verizon Samsung Galaxy S 4] crystalpc:
performance is about the same as NG6, was hoping to fixed my laggy wifi. Didn't help that issue.
[Verizon Samsung Galaxy S 4] docj:
I followed the OP, going from NC5 root/ss. I'm getting stuck on Samsung custom boot screen on reboot. Any suggestions? Could it be something in my data causing issues? I assume it's stuck, as about 10 min and still on this boot screen...or is that normal?
[Verizon Samsung Galaxy S 4] muniz_ri:
You didn't flash the kernel in the last step of the instructions.
[Verizon Samsung Galaxy S 4] docj:
But I did, and Odin says it passed. Phone reboots, then sticks on Samsung custom/broken lock screen. Weird.
[Verizon Samsung Galaxy S 4] muniz_ri:
Try starting over from step one.
[Verizon Samsung Galaxy S 4] docj:
I pm'd you. And thanks for your assistance & hard work!
[Verizon Samsung Galaxy S 4] Sir_Eagle:
After following this method is it safe to delete Safe Strap? I'm not interested in the recovery or flashing ROMS.
[Verizon Samsung Galaxy S 4] skepticmisfit:
just Odin an nc5 tar, you can find them in the general section
[Verizon Samsung Galaxy S 4] shawnsingh:
Thanks

Sent from my SCH-I545
[Verizon Samsung Galaxy S 4] Serialk1llr:
Wow, not a complete step-by-step walk though. n00bs beware.
[Verizon Samsung Galaxy S 4] muniz_ri:
Warning.....Troll Alert!
[Verizon Samsung Galaxy S 4] shawnsingh:
LMAO

Sent from my SCH-I545
[Verizon Samsung Galaxy S 4] sconnell80:
Muniz_ri I am sorry to ask this but I am a noob and would like to root my phone. Can you walk me through the root by any chance. I have jailbroke an iPhone but it seemed a little easier. Thanks in advance if you can help.
[Verizon Samsung Galaxy S 4] shawnsingh:
OK I can help.

-download towelroot apk

-then install

-then turn off you phone and turn it back on while holding the power volume down and home button to boot to download mode

-then go to Odin and install the nc5 kernal

-the phone shout boot itself.

-Now run towelroot and click on make it rain

-download super su.

-go back to download mode and Flash the nk1 Kernal and that should be it.

Sent from my SCH-I545
[Verizon Samsung Galaxy S 4] sconnell80:
Ok I will give that a try. Sounds pretty easy. I am on the NK1 build already.
[Verizon Samsung Galaxy S 4] Magci815:
Apologies if this is a dumb question, but I want to first make sure I'm not going to screw up my phone further.

So I rooted my Galaxy S4 a looong while back, but one of the OTA updates in the past year or so has seemed to have broken my root access. This is what I know about my phone right now:

- It is the Verizon Galaxy S4 (SCH-1545)

- I'm currently at Android 4.4.2 and I545VRUFNK1

- SuperSU no longer opens (it tells me it is missing the binary and cannot install it, and that I have to manually re-root)

- Root checker pro says that root access is not properly configured

My overall goal is to simply get my phone back to it's pre-root, stock settings. My hope would be to do this in a way that does not void my warranty, as I am trying to trade the phone back into Verizon for cash. I just want my phone to be back to where it was before I did any rooting so that Verizon can't tell so that I can trade it in.

To get to that state, do I need to first fix my root using the directions in post #1 of this thread? Or would those instructions not work for me since I'm currently in a broken-rooted 'state?' Any assistance on this would be greatly appreciated.
[Verizon Samsung Galaxy S 4] muniz_ri:
Flash the .tar file under the troubleshooting section using Odin.
[Verizon Samsung Galaxy S 4] papasmurph:
Just flashed the rooted NK1 under the alternative methods.... only bug is that wifi isn't working. It will come on but I can't actually connect to my network.

Any help is appreciated!
[Verizon Samsung Galaxy S 4] shawnsingh:
Have you went to recovery and wipe cache.

Sent from my SCH-I545
[Verizon Samsung Galaxy S 4] lugnuttz:
Worked like a charm! Easy to follow instructions! Thank you everyone who worked on this!!
[Verizon Samsung Galaxy S 4] shawnsingh:
This thread should get alot more views.

Plus you should change title because you don't have to be on the nk1 kernal because you can do it on the latest one to.

Edit: whoops wrong thread ?.

Sent from my SCH-I545
[Verizon Samsung Galaxy S 4] str1de:
Anyway to install a custom recovery for this?
[Verizon Samsung Galaxy S 4] shawnsingh:
You root then you use safestrap and then it should flash a custom twrp recovery.
[Verizon Samsung Galaxy S 4] edjanx:
Back to NC5 to fix bluetooth

I can make as many calls as I'd like without a bluetooth, but after I use any of my three devices, on either the second or third call neither I nor the user can hear each other and only rebooting fixes this. I'm not suggesting the root method itself has caused this, but I suspect that it is NK1 itself. If anyone can make any suggestions I'd really appreciate it.

Hi, sorry that I just saw your question djmatt. At least I know I'm not crazy now, and nope, I found no fix for this and just can't tolerate it any longer. The new 'location' setting that replaced the GPS setting in NK1 is a total battery pig too, so I just logged on tonight to try and figure out how to go back to a rooted NC5 with my current data.

If anyone can assist, I'm thinking there is something I'm missing other than flashing the NC5 Stock Kernel then towel rooting. I did a data backup so I think I should be using the NC5 full wipe version, then restoring data correct? I think there are issues if the Baseband version and Build number are out of sync, but I may be off base. Thanks for any tips - it is appreciated.
[Verizon Samsung Galaxy S 4] str1de:
How and where do i find safestrap for verizon s4 - "I545VRUFNK1"

When i try and do normal recovery, it just goes to odin mode.
[Verizon Samsung Galaxy S 4] edjanx:
https://goo.im/devs/Hashcode/jflteatt/safestrap/

Select version 3.72
[Verizon Samsung Galaxy S 4] edjanx:
Bluetooth fix

OK, so I found this http://forums.androidcentral.com/sa...-sound-phone-calls-after-using-bluetooth.html

Apparently disabling 'Google search from any screen' in Google account settings will fix this issue on the Galaxy S4. I will try it today and report back.

UPDATE: This seems to have solved the issue.

EdJanx
[Verizon Samsung Galaxy S 4] charlieRobinson:
Hey, guys. Total noob here.

I am trying to root my Verizon S4 Galaxy so I can use it as a mobile hot spot. I just read about the KNOX protocol and it is scaring me a lil bit.

Do I have anything to worry about using the outlined instructions in this thread? Is it proven as a safe procedure?

Thank you!
[Verizon Samsung Galaxy S 4] ATGkompressor:
Nothing to worry about. The guys here aren't gonna post stuff like this if it will cause mass-bricking. If u follow the instructions to the T...u won't have any problems. Ur in good hands here at xda...:cool:
[Verizon Samsung Galaxy S 4] Ridwan Majid:
Cyanogenmod 12

Is it possible to get CM12 for the Verizon Galaxy S4 with this method? I've been looking around everywhere and there is no clear answer. I found threads saying you need Safestrap and others saying it's not possible. Please help I really want CM12 on my phone. Thanks.
[Verizon Samsung Galaxy S 4] npjohnson:
Nope. No CM12. If you want AOSP you have 3 options, KitPop VZW(I am the Dev for the ROM), Pure Nexus(ATT ROM that requires changing APN's), and GPE (ATT ROM that requires changing APN's).

Use this guide to get SAFESTRAP up and running before you flash.

No TWRP/CWM for this device, possibly ever.
[Verizon Samsung Galaxy S 4] funnyfish7484:
cant get stock recovery

So i followed all the steps to the T...got stuck in a boot loop and was going to wipe the cache and dalvik but my phone will not go into stock recovery.....flashes on like its trying to....then it just begins rebooting....any help?
[Verizon Samsung Galaxy S 4] shawnsingh:
I guess you can try Odin. All you need to do is power down the device and plug it in to the computer then hold power and volume down for Odin mode.
[Verizon Samsung Galaxy S 4] Alamiester:
just wanna say thanks for these instructions. worked flawlessly on my at&t galaxy s4 with the fnk1 patch. ive been looking for a week how to root a s4 with the newest update. now lets see if i can brick it. :silly: by trying to install some custom roms. :good: :laugh:
[Verizon Samsung Galaxy S 4] jhb04jhb04:
Just recently acquired a Verizon Samsung GS4 w/ NK1. I wasted no time rooting it! Thank you for this excellent write-up. I was able to root with no problems. I'm only bummed that Verizon's locked bootloader with NK1 severely limits our choices for roms though
[Verizon Samsung Galaxy S 4] Cynez:
First post and in need of assistance.

I continue to get a failure on this step. I've put my S4 in USB debug, odin mode, then run odin to put the NC5 kernel on and nothing. I've tried alternate USB slots and have the phone drivers installed. Any ideas? New to rooting an android and would really love to delete the bloatware to speed up my phone. Thanks.
[Verizon Samsung Galaxy S 4] Audemars02:
had major phone issues so had to reflash back to factory and this process worked GREAT!! Thanks so much!

Like others, I had the issue where my phone would constantly reboot after flashing the I545_NC5_Stock_Kernel, so it took me about 5 tries before I was able to actually load up and run TowelRoot before it reset again on me! But once I was able to get it to run, flash the I545_NK1_Stock_Kernel and reboot, it was working PERFECTLY!

thanks again!

Adam
[Verizon Samsung Galaxy S 4] jhb04jhb04:
Not sure if you already figured it out but did you go into Settings > Security and check the box for "unknown sources"? I noticed you didn't mentioned that so I wanted to be sure you did in fact, do this step prior to running Odin.
[Verizon Samsung Galaxy S 4] michaelcarnahan:
Worked

thanks for the article worked for me!
[Verizon Samsung Galaxy S 4] Ridwan Majid:
Unroot

Is there any method to unroot? Also I'm wondering if the thread will be updated to change to the 5.0 update that almost all Galaxy S4's are getting. Thanks.
[Verizon Samsung Galaxy S 4] npjohnson:
No 5.0 for VZW S4 this week. Later this week its on the schedule though.
[Verizon Samsung Galaxy S 4] dgutierrez04:
android 5.0

Looks like verizon started wit android 5.0 rolled out!!

http://www.phonearena.com/news/Veri...g-Galaxy-S4-to-Android-5.0.1-Lollipop_id68799
[Verizon Samsung Galaxy S 4] shawnsingh:
Actually it is out now some people are able to update today others not yet maybe in a few hours time.
[Verizon Samsung Galaxy S 4] npjohnson:
Its a staged roll out. A few users may get it soon, and most getting it later this week.
[Verizon Samsung Galaxy S 4] beckerbing:
un-root

is it worth unrooting to receive the update or better to stay rooted? how would i unroot? just flash a stock rom with odin or do i have to unroot via superSU before I flash.
[Verizon Samsung Galaxy S 4] muniz_ri:
If you guys want a chance of keeping root after updating do not take the OTA. Follow this thread for now: http://xdaforums.com/showpost.php?p=60440564&postcount=74
[Verizon Samsung Galaxy S 4] mcmi11ions:
I actually just got my upgrade to the S6 through the edge program and I need to return my S4 to verizon. Do I need to unroot before I send this back or will they not care since they are going to refurb the device anyway (at least that is my guess). If I do need to unroot it, how do I? I"m on NG6 build.
[Verizon Samsung Galaxy S 4] shawnsingh:
Just download the ng6 firmware and flash via Odin.
[Verizon Samsung Galaxy S 4] djmatt8787:
WHOOT WHOOT!!!! thanks Edjanx... i disabled that, rebooted, and works like i charm, at least over the last 12 hours..... funny thing is, i don't ever remember turning those setting on....
[Verizon Samsung Galaxy S 4] dotdashdashdash:
Problem with ODIN

So I am trying to root using OP's method. When I try to flash a new rom (going from NK1 to NC5), it seems like ODIN only writes the boot partition. ODIN says 'PASS!' even though it only was downloading for 4 seconds and clearly didn't change much. The ODIN console log is posted below. Has anyone had this problem or know how to fix it?

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> I545_NK1_Stock_Kernel.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/005> Added!!

<ID:0/005> Odin v.3 engine (ID:5)..

<ID:0/005> File analysis..

<ID:0/005> SetupConnection..

<ID:0/005> Initialzation..

<ID:0/005> Get PIT for mapping..

<ID:0/005> Firmware update start..

<ID:0/005> SingleDownload.

<ID:0/005> boot.img

<ID:0/005> NAND Write Start!!

<ID:0/005> RQT_CLOSE !!

<ID:0/005> RES OK !!

<ID:0/005> Removed!!

<ID:0/005> Remain Port .... 0

<OSM> All threads completed. (succeed 1 / failed 0)
[Verizon Samsung Galaxy S 4] npjohnson:
Use a New PC and a New USB cable. Problem Solved.
[Verizon Samsung Galaxy S 4] KaosMaster:
This is what you need to do! Once that is done, you need to run TowelRoot, gain Root, then flash the NK1 boot back.

I recommend an FDR after this process. Then install SuperSU from the play store
[Verizon Samsung Galaxy S 4] rslu2:
Already rooted on NC5 can I shortcut to NK1?

So I did the NC5 to OC1 upgrade (original file) and had no issues, but I'm really not a fan of the Lollipop look so I downgraded back to NC5 because I like to run some Xposed modules and the look of Cobalt icons. If I'm rooted on NC5 can I just flash the last file in step 4 and have NK1? Or is there something in the initial file that I need?

I
[Verizon Samsung Galaxy S 4] npjohnson:
Yes. Just flash the last step.
[Verizon Samsung Galaxy S 4] shawnsingh:
I heard of more ways on a possible root for the 5.0.1 update. I also heard someone downgraded.
[Verizon Samsung Galaxy S 4] npjohnson:
Dude, lay off telling people to upgrade to the OC1 bootloader! Also, being that vague helps no one!

1. KingRoot does not work on our model/firmware. That is the Chinese Root you were to referring to on another thread. There is currently no other known 5.0.x CVE or exploits that could root OC1.

2. The OC1 Bootloader increases security = lower chance of EVER seeing an unlock/workaround (Not saying that anyone has one, not to be interpreted wrong). Once you go to OC1, there is NO GOING BACK (See point 3.)

3. NO ONE DOWNGRADED FROM THE OC1 BOOTLOADER. When you upgrade to OC1, the Fuse Counter is increased on RPMB, which cannot be altered under any circumstances. This means that once on OC1, you can only flash OC1 over it. Nothing else. If someone was on Muniz_ri's stock rooted ROM (Which retains the NK4 Bootloader, which doesn't increase the fuse counter), then they could downgrade, but in almost no other circumstances. Telling people to downgrade will result in a bad set of results... Don't do it!

4. Your statement has nothing to do rooting NK1, and isn't pertinent to the thread.
[Verizon Samsung Galaxy S 4] Onelove819:
Nk4 to Root

Hello everyone! I'm in need of some help. I have rooted phones in the past but it's been over two years since. I have been rocking the S4 on stock firmware since I got it. I'm ready for a change now, free the phone. I have currently running kitkat 4.4.2 and my build is I545 (verizon) Nk4. I have read all over how screwed I am because of my current build but I refuse to believe that I am. I want this phone rooted and to go as far as unlocking it would be amazing. So my question is would this method work for me? Do I have to do anything different? If this does not work for me, can someone point me in the right direction please. Also a little information on safestrap. I don't quite understand that. I'm actually desperate right now. Thank you very much in advance!
[Verizon Samsung Galaxy S 4] Niotic:
So I am having serious issues with this method. I am continually getting an error in Odin when originally flashing to NC5:

<ID:0/004> Added!!

<ID:0/004> Odin v.3 engine (ID:4)..

<ID:0/004> File analysis..

<ID:0/004> SetupConnection..

<ID:0/004> Initialzation..

<ID:0/004> Get PIT for mapping..

<ID:0/004> Firmware update start..

<ID:0/004> SingleDownload.

<ID:0/004> boot.img

<ID:0/004> NAND Write Start!!

<ID:0/004> FAIL! (Auth)

<ID:0/004>

<ID:0/004> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

<ID:0/004> Removed!!

Have tried different cords, different usb ports, have tried using Odin 3.07 as opposed to 3.09. I'm not sure what to do and am on the edge of giving up on attempting to root my phone!

Any help, please!?
[Verizon Samsung Galaxy S 4] shawnsingh:
Sorry and I wasn't telling anyone to upgrade their phone.
[Verizon Samsung Galaxy S 4] ATGkompressor:
Sounds like you need to try a different computer.
[Verizon Samsung Galaxy S 4] Niotic:
I finally got this to work, I'm not exactly sure what the problem was but I ended up using the md5 files from this guide and it worked! I was following a guide posted on a different website and that may have been the problem.
[Verizon Samsung Galaxy S 4] ATGkompressor:
Did u get the nc5 modules i pm'd you?

I never follow directions from anywhere else. Most of them are plagiarized from xda anyways. Plus, the support here on xda is much more in depth.
[Verizon Samsung Galaxy S 4] Niotic:
I did get the files thank you! And so far almost everything is working fine, still trying to fix some bugs with a ROM I just flashed.

Also, I don't think I will be pulling files from anywhere else other than this website for that reason alone!
[Verizon Samsung Galaxy S 4] muniz_ri:
In light of the 5.0 update I am having this thread closed. Please find the lates keeproot thread here: http://xdaforums.com/galaxy-s4-verizon/general/how-to-update-to-i545oc1-5-0-1-keeproot-t3096558
[Verizon Samsung Galaxy S 4] Stryke_the_Orc:
Thread closed at OP's request.