Bootloader unlocking - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

So I'm new to this forum, and I've done some reading and I'm a bit confused. I'm seeing some roms available making me believe that the bootloader has been unlocked and a method is out there on how to root and install a custom recovery. Can anyone help clear this up for me? Thanks!
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the canadian variants are reported to come with unlocked bootloaders. the att i337 bootloader unlock hack will likely be released after the verizon sgs4 is released.
sent from my black at&t sgs4

sportsinger75 said:
So I'm new to this forum, and I've done some reading and I'm a bit confused. I'm seeing some roms available making me believe that the bootloader has been unlocked and a method is out there on how to root and install a custom recovery. Can anyone help clear this up for me? Thanks!
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Click to expand...
Click to collapse
This forum is combined with other variants of the GS4. If you're using the AT&T Galaxy S4, your bootloader is locked and is going to be until Dan releases the hack.

Thermalwolf said:
This forum is combined with other variants of the GS4. If you're using the AT&T Galaxy S4, your bootloader is locked and is going to be until Dan releases the hack.
Click to expand...
Click to collapse
how confusing... so the motochopper methond won't work on att s4 devices?
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Yze said:
how confusing... so the motochopper methond won't work on att s4 devices?
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Not sure what you're reading that would lead you to believe that. It works just fine. Did you even try it?

task650 said:
Not sure what you're reading that would lead you to believe that. It works just fine. Did you even try it?
Click to expand...
Click to collapse
that's what I figured. confused myself with seeing bootlocker being locked and automatically assumed that meant not being able to root. haven't tried it yet, still on my s3 using your rom for the time being. my s4 is sitting here sun bathing tho
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Related

[Q] Why is there a CM rom for ATT?

i thought we were still waiting for the verizon model to come out before the unlocked bootloader method to be released. how are we able to have CM for ATT? is it this Loki stuff that is making that possible?
Some people bought their phones off contract and have unlocked bootloaders. Also by using a company for a fee can get you an unlock code.
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Sorry for the noob question, but I got my AT&T S4 from Best Buy with my 2 year upgrade contract for $200, and my friend bought his from Best Buy AT&T S4 off the contract except a lot more expensive at $749.99. Is there a difference as I thought they were both i337 models... and all were locked bootloaders...
Not to mention if you use the OUDHS recovery, it's set up to Auto-Loki any ROM which is why it would make a TW-based CM work just fine. That being said, you're going to be dealing with nightlies, so if you're not ready to have a few issues here and there, it's not worth it to you to install it until an official release comes along.
RujinXERO said:
i thought we were still waiting for the verizon model to come out before the unlocked bootloader method to be released. how are we able to have CM for ATT? is it this Loki stuff that is making that possible?
Click to expand...
Click to collapse
The Verizon model came out 3days ago
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Chris13002 said:
Sorry for the noob question, but I got my AT&T S4 from Best Buy with my 2 year upgrade contract for $200, and my friend bought his from Best Buy AT&T S4 off the contract except a lot more expensive at $749.99. Is there a difference as I thought they were both i337 models... and all were locked bootloaders...
Click to expand...
Click to collapse
Buying through the major carriers means a subsidized cost. If you're buying off-contract, it means you're the one paying for that subsidization and not the carrier, hence the larger cost. This is exactly why people flock to CL when buying phones off-contract because it's significantly cheaper, It doesn't change anything about the phone's internal hardware, An I337 bought at BB off-contract is still the same physical model as one bought on-contract through an AT&T Store.
Phoneguy589 said:
Some people bought their phones off contract and have unlocked bootloaders. Also by using a company for a fee can get you an unlock code.
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Click to expand...
Click to collapse
Umm. No.
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Phoneguy589 said:
Some people bought their phones off contract and have unlocked bootloaders. Also by using a company for a fee can get you an unlock code.
Sent from my SAMSUNG-SGH-I337 using xda premium
Click to expand...
Click to collapse
I think you're a bit confused. What you're talking about is for a SIM unlock. Completely unrelated to the bootloader unlock we're mentioning here. As of right now, there is no bootloader unlock available for the AT&T/VZW GS4s
oh i thought it came out on the 30th.. so i guess i gotta search around for the unlock method? not sure i understand this "Loki" stuff
Phoneguy589 said:
Some people bought their phones off contract and have unlocked bootloaders. Also by using a company for a fee can get you an unlock code.
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Click to expand...
Click to collapse
Lmao this made me chuckle
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RujinXERO said:
oh i thought it came out on the 30th.. so i guess i gotta search around for the unlock method? not sure i understand this "Loki" stuff
Click to expand...
Click to collapse
Loki is not really an unlock, it's more of a way to circumvent the bootloader since as of right now there's no way to unlock the AT&T variant GS4s. Look at this thread first to download what you'll need for root:
http://forum.xda-developers.com/showthread.php?t=2252248
After that, you can visit this thread here and find what you'll need to use a recovery. Here's one that will Auto-Loki your ROMs for you:
http://forum.xda-developers.com/showthread.php?t=2291956
Or you can run TWRP/CWM and flash this kernel after installing whatever ROM you choose for Loki:
http://forum.xda-developers.com/showthread.php?t=2292341
With these tools installed, you can now run any ROM of your choice, but try to stick to those more closely based to the stock ROM as you can to keep all of your features working.
Hope that helps.
neo_styles said:
Loki is not really an unlock, it's more of a way to circumvent the bootloader since as of right now there's no way to unlock the AT&T variant GS4s. Look at this thread first to download what you'll need for root:
http://forum.xda-developers.com/showthread.php?t=2252248
After that, you can visit this thread here and find what you'll need to use a recovery. Here's one that will Auto-Loki your ROMs for you:
http://forum.xda-developers.com/showthread.php?t=2291956
Or you can run TWRP/CWM and flash this kernel after installing whatever ROM you choose for Loki:
http://forum.xda-developers.com/showthread.php?t=2292341
With these tools installed, you can now run any ROM of your choice, but try to stick to those more closely based to the stock ROM as you can to keep all of your features working.
Hope that helps.
Click to expand...
Click to collapse
so yeah i found that TWRP comes loki'd up so i flashed it but doesnt auto-loki the roms and kernals so i was thinking of flashing that recovery you just linked.. but really all i want is Google Wallet to work.. so from the looks of it all i need is a Deodexed TW Rom and i think i found one http://forum.xda-developers.com/showthread.php?t=2280556 after that i just flash the GW fix if i'm not mistaken..
RujinXERO said:
so yeah i found that TWRP comes loki'd up so i flashed it but doesnt auto-loki the roms and kernals so i was thinking of flashing that recovery you just linked.. but really all i want is Google Wallet to work.. so from the looks of it all i need is a Deodexed TW Rom and i think i found one http://forum.xda-developers.com/showthread.php?t=2280556 after that i just flash the GW fix if i'm not mistaken..
Click to expand...
Click to collapse
Just keep your eyes on a thread for the GW fix. Should be in the Android Development (not Original) thread. I've skimmed past it several times in the past couple days. And, yes, OUDHS will auto-Loki. TWRP as of right now will not.
neo_styles said:
Just keep your eyes on a thread for the GW fix. Should be in the Android Development (not Original) thread. I've skimmed past it several times in the past couple days. And, yes, OUDHS will auto-Loki. TWRP as of right now will not.
Click to expand...
Click to collapse
found the fix thread.. seems to be too difficult for me.. hangs at boot every time i flash that zip.. guess i'll just have to wait until someone has a rom with the fix preinstalled
ogxku5h said:
Lmao this made me chuckle
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Click to collapse
So people that have an At&t S4 with the bootloader unlocked FROM At&t can't run Cm10.1? Wow, you should let them know.
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Phoneguy589 said:
So people that have an At&t S4 with the bootloader unlocked FROM At&t can't run Cm10.1? Wow, you should let them know.
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Click to expand...
Click to collapse
Not an unlocked bootloader. Bootloader will be locked if u get the s4 from att. U can install twrp using goo manager then flash a loki'd rom/kernel if you wish. Make sure they are loki'd.
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They give you the unlock code if you buy it contract free.
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Phoneguy589 said:
They give you the unlock code if you buy it contract free.
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Click to collapse
Again. No. You are talking about SIM unlock - which has NOTHING to do with this thread. This thread is about BOOTLOADER unlocking.
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Baldilocks said:
Again. No. You are talking about SIM unlock - which has NOTHING to do with this thread. This thread is about BOOTLOADER unlocking.
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Click to collapse
I'm sorry if I misunderstood. I was under the impression unlocking via website or at&t imei unlock code would unlock the bootloader. My fault.
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[Q] Bootloader

This must have been asked before in other threads, but just to get up to speed here ...
Do we know if the bootloader on the SPH-L720 can be flashed?
I know AT&T and Verizon haven't been cracked yet, but I'm hoping the Sprint model has.
Any details? Thanks!
-- Andy
The boot loader is cracked by default. No worries. With sprint you can crack flash until device blows up.
No
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None of the bootloaders are cracked. We received a leak and sprint hasn't messed with us since. There is a big difference between cracked and leaked.
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eskomo said:
None of the bootloaders are cracked. We received a leak and sprint hasn't messed with us since. There is a big difference between cracked and leaked.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
The Sprint GS4 has an unlocked bootloader. No leaks required. The fact that you can Odin a custom recovery and flash a rom right out of the box without even rooting should tell you everything you need to know.
Sent from my SPH-L720 using XDA Premium 4 mobile app
maxpower7 said:
The Sprint GS4 has an unlocked bootloader. No leaks required. The fact that you can Odin a custom recovery and flash a rom right out of the box without even rooting should tell you everything you need to know.
Sent from my SPH-L720 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
So I can go ahead and get the L720 and do all the rooting and custom bootloading,
without having to worry if it's possible, like those Verizon folks?
This is awesome! I hope Josh is working on an S4 JellyBomb.
andyistic said:
So I can go ahead and get the L720 and do all the rooting and custom bootloading,
without having to worry if it's possible, like those Verizon folks?
This is awesome! I hope Josh is working on an S4 JellyBomb.
Click to expand...
Click to collapse
This is the easiest phone I've ever rooted (out of 11 phones), hands down.
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[Q] root for latest android 4.3 update?

I recently received the ota 4.3 update for my at&t gs4, but I've been dying to try cyanogen mod on my phone or at least be able to remove a little bloatware. Could anyone point me to a tutorial somewhere to root this thing if it's possible yet? I do have a little experience with flashing roms and rooting with my old samsung replenish, but only with odin... thanks.
-EDIT Also is kingo really malware like many people on xda say? And does kingo work with the new MJ9 build for AT&T's S4?
If you have a little experience flashing Roms than you'll be experienced in the art of Google search. There are many threads about this already
Use this guide http://forum.xda-developers.com/showthread.php?t=2531704
Works the same for att even though its for verizon. Same root method but beware it could add malicious stuff to your phone and computer. Do a little researching first before you do anything. Good luck
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And even when your rooted there is still no custom recovery for 4.3...so no rom flashes are possible
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mg2195 said:
And even when your rooted there is still no custom recovery for 4.3...so no rom flashes are possible
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Click to expand...
Click to collapse
So no cyanogenmod?
HOrobOD said:
So no cyanogenmod?
Click to expand...
Click to collapse
nope
Is it possible to be able flash cyanogen mod on our devices in the future?
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7mada said:
Is it possible to be able flash cyanogen mod on our devices in the future?
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Click to expand...
Click to collapse
Maybe. When someone smarter than I am comes up with a way to unlock the bootloader or other exploit.
jd1639 said:
Maybe. When someone smarter than I am comes up with a way to unlock the bootloader or other exploit.
Click to expand...
Click to collapse
What if someone asked att to unlock the bootloader?
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7mada said:
What if someone asked att to unlock the bootloader?
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Click to expand...
Click to collapse
Good luck with that
jd1639 said:
Good luck with that
Click to expand...
Click to collapse
Oh no !!
Then maybe I'm changing my mobile soon.
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7mada said:
Oh no !!
Then maybe I'm changing my mobile soon.
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Click to expand...
Click to collapse
T-Mobile is the only one that doesn't, Verizon and sprint do as well. Goodluck with everything.
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[email protected] said:
If you have a little experience flashing Roms than you'll be experienced in the art of Google search. There are many threads about this already
Use this guide http://forum.xda-developers.com/showthread.php?t=2531704
Works the same for att even though its for verizon. Same root method but beware it could add malicious stuff to your phone and computer. Do a little researching first before you do anything. Good luck
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks for the link to the tutorial. I've been looking stuff up about vroot and apparently it contains some sort of trojan... I also read a comment on YouTube where someone with the at&t MJ9 build had success with it but what are the risks other than bricking?

is the g2 bootloader unlocked?

I want to switch from the s4. the main thing killing development there is the damn locked bootloader. does the g2 have the same problem or are all otas unlockable? (this would be for Verizon)
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reinaldistic said:
I want to switch from the s4. the main thing killing development there is the damn locked bootloader. does the g2 have the same problem or are all otas unlockable? (this would be for Verizon)
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
I can't speak for all variants of the G2, but as a Verizon user I can confirm that the bootloader is locked. With that said, there is an exploit to get around this. Check out the development section for more info.
reinaldistic said:
I want to switch from the s4. the main thing killing development there is the damn locked bootloader. does the g2 have the same problem or are all otas unlockable? (this would be for Verizon)
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
ours is technically locked, but due to a workaround (that I don't really understand) it might as well not be. we flash roms, mods, radios, and kernals all with very few problems.
reinaldistic said:
I want to switch from the s4. the main thing killing development there is the damn locked bootloader. does the g2 have the same problem or are all otas unlockable? (this would be for Verizon)
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
You sound just like me I was wondering the same thing before I got rid of my s4 but yes there is a way to get a custom recovery and flash custom ROMs unlike on the s4
Sent from my LG-VS980 using xda app-developers app
yes it is locked on every variant (bar sprint). But that does not matter for ROM's and recovery, as they are lokified. :victory:
MalignantQuechnitlan said:
yes it is locked on every variant. But that does not matter for ROM's and recovery, as they are lokified. :victory:
Click to expand...
Click to collapse
Wrong the sprint bootloader is unlocked.
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mchlbenner said:
Wrong the sprint bootloader is unlocked.
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Click to expand...
Click to collapse
Ahh well thats interesting haha
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So what's the deal with the canadian version

So I got the 900W8 canadian version and go tit rooted, now my questions are why do we not have our own forum or do we need it. What can I flash? It's been a while since i've been on samsung. Can I flash other rom but just need my baseband or are there other thing sI should be looking out for. Any help would be great Thanks
bodson66 said:
So I got the 900W8 canadian version and go tit rooted, now my questions are why do we not have our own forum or do we need it. What can I flash? It's been a while since i've been on samsung. Can I flash other rom but just need my baseband or are there other thing sI should be looking out for. Any help would be great Thanks
Click to expand...
Click to collapse
bump, ideas anyone
Glad I found this post, I too am curious. I wonder if it will be like when I had the canadian s3 and could just flash the AT&T rooms just fine. Gonna hold of rooting the s5 until this is cleared up
longjohnsteve said:
Glad I found this post, I too am curious. I wonder if it will be like when I had the canadian s3 and could just flash the AT&T rooms just fine. Gonna hold of rooting the s5 until this is cleared up
Click to expand...
Click to collapse
Rooting was no issues I used chainfires method and he has a file for our W8 model. It's more the roms I curious about.
Sent from my SM-G900W8 using XDA Premium 4 mobile app
bodson66 said:
Rooting was no issues I used chainfires method and he has a file for our W8 model. It's more the roms I curious about.
Click to expand...
Click to collapse
Yeah, thats what I meant. Gonna wait in general until the rom variants are sorted, who knows maybe there will even be a way to root without trip.
Hey guys. I got a notification about a software update for my Rogers G900W8.
Was wondering if I should apply this update and would it affect root?
Sent from my SM-G900W8 using XDA Premium 4 mobile app
I made a post about this the next day the S5 was lunch. Rooting wasn't an issue for me as for flashing ROMS, some are compatible here, just need to ask them first. I'm wondering if we'll get our forum as well.
Tybalt said:
Hey guys. I got a notification about a software update for my Rogers G900W8.
Was wondering if I should apply this update and would it affect root?
Sent from my SM-G900W8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I got my phone 5 days ago had the same update notification, I did the update and then used chainfires root file and AL worked well no issues with that.
Sent from my SM-G900W8 using XDA Premium 4 mobile app
xaznxplaya said:
I made a post about this the next day the S5 was lunch. Rooting wasn't an issue for me as for flashing ROMS, some are compatible here, just need to ask them first. I'm wondering if we'll get our forum as well.
Click to expand...
Click to collapse
I would think most roms would work, I'm just wondering about our modem and baseband. Is it just a matter of flashing our modems to ensure lte function.
Sent from my SM-G900W8 using XDA Premium 4 mobile app
bodson66 said:
I would think most roms would work, I'm just wondering about our modem and baseband. Is it just a matter of flashing our modems to ensure lte function.
Sent from my SM-G900W8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Meh, I didn't think about that =/. I guess you get no signals if modem/baseball aren't compatible. Is there a link to get our modem/baseband?
On the Note 3 N900w8 users got lucky, they could downgrade to JellyBean and back to Kitkat without issues, could root (on JB) without tripping KNOX and can pretty much flash ANY international ROM on their device (in this case the N9005 ROMs, N900T ROMs etc) -- IT is possible, now I use this term very very loosely that you *may* be able to flash a whole lot more than w8 only ROMs.

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