Database Users

[Q] Failed root with odin, cannot detect with Kies 3

I recently got a Galaxy Note 3 from Verizon. I wanted to root the device, it was really easy with my old original galaxy so I looked at a few guides which were all using "Root de la Vega" and finally tonight in an attempt to root my device I used the guide at:
phonearena.com/news/How-to-Root-the-Verizon-Samsung-Galaxy-Note-3_id48247
I put the phone into download mode and connected it to Odin with the included Samsung USB 3.0 cable. I selected the root de la vega firmware using the AP button and hit Start to begin flashing. Almost immediately after the write starts it fails and on the phone it says:
"Secure check failed: cache"
Click to expand...
Click to collapse
In the guide it mentions there may be problems using the USB 3.0 cable so I tried it with a USB 2.0 cable with the same results. I tried rebooting the phone to see if it had wiped it. Indeed, it had been wiped and is now going to the screen which says there was a problem updating the firmware and says to use the Software Recovery Assistant to restore the firmware.
I am not sure why this has happened. I feel like I followed the instructions to the letter. After looking at some different guides I am noticing that many have you put the phone into USB debugging mode which the guide I was following doesn't mention. Is this why it has failed. Is this strictly required?
I would like to get this device rooted, but now my number one priority is getting it back into a state where it will be more useful than the paperweight on my desk. I tried downloading Kies 3 which I read can restore the stock firmware on the phone. I was extremely annoyed when I realized that Kies 3 would not recognize my phone at all. It says that the device is not supported by Kies 3 and gives me a link to check support (which just brings me to the Kies download page which clearly states that my phone (Note 3) is supported. I even tried to download the original Kies software which will not even recognize the device enough to tell me it's not supported.
Can anyone point me to a way to restore my phone to factory settings? Can I download the stock firmware and flash it with Odin, will this work if I couldn't get the custom firmware to flash in Odin (possibly because of not setting USB debugging?).
EDIT: Note that, following the guide, I did not check which build number my phone is before running Odin, now I have no idea which it is and what stock firmware to download. Is there anyway to figure out which build my phone was on or which stock firmware I need to download?
EDIT: So it looks like my problem is similar to this problem posted on XDA. I followed the link in that thread to this guide to restore the stock firmware. However, it has three different downloads for different builds, I am not sure which I should download or if there is a way to figure it out. Will any of them work? Can I try them one at a time safely until one of them works. I don't want to mess things up any worse than I already have.. I downloaded the MI9 firmware from that page, but this is just a guess... Anyone have any idea?
Any help will be very much appreciated.

CoryG89 said:
I recently got a Galaxy Note 3 from Verizon. I wanted to root the device, .........
......Any help will be very much appreciated.
Click to expand...
Click to collapse
Click the link in my sig and d/l the MJE tar, flash it in ODIN (instructions also provided)
Then, you can follow the root, safestrap and cust rom links...
All links, step by steps, everything you need to get you up and running are in the link in my sig
Start fresh with the OEM MJE tar, then go from there... Hit me up in that thread for additional help!

az_biker said:
Click the link in my sig and d/l the MJE tar, flash it in ODIN (instructions also provided)
Then, you can follow the root, safestrap and cust rom links...
Click to expand...
Click to collapse
Thank you very much! I wish I would have found your guide first. I flashed the MJE firmware, was able to successfully root using Kingo (after a few attempts). I also installed safestrap and the open source superuser app.
Now I just have to figure out what roms I want, looks like I can take advantage of the multiple rom slots and try a few before installing one into the stock rom slot.
Again, many thanks!

Odin to MJE Question
Hi, my phone is fully stock with MJE on it. To root my phone, would I need to install the MJE tar file and also use King or just the MJE file? So far, I have had no luck using Kingo to root my phone.
Thanks

tss01 said:
Hi, my phone is fully stock with MJE on it. To root my phone, would I need to install the MJE tar file and also use King or just the MJE file? So far, I have had no luck using Kingo to root my phone.
Thanks
Click to expand...
Click to collapse
Just Kingo should do it for you. I did this last week stock on mje. Make sure you have usb debugging enabled or it won't work. I also used Kingo 1.1.6 instead of 1.1.7 and I had no problem at all woth knox or anything. It worked like a charm.

Misterxtc said:
Just Kingo should do it for you. I did this last week stock on mje. Make sure you have usb debugging enabled or it won't work. I also used Kingo 1.1.6 instead of 1.1.7 and I had no problem at all woth knox or anything. It worked like a charm.
Click to expand...
Click to collapse
Why 1.1.6 instead of .7?
Notorious 3
---------- Post added at 08:38 AM ---------- Previous post was at 08:36 AM ----------
tss01 said:
Hi, my phone is fully stock with MJE on it. To root my phone, would I need to install the MJE tar file and also use King or just the MJE file? So far, I have had no luck using Kingo to root my phone.
Thanks
Click to expand...
Click to collapse
Follow the 'Root with Kingo' instructions in link (see my sig)... no worries, you'll be rooted snd running in no time.
Notorious 3

az_biker said:
Why 1.1.6 instead of .7?
Notorious 3
Click to expand...
Click to collapse
I used 1.1.6 because I wasn't sure if their new version was going to automatically add a custom recovery and trip Knox. I was reading the comments on their facebook page (Kingoapp) and saw one that said it will trip knox but a few days later read that it was a option to install a custom recovery. Instead of taking a chance I downloaded the older one and used that. Also in the 1.1.7 comments there is a link to official Samsung drivers if you want to be sure to have the latest ones. There are links for all their versions on the fb page if anyone wants to try that route.

Rooting w/Kingo
Finally was able to get root! What I did was uninstall the Samsung drivers and re-install them. Thank goodness it's finished. I also just installed HyperDrive and Beans. It's kinda nice having a choice each time I turn the phone on.
Thanks for your help.

tss01 said:
Finally was able to get root! What I did was uninstall the Samsung drivers and re-install them. Thank goodness it's finished. I also just installed HyperDrive and Beans. It's kinda nice having a choice each time I turn the phone on.
Thanks for your help.
Click to expand...
Click to collapse
Way to go! Glad you worked through it...
Notorious 3

[Q] Need to return phone to "stock"

First, I'm going to apologize. I know very well that this topic has been covered, even at length (to a degree), but there is so much conflicting information, and so many inconsistencies, that I've decided I need a be-all end-all solution for this.
I purchased my l337 from AT&T back in June. That makes it one of the first shipments of the phone, and would explain why my battery life is absolute (insert 4-letter word here). Apart from that, my screen doesn't function properly in terms of touch-response. Lastly, my NFC crapped-out a few months ago, and hasn't worked regardless of the ROM I run. I am currently running under the following software/stats:
-AOSP 4.4.2 (SlimKat)
-Ktoonz kernel
-PhilZ Touch Recovery
When I purchased the phone, it had whatever stock firmware/radio was current, I believe it was MDL or around there. I did not update the radio or firmware after I got it. What I did do, is root it using the Motochopper method. I then proceeded to install CWM as my custom recovery, and AOSP-based ROMs were ran from then on.
About a month ago, I updated the radio to MK2 (I am not, and have never been on MF3, therefore SafeStrap was never in my equation). I have scoured the Q&A, and General forums for a straight-through explanation on how to return my phone to stock. Unrooted, zero flash-count, stock ROM. I could care less what firmware/radio I flash when it comes to returning it to stock, so long as it functions.
I need this puzzled solved, so that I can return the device for replacement at a Service Center. My brother-in-law works for AT&T, and stressed that they would likely decline it in its current state.
If someone has specific experience with this process, please impart your knowledge. I'll be eternally grateful. If it's just as simple as flashing a stock ROM via Odin (which is what I have read, though the details are muddy at best as to which to flash, and what will or will not brick the phone), I'm familiar with it enough to do that, I just need to be pointed in the direction of a viable file to flash. Just need to get this unit back to a seemingly untouched-by-appearance state.
:good:

If you're on mdl firmware go to sammobile.com for the firmware. You'll download a zip. Use 7-zip to extract the .tar.md5 file, use that in Odin

jd1639 said:
If you're on mdl firmware go to sammobile.com for the firmware. You'll download a zip. Use 7-zip to extract the .tar.md5 file, use that in Odin
Click to expand...
Click to collapse
I'm currently on MK2. I don't know if that matters or has any bearing on things. Between the tar and md5 files, do both need to be flashed? If so, in which order? Lastly, will this reset the flash-counter, and "unroot" the phone in the process?

disturbd1 said:
I'm currently on MK2. I don't know if that matters or has any bearing on things. Between the tar and md5 files, do both need to be flashed? If so, in which order? Lastly, will this reset the flash-counter, and "unroot" the phone in the process?
Click to expand...
Click to collapse
Are you sure you're on mk2? You mentioned the mk2 radio but that's different than your firmware being mk2. Also, there is only one Odin file. It has the extension of .tar.md5
If you really are on mk2 then this method will not work for you.

jd1639 said:
Are you sure you're on mk2? You mentioned the mk2 radio but that's different than your firmware being mk2. Also, there is only one Odin file. It has the extension of .tar.md5
If you really are on mk2 then this method will not work for you.
Click to expand...
Click to collapse
I guess I'm not sure how to answer that. I didn't change the radio or the firmware on the phone prior to rooting it and installing AOSP, but I did change the radio to MK2 after the fact. I know the baseband is currently MK2, but if I understand correctly the firmware is directly affected by the ROM, yes? If so, then it's whatever the 4.4.2 SlimKat ROM is based-on. If not, then the firmware is probably either MDL or earlier.

Screen of my stats:

disturbd1 said:
Screen of my stats:
Click to expand...
Click to collapse
If you're still flashing through cwm then your on mdl firmware, bootloader.

jd1639 said:
If you're still flashing through cwm then your on mdl firmware, bootloader.
Click to expand...
Click to collapse
OK, so then if I understand you correctly, I should be able to flash the above file you mentioned, and I'm good to go there.
I'm still wondering about the flash-counter and whether flashing the .tar.md5 file will unroot the device as well?

disturbd1 said:
OK, so then if I understand you correctly, I should be able to flash the above file you mentioned, and I'm good to go there.
I'm still wondering about the flash-counter and whether flashing the .tar.md5 file will unroot the device as well?
Click to expand...
Click to collapse
You should be good on the file above. I'm not sure on the flash counter. Check out triangle away and see if it works on the i337,mdl firmware. You'll want to use triangle away while you're still rooted. Flashing with odin will remove root.

jd1639 said:
You should be good on the file above. I'm not sure on the flash counter. Check out triangle away and see if it works on the i337,mdl firmware. You'll want to use triangle away while you're still rooted. Flashing with odin will remove root.
Click to expand...
Click to collapse
When I go to sammobile, under the firmware section, I don't see any US phone models listed.

disturbd1 said:
When I go to sammobile, under the firmware section, I don't see any US phone models listed.
Click to expand...
Click to collapse
Yes there is. I'm looking at it right now. You have an SGH-I337. Did you register, it's free and use the table that walks you thru, type, os, model, country

soft brick, which tar to use?

ok, so my phone hangs at the SAMSUNG, GALAXY S4 screen no matter what I wipe or flash. I want to odin it back to stock and start over, but all I see are the mk2 and nb1 .tar files. I have one of the very first gs4's, had it first day and it rooted without safestrap. Where are those .tar files to odin?

Go to sammobile.com and search. Get the MDL firmware, and be ready to root and freeze the update or put a ROM on it before it updates and you can't exploit it anymore.
Sent from my SGH-I337 running Blackbox 3.0

DeadlySin9 said:
Go to sammobile.com and search. Get the MDL firmware, and be ready to root and freeze the update or put a ROM on it before it updates and you can't exploit it anymore.
Sent from my SGH-I337 running Blackbox 3.0
Click to expand...
Click to collapse
When I am trying to odin the .tar file, I get FAIL and on the phone it says secure check fail sb12. Any help on this error?
Lost as to what to do next, Need phone quick I am out of town with no communication home. Thank to all.

aawshads said:
When I am trying to odin the .tar file, I get FAIL and on the phone it says secure check fail sb12. Any help on this error?
Lost as to what to do next, Need phone quick I am out of town with no communication home. Thank to all.
Click to expand...
Click to collapse
Make sure the download is full. Try different USB ports and different cables. Make sure you have the latest Samsung drivers also. If it's giving you an issue still then you might have partially upgraded and might need to flash a newer firmware, but I would hold off on that as long as possible in order to keep your freedom.

I337 AT&T S4 - Return to Stock (No WiFi)

I recently bit off more than I could chew with my S4 (I337). I had 4.4.2 KitKat on it and wanted to root it to add teathering. I decided thought there was no root for 4.4.2 so I thought I would try downgrading to 4.3 then root. This seemed best because I didn't like the way the SD card is handled in 4.4.2 and some of my apps (like ftp server) have stopped working.
When I got the phone back up from flashing with Odin it says it has version 4.3. My WiFi will not turn on. If I slide the switch to on it slides right back to off and the phone tells me that an operation was block (can't remember the full verbage. I have installed and attempted to install many things on my phone. I have used recovery mode / Odin3 and Kies (Kies doesn't allow much).
At this point I just would like to get my phone back to 4.4.2 with the WiFi working. Then I can restore my backup and be back to square one with a lesson learned.
I have an I337 that currently thinks it has version 4.3 on it. The baseband version is I337UCUFNC1 currently. The build number is JSS15J.I337UCUEMK2.
If anyone can help I would greatly appreciate it. I have read and tried many things over a two day period and finally decided to ask for help.

Had this issue before on my Bell Canada S4, but don't recall exact way to fix it.
Think the solution was to find an older (might be newer) stock. I think I used a different version like the Telus Canada version as well and it ended up working. Then you update through kies after.

jbrudda said:
I recently bit off more than I could chew with my S4 (I337). I had 4.4.2 KitKat on it and wanted to root it to add teathering. I decided thought there was no root for 4.4.2 so I thought I would try downgrading to 4.3 then root. This seemed best because I didn't like the way the SD card is handled in 4.4.2 and some of my apps (like ftp server) have stopped working.
When I got the phone back up from flashing with Odin it says it has version 4.3. My WiFi will not turn on. If I slide the switch to on it slides right back to off and the phone tells me that an operation was block (can't remember the full verbage. I have installed and attempted to install many things on my phone. I have used recovery mode / Odin3 and Kies (Kies doesn't allow much).
At this point I just would like to get my phone back to 4.4.2 with the WiFi working. Then I can restore my backup and be back to square one with a lesson learned.
I have an I337 that currently thinks it has version 4.3 on it. The baseband version is I337UCUFNC1 currently. The build number is JSS15J.I337UCUEMK2.
If anyone can help I would greatly appreciate it. I have read and tried many things over a two day period and finally decided to ask for help.
Click to expand...
Click to collapse
Root, install safestrap then flash this ROM and you will be good to go: http://forum.xda-developers.com/showpost.php?p=52167774&postcount=3

Thanks
muniz_ri said:
Root, install safestrap then flash this ROM and you will be good to go: http://forum.xda-developers.com/showpost.php?p=52167774&postcount=3
Click to expand...
Click to collapse
Quite a few steps in those threads but I got it working again. I really appreciate all the help/advice given. Now to decide if I want to remove the safestrap screen on boot. Again Thanks.

Same problem,need help plz
Hi guys,
I have the same problem as jbrudda.i wiped everything using Odin3_v3.09 and AP_I337UCUEMK2_1921628_REV06_user_low_ship_MULTI_CERT.tar . and now my wifi is not working. when i try to turn it on a security message pop up (the device has detected an application attempting to perform actions that are not permitted these actions have been blocked)and ask me to reboot, then it does a factory reset on its own. but the problem is still there no wifi. my baseband is diffrent than jbrudda's. mine is I337UCUAMDB. can someone plz help. thank you

karim8888 said:
Hi guys,
I have the same problem as jbrudda.i wiped everything using Odin3_v3.09 and AP_I337UCUEMK2_1921628_REV06_user_low_ship_MULTI_CERT.tar . and now my wifi is not working. when i try to turn it on a security message pop up (the device has detected an application attempting to perform actions that are not permitted these actions have been blocked)and ask me to reboot, then it does a factory reset on its own. but the problem is still there no wifi. my baseband is diffrent than jbrudda's. mine is I337UCUAMDB. can someone plz help. thank you
Click to expand...
Click to collapse
Wifi does not work because of the modem/kernel mismatch, i.e. MDB modem and MK2 kernel. Not sure what your goal was when you began flashing your phone but since you fortunately did not flash teh MK2 bootloader you are still able to locate the MDB full odin tar and flash back to stock which will resolve your issue.

muniz_ri said:
Wifi does not work because of the modem/kernel mismatch, i.e. MDB modem and MK2 kernel. Not sure what your goal was when you began flashing your phone but since you fortunately did not flash teh MK2 bootloader you are still able to locate the MDB full odin tar and flash back to stock which will resolve your issue.
Click to expand...
Click to collapse
I did Root it with saferoot and safestarp.the wifi didnt work so i had to find a script here on xda and i run it throughout universal init.d . i didnt like the way my phone was running . so i decided to unroot it . so you think im using the wrong TAR file ???

karim8888 said:
I did Root it with saferoot and safestarp.the wifi didnt work so i had to find a script here on xda and i run it throughout universal init.d . i didnt like the way my phone was running . so i decided to unroot it . so you think im using the wrong TAR file ???
Click to expand...
Click to collapse
It depends on what you are trying to accomplish. Are you trying to upgrade to MK2 or higher while maintaining your unlocked MDB bootloader?

muniz_ri said:
It depends on what you are trying to accomplish. Are you trying to upgrade to MK2 or higher while maintaining your unlocked MDB bootloader?
Click to expand...
Click to collapse
I'm just trying to take it back to the why it was. and upgrade to kitkat. i have now build number JSS15J.I337UCUEMK2 baseband : I337UCUAMDB
what do you think i should do?? I appreciate your help.

karim8888 said:
I'm just trying to take it back to the why it was. and upgrade to kitkat. i have now build number JSS15J.I337UCUEMK2 baseband : I337UCUAMDB
what do you think i should do?? I appreciate your help.
Click to expand...
Click to collapse
If you don't care about losing your MDB unlocked bootloader you can get to the latest kitkat firmware by flashing the NB1 full odin tar from here:
http://forum.xda-developers.com/showthread.php?t=2674223, then once flashing is complete go to settings/more/about phone/software update then take the ota update to NC1 which is the latest kitkat version for our phone.
But what I would do is keep your unlocked MDB bootloader and since you already flashed the MK2 AP file you can get your phone running well again by flashing the MK2 modem: https://mega.co.nz/#!pwESna5I!YK7EKG37xXIG1ReB-Z-mfSMoXNkXQ9t2EdMK9ofgJKg
From there, there are still a number of options available to get to kitkat which I won't get into.

muniz_ri said:
If you don't care about losing your MDB unlocked bootloader you can get to the latest kitkat firmware by flashing the NB1 full odin tar from here:
http://forum.xda-developers.com/showthread.php?t=2674223, then once flashing is complete go to settings/more/about phone/software update then take the ota update to NC1 which is the latest kitkat version for our phone.
But what I would do is keep your unlocked MDB bootloader and since you already flashed the MK2 AP file you can get your phone running well again by flashing the MK2 modem: https://mega.co.nz/#!pwESna5I!YK7EKG37xXIG1ReB-Z-mfSMoXNkXQ9t2EdMK9ofgJKg
From there, there are still a number of options available to get to kitkat which I won't get into.
Click to expand...
Click to collapse
I will try this steps and let you know.thanks a lot.

It worked "muniz_ri". Thanks a lot for your help, I really appreciate it. :laugh::good:

karim8888 said:
It worked "muniz_ri". Thanks a lot for your help, I really appreciate it. :laugh::good:
Click to expand...
Click to collapse
Hey guys.
I lost al sounds on my phone now.Wifi is running , I thought the fix worked but the sound is out now. any suggestions???
Thank you.

jbrudda said:
I recently bit off more than I could chew with my S4 (I337). I had 4.4.2 KitKat on it and wanted to root it to add teathering. I decided thought there was no root for 4.4.2 so I thought I would try downgrading to 4.3 then root. This seemed best because I didn't like the way the SD card is handled in 4.4.2 and some of my apps (like ftp server) have stopped working.
When I got the phone back up from flashing with Odin it says it has version 4.3. My WiFi will not turn on. If I slide the switch to on it slides right back to off and the phone tells me that an operation was block (can't remember the full verbage. I have installed and attempted to install many things on my phone. I have used recovery mode / Odin3 and Kies (Kies doesn't allow much).
At this point I just would like to get my phone back to 4.4.2 with the WiFi working. Then I can restore my backup and be back to square one with a lesson learned.
I have an I337 that currently thinks it has version 4.3 on it. The baseband version is I337UCUFNC1 currently. The build number is JSS15J.I337UCUEMK2.
If anyone can help I would greatly appreciate it. I have read and tried many things over a two day period and finally decided to ask for help.
Click to expand...
Click to collapse
I told you not to drink and root.

jbrudda said:
Quite a few steps in those threads but I got it working again. I really appreciate all the help/advice given. Now to decide if I want to remove the safestrap screen on boot. Again Thanks.
Click to expand...
Click to collapse
excited to give this a try. rooted with the downgrade method a couple months ago but left with a non-wifi device. my only issue is that the thread says it's for I337UCUFNC1 and our devices are on jss15j.i337ucuemk2. will this fix still work? I've heard on other threads on the subject that the modem kernel doesn't match up with the flashed rom or build number or something.
bux

karim8888 said:
Hi guys,
I have the same problem as jbrudda.i wiped everything using Odin3_v3.09 and AP_I337UCUEMK2_1921628_REV06_user_low_ship_MULTI_CERT.tar . and now my wifi is not working. when i try to turn it on a security message pop up (the device has detected an application attempting to perform actions that are not permitted these actions have been blocked)and ask me to reboot, then it does a factory reset on its own. but the problem is still there no wifi. my baseband is diffrent than jbrudda's. mine is I337UCUAMDB. can someone plz help. thank you
Click to expand...
Click to collapse
Do you already fix it??? cause i have the same problem

Same question, different thread!
Not even an hour ago did I answer the same question in a different thread: How do I get WiFi working on my S4?
Well here you go.
My original answer: http://forum.xda-developers.com/gal...-4-4-2-nb1-t2850878/post54978150#post54978150
The problem is, in order to get WiFi working, you need to install the NB1 modules, but to do that, you need to install Safestrap. However, you can not install Safestrap because the app keeps closing on you. There is a simple fix to this, which I will explain later. For now, just read this WHOLE post BEFORE you do anything, and keep in mind that I am NOT held liable if you mess up your phone. Use this at your own risk.
1.) Root your phone
If you're already rooted with something like SuperSU or Superuser, skip this. If not, read ahead. Download and install the Towelroot APK file attached to this post, open it, and click 'make it ra1n'. If your phone didn't reboot, now you have root (they need to trademark that). Now, down below, I also included the APK for SuperSU. Download and install it. Now open it. When you open it, let it install the 'Normal' way, not via the 'TWRP/CWM' way. Also, when it asks you to disable KNOX, say yes, wait a couple of minutes (it will still be loading) and reboot your phone. Open up SuperSU again, click 'Yes' to disable KNOX again, and now you have a good base to start from.
2.) Install Safestrap AFTER fixing the error
The error your are getting is easily fixed. Go to the Play Store and install 'SELinux Mode Changer'. Open it, grant it root access, and change the mode to 'Permissive'. Now, open up Safestrap again (you mentioned you already installed it), and it shouldn't force close. Click 'Install', and if the 'Reboot to Recovery' option below is not grayed out after that then it worked.
3.) Download and install the NB1 modules
On your phone, download the included NB1 modules ZIP file I attached for you, and once that is done you need to reboot. After the Galaxy S4 logo, you'll see a screen that says 'SAFESTRAP: DISABLED' and there will be a little robot. TIP: To enter Safestrap, press the menu button (physical, hardware key) under 'Recovery' at that screen. To continue to Android, press the back key (again, physical) under the 'System' tab. For now, press the menu button under 'Recovery'. Now, click 'Install' which should be in red, click 'Add zips', and navigate to your Downloads folder. Now click on the NB1 modules ZIP you just downloaded. Swipe to install, and reboot. This time, hit the back key under 'System'.
All done!
Now, Android should (and will) boot up, and you'll have working WiFi! If, for some odd reason, you don't have WiFi- do NOT panic! Just search around for the MF3 modules and flash those! All is good, all is good. A lot of this guide was taken from my post about my personal method of SIM unlocking the AT&T Galaxy S4 without the dialer codes or an AT&T SIM. It was just modified a little to work for you.
Remember, hit thanks!
Click to expand...
Click to collapse
Those are my exact words. Also, the attached files (NB1 modules, SuperSU, Towelroot, etc.) can be found attached to my post in the link above. Have a good night, and best of luck! :good::good::good:

Had the Wifi Not Working - Fixed
muniz_ri said:
If you don't care about losing your MDB unlocked bootloader you can get to the latest kitkat firmware by flashing the NB1 full odin tar from here:
http://forum.xda-developers.com/showthread.php?t=2674223, then once flashing is complete go to settings/more/about phone/software update then take the ota update to NC1 which is the latest kitkat version for our phone.
But what I would do is keep your unlocked MDB bootloader and since you already flashed the MK2 AP file you can get your phone running well again by flashing the MK2 modem: https://mega.co.nz/#!pwESna5I!YK7EKG37xXIG1ReB-Z-mfSMoXNkXQ9t2EdMK9ofgJKg
From there, there are still a number of options available to get to kitkat which I won't get into.
Click to expand...
Click to collapse
I just flashed I337MK2StockModem.tar.md5 and now it works!! I'm on the MK2 and rooted with saferoot and safestrap recovery 3.72

iqcomputers said:
I just flashed I337MK2StockModem.tar.md5 and now it works!! I'm on the MK2 and rooted with saferoot and safestrap recovery 3.72
Click to expand...
Click to collapse
See the thread I started with a similar problem.
http://forum.xda-developers.com/galaxy-s4-att/help/rogers-samsung-s4-4-2-2-i337m-wifi-t3256535
Would I be able to use this fix?

"Old" I337 Galaxy S4 failed to root and now won't boot normally

I have two ATT I337's and wanted to root them both. The first and newest one worked fine but it has a busted screen and is locked. It was my test run and went very well except for the wifi problem that many others had trying to load towelroot from the net. Btw, it would be helpful to all going forward if someone would edit those instructions to download say towelroot first!!! I found a solution that I will post later.
Unfortunately my second and primary phone failed early in the process. After I loaded NC1_Stock, it would only boot to either the Recovery menu or the Odin menu. I have tried loading NC1 again, tried NJ4, tried safe mode (will not load), pulling the batt, factory wipe (ouch) and then tried emergency recovery in Kies. NOTHING is working. I did notice that the sticker in this I337 has NO serial number! So with Kies I used the serial from my broken one, on the second one. Unlike my other one which has a serial number on the sticker. So I am not sure if this is an older model, a refurb or what.
I must admit that I did NOT check the original firmware version when I started this process.
In any case I am looking for ANY options to get my i337 working again. Are there any other firmware versions to try? (link pls) Anyone? A phone that only goes into recovery or Odin mode is not much fun!

Honestly, I'm not sure what you did with the two phones with IMEI and stuff lol.
You have to back to NB1 firmware and work from there. Follow this guide until 3rd section on whichever phone you can Odin.
Make sure to completely close or remove Kies software. It's known to cause problems with Odin.

xymic said:
Honestly, I'm not sure what you did with the two phones with IMEI and stuff lol.
You have to back to NB1 firmware and work from there. Follow this guide until 3rd section on whichever phone you can Odin.
Make sure to completely close or remove Kies software. It's known to cause problems with Odin.
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I have gone back to NB1 multiple times(see orig post) and I get the same result. How do I disable Kies if I can only get to recovery or Odin menus? No matter what I do, I can only get to those two menus.

avgjoeuser said:
I have gone back to NB1 multiple times(see orig post) and I get the same result. How do I disable Kies if I can only get to recovery or Odin menus? No matter what I do, I can only get to those two menus.
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I don't see any mention of NB1 in your original post. If you use the guide I linked to, you don't need to do anything with NC1. You flash NB1 and go straight to OC3.
Just to be sure, you're using this Odin (3.09), right? Because that's the one you need. By disabling Kies, I mean just close the program or remove it from your computer. Both Kies and Odin are independent so you don't need Kies to use Odin and vice versa.

OC3
Apologies. I did not notice that you were saying NB1 instead of NC1. I was able to recover by loading NB1. Thanks! I am using odin 309.
I did try going to NJ4 after recovery, but I lose wifi. Where do I get OC3???

xymic said:
I don't see any mention of NB1 in your original post. If you use the guide I linked to, you don't need to do anything with NC1. You flash NB1 and go straight to OC3.
Just to be sure, you're using Odin (3.09), right? Because that's the one you need. By disabling Kies, I mean just close the program or remove it from your computer. Both Kies and Odin are independent so you don't need Kies to use Odin and vice versa.
Click to expand...
Click to collapse
Apologies. I did not notice that you were saying NB1 instead of NC1. I was able to recover by loading NB1. Thanks! I am using odin 309.
I did try going to NJ4 after recovery, but I lose wifi. Where do I get OC3???[/QUOTE]
Found it in the link from your first post. After reading through the process I am not sure I really want to go to OC3. Any issue with staying on NB1? Is there a more stable 4.x.x release that I should go to?

avgjoeuser said:
Found it in the link from your first post. After reading through the process I am not sure I really want to go to OC3. Any issue with staying on NB1? Is there a more stable 4.x.x release that I should go to?
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OC3 is newest Android version 5.0 (Lollipop). Some people say it eats more battery, but I don't feel any difference. To me, it feel more smoother, faster, and much more fluid. Even my father, who is not tech savvy at all, told me it was faster than before. It's as stable as any 4.x.x. I'd say the update is worth it.
The guide feels longer than it actually takes. You only need to follow sections 1-3 if you want OC3 update. Actually only Section 2 Section 3 since you already have NB1 working. Section 4 is optional. You'll be done within 10 minute max. :good:

xymic said:
OC3 is newest Android version 5.0 (Lollipop). Some people say it eats more battery, but I don't feel any difference. To me, it feel more smoother, faster, and much more fluid. Even my father, who is not tech savvy at all, told me it was faster than before. It's as stable as any 4.x.x. I'd say the update is worth it.
The guide feels longer than it actually takes. You only need to follow sections 1-3 if you want OC3 update. Actually only Section 2 since you already have NB1 working. Section 4 is optional. You'll be done within 10 minute max. :good:
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Click to collapse
You did mean section 3 right? "Upgrading to ROOTED STOCK OC3 (Lollipop) using "keep root" method". Maybe I will give it a try. The download took a while and I still need to go the whole G+ thing.

avgjoeuser said:
You did mean section 3 right? "Upgrading to ROOTED STOCK OC3 (Lollipop) using "keep root" method". Maybe I will give it a try. The download took a while and I still need to go the whole G+ thing.
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Click to collapse
Yep, I meant Section 3 Root your NB1 if it's not already.
You can avoid G+ thing and download the Flashfire APK directly from here.