[HOW-TO] The ULTIMATE All-In-One Guide - I337M & MDL - MF3 - MK2

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GuestX0019

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I want to know how someone would go about unrooting an AT&T GS4 on the MF3 build. I don't care about loss of data or anything like that. I just wanna know how someone would do it. If someone could link a good tutorial for me to follow that would be great as I cannot find one.

The OP talks about Odin. You can't use it--

If you go to jortex's thread linked in Op and to last page

http://xdaforums.com/showthread.php?p=44598687&highlight=unroot#post44598687

there appears to be no unroot available atm

I have not researched much on this as I am not in your situation. Would read that thread if you haven't--:)
 

cj1221

Member
Aug 7, 2013
11
4
sorry for the unconveniance, but is this thread showing me how to flash my galaxy s4 rooted with a custom recovery on mf3??
 

fukenbiker

Senior Member
Jan 28, 2011
388
64
Los Angeles
lango.us
wait DO NOT FLASH!!! read the xda fine print!

Negative. Post 1 (for at&t users) is for those still on MDB or MDL. if you are an at&t i337 user on MF3 then please refer to the section in post #2. Cheers

I see your section in post #2:

►►AT&T SGH-I337 USERS - MF3 OTA & ROOT SUPPORT◄◄
There has been a lot of questions and information flooding the forums lately concerning AT&T's latest [MF3] firmware. This small section is to address, in brief, the proper channels for each user in the 3 circumstances listed below. This section will be maintained and updated daily as new details and methods surface. Be sure to thank these guys as you visit their threads.

►I want the MF3 firmware:
If you have received notification of the MF3 update and wish to proceed while still retaining root and recovery, refer to this guide by @Aou.
►I want to block the MF3 OTA altogether:
Check out this method by @scrosler to block the OTA update and remain on stock/rooted MDB or MDL firmware.
►I have already received the OTA update / My device shipped with MF3:
In this scenario, visit @jortex's recent root guide here in order to achieve root access. Although there is now a root method for the MF3 firmware, please understand there is no custom recovery, no option to revert to older firmware and no current MF3 Odin-flashable firmware image. Proceed at your own risk.

that's IT?

An excited new owner of an SAMSUNG-SGH-I337 on AT&T wants to flash their S4 and try out some new Roms and they come here and see this. And they don't read real careful, and having had some past experience, gets root and then tries installing a custom recovery with Goo manager or what ever. Next thing you know, they're making a new "help me" thread in the Q & A help and troubleshooting section.

Where is the big bold text about how important it is to make sure to check your baseband version or something? The title of the OP is drawing them in like a pied piper and only a small font description of what's the matter.

Just trying to help with my recent point of view as a noob.
 
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xBeerdroiDx

Senior Member
Nov 10, 2012
2,351
1,744
Fort Worth
Thanks for your insight, @fukenbiker. Your points are valid but your approach sucks. Private messaging would have been a more constructive route. When I get home tonight from my 12 hour shift, I'll get started on some thread adjustments in order to eliminate as many future bricks as possible.

-The Pied Motherf*¢#ing Piper
 

fukenbiker

Senior Member
Jan 28, 2011
388
64
Los Angeles
lango.us
Thanks for your insight, @fukenbiker. Your points are valid but your approach sucks. Private messaging would have been a more constructive route. When I get home tonight from my 12 hour shift, I'll get started on some thread adjustments in order to eliminate as many future bricks as possible.

-The Pied Motherf*¢#ing Piper

I have yet to try a "private" message. Why bother? The NSA records every click with PRISM and what not. Beg pardon if I embarrassed your Motherf*¢#ing highness. Review TheSmokingAndroid counterpart to your earth shaking revelations in the General Section about getting root. I saw his warning was a bit better, but felt it lacking so I laid it out biker style in a new post in his rooting thread.
 
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xBeerdroiDx

Senior Member
Nov 10, 2012
2,351
1,744
Fort Worth
Beg pardon if I embarrassed your Motherf*¢#ing highness.

i do this for free in whatever spare time i get. i have nothing to be embarrassed about. trust me.

I saw his warning was a bit better

i dont care about his warning

so I laid it out biker style

hahaha!

i know you mean well, you just come across wrong and rude. create your own material if what you find is lacking. those of us that have taken the time to put these guides together have done so with the best intentions. if you dont like our work and cant be respectful about making it better, go f**k yourself...biker style. cheers
 

fukenbiker

Senior Member
Jan 28, 2011
388
64
Los Angeles
lango.us
i do this for free in whatever spare time i get. i have nothing to be embarrassed about. trust me.



i dont care about his warning



hahaha!

i know you mean well, you just come across wrong and rude. create your own material http://lango.us if what you find is lacking. those of us that have taken the time to put these guides together have done so with the best intentions. if you dont like our work and cant be respectful about making it better, go f**k yourself...biker style. cheers

I don't have time. I'm confronting paid media trolls in comment sections following news articles that define me aa a conspiracy theorist, gun rights wing nut, 9/11 truther, and a "birther". Important stuff, exposing tyranny, and explaining the fix. You're no hero here, like Snowden. You're nothing more than myself, just another honest citizen trying to help.

When I saw the multiple "help me! I can't get into recovery! I can only get to "download mode" posts in the Q & A Help and Troubleshooting section, I thought I better speak up and rant about fixing what's the matter, to save some frustration and grief.

I mean picture it... you've loved "serendipity" on your infuse for this long, waiting for your chance to cash in that two year eligible for upgrade, and clueless about the different basebands start flashing recoveries because YOU helped them figure out how to ROOT!

Your warning signs are upside down, is all I'm saying.
love ya bye
 
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fukenbiker

Senior Member
Jan 28, 2011
388
64
Los Angeles
lango.us
The title

--UPDATED OP--

added more reading material in step 1. thanks @ronnie498 for putting together this FAQ. a great addition to the community.

new users: read up. :good:

cheers

It's the title xBeerdroiDx. Take a look at it again, it still says there is a "step two". It's encouraging them to do what? Read step two! so they can flash a custom recovery is the motive for a reader. It's what they're looking for, a way to flash. And their eyes catch this snazzy title:

►►AT&T SGH-I337 USERS: DO NOT USE THIS GUIDE IF YOU ARE ON THE MF3 FIRMWARE.◄◄
Please refer to Post #2 for more information and further details.

And I already posted what I thought of step two, ya pied mf3 nm
How ya doin' there?
Ya I'm still trying to help.

Clumsiness is something I loathe and I got to laugh hard at myself yesterday (better than beating myself up).
I gotta peel this darn thing apart. I dropped it in the toilet and otter box didn't have the charge port door closed. And that's the part that just now quit working. No other symptom that I can see.

It actually charges while plugged in and powered off, but it vibrates in a cycle, displaying the big empty battery icon w/ no color just b&w, goes dark, then after a second it buzzes again, goes dark, displays a battery icon in a cycle and actually takes a charge. It also charges if I boot into recovery. But when I plug it into the computer, it's same as from wall charger, no response. I need to peel it apart and scrub the charging port free of any white powder deposits with a toothbrush under tap water, then stick it in a bag of rice overnight.

How was your day, fine I hope. Thanks for that op edit but as you read I see improvements can still be made. I trust you understand the pied piper story. I enjoyed your response. I tried a private message and picked you as my first recipient but I don't think it worked because it shows 0 sent. Clicked it twice, same result, I'm done. So here I am in public. I didn't want to be drunk in public, I wanted to be drunk in a bar. They threw me into public, arrest them." Ron White. One of my favorites right up there with fluffy and jef-fa-fa dun-ham dot com" peanut.

cheers!

PS the title would be great if you just eliminated the part about the second post.

►►AT&T SGH-I337 USERS: DO NOT USE THIS GUIDE IF YOU ARE ON THE MF3 FIRMWARE.◄◄

That would discourage anyone from trying to flash recovery that has the ever more common SGH-I337 with Baseband version ending in MF3. More and more of the new owners of these are going to come here looking to flash CWM or TWRP so they can get CyanogenMod, and they can't get there anywhere else, and if they take the road to achieve it they'll have a brick. My run over soggy beat up unit still has MDL, and I represent the dinosaurs. We are fast disappearing. More and more only thing you'll see is MF3 owners. And MF3 owners have ROOT available yes, but if you go further you BRICK.

Just trying to help.
That is all.
Lango out.
 
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jd1639

Inactive Recognized Contributor
Sep 21, 2012
16,833
5,404
Minnesota
It's the title xBeerdroiDx. Take a look at it again, it still says there is a "step two". It's encouraging them to do what? Read step two! so they can flash a custom recovery is the motive for a reader. It's what they're looking for, a way to flash. And their eyes catch this snazzy title:

►►AT&T SGH-I337 USERS: DO NOT USE THIS GUIDE IF YOU ARE ON THE MF3 FIRMWARE.◄◄
Please refer to Post #2 for more information and further details.

And I already posted what I thought of step two, ya pied mf3 nm
How ya doin' there?
Ya I'm still trying to help.

Clumsiness is something I loathe and I got to laugh hard at myself yesterday (better than beating myself up).
I gotta peel this darn thing apart. I dropped it in the toilet and otter box didn't have the charge port door closed. And that's the part that just now quit working. No other symptom that I can see.

It actually charges while plugged in and powered off, but it vibrates in a cycle, displaying the big empty battery icon w/ no color just b&w, goes dark, then after a second it buzzes again, goes dark, displays a battery icon in a cycle and actually takes a charge. It also charges if I boot into recovery. But when I plug it into the computer, it's same as from wall charger, no response. I need to peel it apart and scrub the charging port free of any white powder deposits with a toothbrush under tap water, then stick it in a bag of rice overnight.

How was your day, fine I hope. Thanks for that op edit but as you read I see improvements can still be made. I trust you understand the pied piper story. I enjoyed your response. I tried a private message and picked you as my first recipient but I don't think it worked because it shows 0 sent. Clicked it twice, same result, I'm done. So here I am in public. I didn't want to be drunk in public, I wanted to be drunk in a bar. They threw me into public, arrest them." Ron White. One of my favorites right up there with fluffy and jef-fa-fa dun-ham dot com" peanut.

cheers!

PS the title would be great if you just eliminated the part about the second post.

►►AT&T SGH-I337 USERS: DO NOT USE THIS GUIDE IF YOU ARE ON THE MF3 FIRMWARE.◄◄

That would discourage anyone from trying to flash recovery that has the ever more common SGH-I337 with Baseband version ending in MF3. More and more of the new owners of these are going to come here looking to flash CWM or TWRP so they can get CyanogenMod, and they can't get else, and if they take the road to achieve it they'll have a brick. My run over soggy beat up unit still has MDL, and I represent the dinosaurs. We are fast disappearing. More and more only thing you'll see is MF3 owners. And MF3 owners have ROOT available yes, but if you go further you BRICK.

Just trying to help.
That is all.
Lango out.

Wtf dude, we're not all dopes.
 
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navarr0

New member
Mar 30, 2011
3
0
Tultitlan
someone has fix it??

i have the same issue and i can not back to the original rom or updates rom with kies or ordin, if someone has fix it please post it i need back to the original rom to unlock the s4 i337, im living in mexico and some of my parents ship the phone to me and i can not use with another carrier, the phone is locked, can not acces to umts main menu to unlock, or if someone knows another method to unlock the sim, please
 
Jan 22, 2010
41
0
HEY GUYS I HAVE AN ATT S4 and i rooted it using moto chopper the problem is i cant install no zip files , no roms, or kernals , i keep getting an error everytime . i tried CWM snd TWRP and i still cant install no zip files .. ANY HELP
 

jrodsep

Senior Member
Feb 15, 2012
303
35
Been thinking of rooting using the one click root for the i337. But I have one question:

What's the correct way to install Super SU and delete superuser?


Sent from my SAMSUNG-SGH-I337 using Tapatalk 4
 

xxmiracle

New member
Aug 24, 2013
2
0
I just got my galaxy s4 and I followed the step by step guide..
I rooted the phone using the steps from here

I figured that my step 2 already included recovery so I skipped to step 4 but my cwm recovery didnt have the option to backup and restore?
I went back to step 3 and got rom manager to flash clockworkmod recovery but when it downloaded, it would say error..I couldnt get it to work and now I'm lost an confused..

any help would be great
 

xBeerdroiDx

Senior Member
Nov 10, 2012
2,351
1,744
Fort Worth
I just got my galaxy s4 and I followed the step by step guide..
I rooted the phone using the steps from here

I figured that my step 2 already included recovery so I skipped to step 4 but my cwm recovery didnt have the option to backup and restore?
I went back to step 3 and got rom manager to flash clockworkmod recovery but when it downloaded, it would say error..I couldnt get it to work and now I'm lost an confused..

any help would be great

When you booted into recovery after rooting, was it actually cwm or was it stock recovery? At what point did you get the cwm error? While installing cwm or when trying to use it? I would also check out the guide you used to root to roof anyone else had that problem and, if so, what they did to correct it. You may have to start over.
 

xxmiracle

New member
Aug 24, 2013
2
0
When you booted into recovery after rooting, was it actually cwm or was it stock recovery? At what point did you get the cwm error? While installing cwm or when trying to use it? I would also check out the guide you used to root to roof anyone else had that problem and, if so, what they did to correct it. You may have to start over.


the guide says it installs CWM Touch 6.0.3.2 but now that I think of it, I think it is just stock recovery?
it says "android system recovery <3e>" rather than "cwm-based recovery"

This means I have to flash cwm recovery right? since rom manager didnt work, I tried flashing using flashboot. Something about pathways, flashboot wasting recognizing my phone connecting to the pc, I didnt understand how to fix the 'path' so I ditched that idea..

Reading up guides as to how to remove everything and start over now..

oh, and thanks for replying!
 

xBeerdroiDx

Senior Member
Nov 10, 2012
2,351
1,744
Fort Worth
the guide says it installs CWM Touch 6.0.3.2 but now that I think of it, I think it is just stock recovery?
it says "android system recovery <3e>" rather than "cwm-based recovery"

This means I have to flash cwm recovery right? since rom manager didnt work, I tried flashing using flashboot. Something about pathways, flashboot wasting recognizing my phone connecting to the pc, I didnt understand how to fix the 'path' so I ditched that idea..

Reading up guides as to how to remove everything and start over now..

oh, and thanks for replying!

Yeah, 3e is stock recovery. At what point did rom manager fail to install cwm? Are you certain you have root at this point? Have you considered using goo manager to install twrp or perhaps running the one-click guide again?
 

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    ►►AT&T SGH-I337 USERS: DO NOT USE THIS FIRST GUIDE IF YOU ARE ON MF3 / MK2 FIRMWARE.◄◄
    Please instead refer to Post #2 for MF3 & MK2 rooting and Safestrap Recovery installation processes.



    This thread exists to keep all the necessary guides and material in one common place for the new users looking for the opportunity to do this right the first time. As always: Know what you're doing. Know what device model you have. Know your limits.

    If followed correctly, this 5-step guide can be a useful tool. These steps are listed in the order in which they should be completed. The intent is to seamlessly root, backup and flash, leaving as little room for error as possible. This process will erase and/or reset everything on your device. All steps are assuming you have backed up your contacts, texts, pictures, videos, etc. I do not take credit for any of this material or information. This is all the work of great people that I have simply brought together. Cheers!


    **WARNING!** All information and attached links are for the I337 & I337M ONLY! No one here is responsible for anything that may happen to your device. Proceed at your own risk.​

    >>>>>>Before you begin, make sure your S4 has USB Debugging Mode switched on<<<<<<​


    icon-checkmark-small.png
    Step 1: Read. Read. Succeed.


    Your journey down the Android path of rooting and modding can be smooth, fun and educational, based on your attempt at learning everything you can before you begin. This is entirely up to you, the user. There is some excellent material here on XDA that I highly recommend reading over as part of step 1. Don't skip this information!

    [GUIDE][INFO] The beginner's info thread (aka. the noob helper): This awesome guide by @Rastabolino is intended to be an all-in-one resource for the new user, covering all the basic material and XDA ground rules that everyone on this site should know.

    Frequently Asked Questions: Need I say more? Just about every question asked on this forum is covered in this great little post by @ronnie498. This a short list of frequently asked questions on this device forum and the answers often given as a response. It should serve as a starting point for gathering knowledge and finding solutions to many common problems.


    icon-checkmark-small.png
    Step 2: Rooting Your Device


    For those of you who want to get most out of your Galaxy S4, you will certainly want to root it. Rooting your I337 or I337M provides you as the user many, many benefits. That's why you're here right now reading this. You want it all.

    Please note that there is always the chance of error during these processes. Bad or faulty USB cables, USB ports, bad/old device drivers on the computer, an active virus scanner. These are a few of the issues that can cause your device to fail to connect or prohibit a successful root/flash. Use good and original OEM USB cables. Uninstall any drivers you may have installed for Samsung Mobile Devices and disable your virus scanner.

    AT&T/I337 Users: [ROOT[RECOVERY] Loki + TWRP + Motochopper CASUAL
    The thread linked here is the work of @AdamOutler, aptly named "CASUAL". Casual uses the exploit by @djrbliss and will guide you through the process. You will need to download and execute the CASUAL application then follow the onscreen instructions. After it is complete, you will have root access and Team Win's latest TWRP custom recovery installed.

    Canadian/I337M Users: [SGH-I337M] CF-Auto-Root [CANADIAN MODELS ONLY]
    The thread linked here is the work of @Chainfire and will successfully provide root access on to your Galaxy S4. CF-Root is the root for "rooting beginners" and those who want to keep as close to stock as possible. CF-Root is meant to be used in combination with stock Samsung firmwares, and be the quickest and easiest way for your first root.

    I337 & I337M Users: [Video Guide] How To Root Galaxy S4 I337 / I337m Easy & User Friendly
    Additionally, here is great video guide by @TheSmokingAndroid which demonstrates the utilization of @djrbliss' Motochopper tool. This thread provides another easy rooting option for both the AT&T & Canadian S4 variants and will have you on your way in no time.


    **If you want to have root access only you can stop here.**​


    icon-checkmark-small.png
    STEP 3: Installing A Custom Recovery

    For those of you that did not have the option of installing a custom recovery during your root & unlock process, follow this next step to get one installed.
    A recovery image is the system level software for your Android that lets you perform several maintenance and recovery tasks. The stock recovery image is quite limited in what it allows you to do and therefore, flashing a custom recovery image is required to gain full control of your device’s administration. A custom recovery image allows you to perform the following tasks:

    - Wipe your phone’s data (Factory reset) and cache
    - Make, restore and manage backups of your phone’s operating system and software
    - Mount, unmount and format your phone’s internal as well as external storage partitions
    - Install a custom ROM or application from a zip file to your phone
    - Wipe Dalvik cache and battery statistics
    - Make logs for error reporting and debugging


    The 2 most common custom recoveries are listed here. Take your pick and download from the Play Store or check out some of the other custom recovery options in the Android Development section.

    idybV.png
    **ClockworkMod (CWM)**
    1. Open Rom Manager and tap on Flash ClockworkMod Recovery option in the app.
    2. You’ll be asked to select your device, select your device name.
    3. As soon as you select the model, it should begin installing the recovery.
    4. When it has done installing the recovery, you will get a message for the same on your screen.
    *NOTE: I do not recommend Rom Manager as a tool to do anything but just install and update ClockworkMod Recovery Do not flash ROMs from Rom Manager.

    ScKKz.png
    **Team Win Recovery Project (TWRP)**
    1. Once the download is complete launch Goo Manager.
    2. On the top right of the screen there is the “options” menu.
    3. Tap on options.
    4. Then, click or choose the “Install OpenRecovery Script” option.
    5. Select “yes” on the prompts that will follow. Now, the app will download and install TWRP Recovery on your S4
    *NOTE: I do not recommend GooManager as a tool to do anything but just install and update TWRP Recovery Do not flash ROMs from Goo Manager.


    icon-checkmark-small.png
    Step 4: Making a Nandroid & EFS Backup


    Making a nandroid will allow you to try out new ROMs while still keeping a safe backup in the event you experience issues during or after a custom OS or kernel installation. Be sure your device is fully charged before proceeding to the backup and flashing procedures.

    If you are not already booted into recovery then do so now.

    1. Power off your device.
    2. Press and hold Volume Up + Home + Power buttons at the same time.
    3. Release the power button when the device vibrates and you see the blue script in the top left corner
    4. You are now in custom recovery.
    5. In CWM go to Backup and Restore and select Backup. In TWRP select Backup. Name and select the options you want. Swipe to backup.
    6. In TWRP, after the nandroid is finished, select "Name" and create a name for your EFS backup. Deselect everything except for EFS then swipe to backup.
    7. After backup is finished, select reboot system now or stay in recovery to continue with this guide.

    *NOTE: Be sure to save a copy of these backups to your computer and/or micro sd card. Having a recent backup saved to your computer and micro SD card can be useful if something happens to your phones internal memory.


    icon-checkmark-small.png
    Step 5A: Wiping Your Device


    When flashing any ROM, it is always important to follow the proper wipe procedures in order for everything to function properly. There are various levels of wiping based on what sort of transition you may be making. In this guide, I will list the procedures for a full wipe, presuming that you are coming from the stock firmware and changing your OS completely. This is all assuming you have made the appropriate backups. ALWAYS perform the appropriate wipe before flashing a new ROM or update!

    1. If you are not already in recovery, boot in now (Vol Up + Home + Power. Release the power button at vibrate and when you see the blue script in the top left corner).

    In CWM:
    2. Select Wipe data/factory reset
    3. Select Wipe Cache
    4. Select Advanced and Wipe Dalvik Cache
    5. Select Mounts and Storage and format /system
    6. If you are transitioning from 4.1 to 4.2 or 4.2 to 4.1, you must also format /data. You will lose all personal data so back it up first.

    In TWRP:
    2. Select Wipe
    3. Select Factory Reset and wipe
    4. Select System and wipe
    5. If you are transitioning from 4.1 to 4.2 or 4.2 to 4.1, you must also select Data and wipe. You will lose all personal data so back it up first.


    icon-checkmark-small.png
    Step 5B: Flashing a Custom ROM


    AT&T Users: First, check out this link by attn1. It will help provide some understanding of why we need a patch. Understand that with this device, any boot image or custom ROM you flash requires this patch. Pay attention to the thread you are browsing in to note if the developer has posted in the title or OP that the ROM or kernel has been Loki'd already. If the ROM or kernel you desire has been Loki'd, you may proceed with the download and flash in a custom recovery via the steps below. If the ROM or kernel has not been patched yet, download the loki-doki zip located in the link and flash it as directed. See the instructions below.

    Once you have selected a ROM for your specific S4 model:

    1. Download the ROM - If you are downloading a stock/TouchWiz-based ROM, Google Apps (gapps) will be included. If you are downloading an AOSP-based ROM, be sure to download the appropriate gapps as well.
    2. From your PC, place the ROM/gapps on your internal or external SD card. Remember where they are.
    3. Boot into custom recovery (Vol Up + Home + Power. Release the power button at vibrate and when you see the blue script in the top left corner).
    4. Perform the wipe listed above if you have not already.
    5. From the main recovery screen:
    >>CWM - Choose the "install .zip from SD Card" or "install .zip from external SD card" option (depending on where you placed the files) then navigate to the ROM file, select it and confirm.
    >>TWRP - Choose Install and locate the desired ROM on your internal or external SD.

    ►►► AT&T users, if you are flashing a custom ROM or kernel that has not been patched, repeat step 5 and flash the loki-doki.zip now ◄◄◄

    6. If you need to flash gapps, repeat step 5 and select the gapps package.
    7. Reboot system. It will take several minutes to load so be patient and don't worry. Once the phone is booted, let it sit for 5 minutes, reboot and enjoy!
    104
    ►►AT&T-MF3 / MK2 Root & Recovery Mini Guide◄◄​

    Concerning AT&T's latest build: If you are an AT&T user on MF3 or MK2, you CANNOT use the steps in the guide above to root, backup or flash anything to your device. Trying to install a custom recovery on your device will result in a brick.


    If you are currently running the MF3 or MK2 build, this portion of the guide is for you. Just follow the steps below.​

    icon-checkmark-small.png
    Step 1: Read & Ask Questions.
    Official AT&T S4 Safestrap Discussion
    @graydiggy has a great discussion thread for the AT&T S4 Safestrap method. Check it out. Lots of good information. If you have any questions about MF3 in general, @TheAxman has assembled a Q&A section here.

    icon-checkmark-small.png
    Step 2: Root

    [ROOT] Saferoot: Root for VRUEMJ7, MK2, and Android 4.3
    Checkout @k1mu's thread here which covers and supplies everything you need to get your S4 variant rooted. For you lucky (or not so much) folks on MK2, head this direction for further details.
    Root Method for AT&T Samsung Galaxy S 4 (OTA MF3)
    Visit @jortex's root guide in order to achieve root access on your MF3'd device.

    icon-checkmark-small.png
    Step 3: Recovery

    [RECOVERY LOCKED] Safestrap Recovery v3.65 & v3.71 - MF3/MK2
    Check out the amazing @Hashcode's thread for everything you need to continue with your device modifications. Root is required. Start at the top of the thread, read everything and enjoy filling those virtual slots.


    [Q] But what if i just want to block the update altogether and retain root/recovery on my current MDB/MDL build?
    [A] Refer to this guide by @Aou.

    [Q] How do I restore my S4 to factory stock with Odin?
    [A] Thanks to @Shockndrop, we now have a way for those on MF3 to get back to stock, fix a softbrick, etc with Odin. The newest thread on the topic can be found here. Go check it out and make a donation if this has helped you.

    Be sure to thank these guys as you visit their threads.

    As always, if you don't have the knowledge to fix any potential issues you may run into, don't root it. Read up and proceed at your own risk.
    4
    Today I've got my new s4 from att =) Now it's on MDL. I just said that I don't like the color and I want to exchange it. Purposely I didn't take my SIM card with me and said that I will finish with my phone at home.At the time of first start I didn't activate WiFi to stop firmware update. Then after root, I installed Titanium Backup and frozen 3 app below:
    1. AT&T Software update Vxx_x_xxxx_x_x
    2. FWUpgrade x.x.x
    3. LocalFOTA vx_xxxx_x_x
    It was easy and no more MF3
    4
    I'm keeping my ear to the ground. :good:
    4
    thanks for the feedback everyone. that's what makes a great thread. updated OP. guides for both I337 & I337M.

    smile and drink a craft beer. :cowboy: