[Completed] How to unlock/upgrade the bootloader on the AT&T Samsung Galaxy S4? - XDA Assist

Hi, I have an SIM-unlocked & rooted AT&T Samsung Galaxy S4:
Model number SGH-I337
Android version 4.2.2
Kernel version 3.4.0-812098
Build number JKQ39.I337UCUAMF3
I'd like to flash the JFLTE-GPE 5.0.1 ROM via TWRP, but have been told that I will need to upgrade the bootloader. How can I do this, what tool should I use? I've searched the forums a lot & was excited about the CASUAL tool, till I read that it "will not work on Build Number I337UCUAMF3". Can JOdin3 be used to unlock/upgrade this bootloader? Or is Safestrap my only option for flashing a new ROM?
Please guide me or point me in the right direction. Thanks for taking time to answer my questions.

XDA Visitor said:
Hi, I have an SIM-unlocked & rooted AT&T Samsung Galaxy S4:
Model number SGH-I337
Android version 4.2.2
Kernel version 3.4.0-812098
Build number JKQ39.I337UCUAMF3
I'd like to flash the JFLTE-GPE 5.0.1 ROM via TWRP, but have been told that I will need to upgrade the bootloader. How can I do this, what tool should I use? I've searched the forums a lot & was excited about the CASUAL tool, till I read that it "will not work on Build Number I337UCUAMF3". Can JOdin3 be used to unlock/upgrade this bootloader? Or is Safestrap my only option for flashing a new ROM?
Please guide me or point me in the right direction. Thanks for taking time to answer my questions.
Click to expand...
Click to collapse
Hi, thanks for using XDA assist!
First, please create an account so you can post in other forums.
Then, ask your question here:
http://forum.xda-developers.com/showthread.php?t=2320430
Here is the main forum page for your device:
http://forum.xda-developers.com/galaxy-s4-att
The experts for your device are located there and will be best suited to guide you on your way.
Good luck!

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[Completed] lolipop to kitkat can it be done?

I have a galaxy s4 SGH-l337 provider is Att. I never rooted/hacked/flashed/done anything to my phone, it's all stock/basic.
Been a few days now after the android version V5.0.1 upstalled itself onto my phone. It's awful I wanted to get the new android version graviton, but before i can i need to root my phone. I haven't had success with using the popular rooting software because they do not support my version. So i am looking to revert back to kitkat and then to graviton. But, before i can revert back to kitkat i need the firmware file, and the place i went to had all but my phones model
Have i hit a dead end until lolipop works with a root program?
Thanks for the time. CraigK
Hi, thank you for using XDA Assist. You can flash back to nb1. See this ,http://forum.xda-developers.com/showthread.php?t=2616221. Also see this, http://forum.xda-developers.com/galaxy-s4-att. All your questions can be answered there. Don't forget to register on XDA to post questions in that forum.
Thread closed

[Q] Any complete guide on rooting the T-Mobile Galaxy Note Edge? Detailed Guide Plz?

Hello!
So I recently had trouble re-rooting my Galaxy S4 which caused the device to go useless...
Now, i dont feel that bad as the phone was aging so I took the opportunity to go buy a new phone. Thing is, most of the apps I use involve root (such as Xposed).
Heres my phone detail:
Model Number: SM-N915T
Android Version: 4.4.4
Baseband: N915TUVU1ANK3
The rest:
hxxp://i.imgur.com/tBv22br.png
(change the xx to tt since i cant post direct links yet)
Any good guide on how I can root?
search is your best friend.. especially in the General Forum
here is the link on how to root the 915T model.
http://forum.xda-developers.com/note-edge/general/easy-steps-stock-odin-n915tuvu1anjl-sm-t2943993
The steps there are for the 5.0.1
but the steps are EXACTLY for the 4.4.4 (which i am using right now, and did those steps)
good luck

[Completed] galaxy s3 sgh-i747 wont boot without sd

ok well a couple of days ago i hard bricked my phone trying to unlock my bootloader using ezunlock app. i was running cyanogenmod 11 android version 4.4.4 i was able to find an debrick image and put it on a usb and boot from the usb. but now in an attempt to get the phone to boot from the emmc i tried upgrading to cyanogenmod 12 android version 5.1.1. sadly this didnt work. im out of ideas and i did find a post about being able to flash the rom with odin and that my restore the bootloaders in my galaxy s3 sgh-i747 but im at a loss. any help i could get in solving this and hopefully getting my phone to boot on its own.
hfiatoa53 said:
ok well a couple of days ago i hard bricked my phone trying to unlock my bootloader using ezunlock app. i was running cyanogenmod 11 android version 4.4.4 i was able to find an debrick image and put it on a usb and boot from the usb. but now in an attempt to get the phone to boot from the emmc i tried upgrading to cyanogenmod 12 android version 5.1.1. sadly this didnt work. im out of ideas and i did find a post about being able to flash the rom with odin and that my restore the bootloaders in my galaxy s3 sgh-i747 but im at a loss. any help i could get in solving this and hopefully getting my phone to boot on its own.
Click to expand...
Click to collapse
Hello and thank you for using XDA Assist.
We cannot provide technical support nor can other members reply to your posts here on XDA Assist Sorry to hear about your trouble but as you know there is an XDA area dedicated to the AT&T Samsung Galaxy S3 at http://forum.xda-developers.com/galaxy-s3-att where you have posted before. I suggest you post your question with all relevant details there where the experts familiar with your device will be best able to guide you.
Good luck!
This thread is closed.

[Completed] help with verizon samsung note 2 currently on android 4.1.1

hi guys newbie here.
so i have a sch-l605 on android 4.1.1 downgraded from 4.3 thanks to this thread http://forum.xda-developers.com/showthread.php?t=2024207&nocache=1
now i know that 4.1.1 can be rooted and stuff.the problem i have that i need to install a rom that has italian language and i will sim unlock it to be usable in europe.
is this possible on this device?and how to install new rom?
any help guys
mohdfahad47 said:
Hey there, i dont know much about the carrier based variants but the basic steps are the same i guess. If you're rooted then you have to flash a custom recovery from there you can flash roms. Try googling.
Click to expand...
Click to collapse
ty for answer.
posted in the pro's thread,where the thing begin,now need to wait what they say.maybe need to install a different rom that works with CASUAL.
here: http://forum.xda-developers.com/showthread.php?t=2118348&page=165#post62930543
Hello
Thank you for using XDA Assist since you have posted in the correct Forum we will close this one and mark it complete.
Good Luck
Ragnar

[Completed] marshmallow for my moto nexus6 running 5.1.1 buildLZT28N

I have a stock unrooted Motorola nexus6 that is currently running lollipop 5.1.1 build LZY28N. I am using the AT&T straight talk sim card. I cannot get it to update to marshmallow. ive been considering unlocking the bootloader and flashing it myself, but I don't know wich build to download. from what ive gathered the LZY28N build is tmobile build. I also seen somewhere that I need to download build MRA58K. I have downloaded this build but have not proceeded because I'm not sure if it is the correct build. I want to get an official build as to not screw up my new device. I recently had a one plus one running cyanogen 12.1 and it was crashing a lot and I'm trying to prevent this from happening to this phone. anyone out there have any info for me? I know how to unlock bootloader, root,install twrp, and flash. I just need some direction as to what build to flash and have everything go as smooth as possible
Hi,
Thanks for writing to us at XDA Assist.
You can post your question in your device forum help section to get further help:
Noob Friendly Q and A Help Thread
Good luck!

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