Database Users

[Q] Unlocked Bootloader? How to change it back?

I rooted my device a few weeks ago, and 4.3 released earlier, so I completely uninstalled root, through my superuser app. 4.3 downloads, and when it came time to install, it went through the install process in about five seconds, and booted up normally. I have an unlocked bootloader, I need help changing it back to normal? Is there a way?

Can we at XDA know what phone model you have and if your
MDL or MF3
Sent from my ATT S4 MF3 using Tapatalk

Please can some one help I'm rooted stock kernal cwm recovery on mdb there is a update that started to download I quick stopped it by shutting off WiFi. How do I no what update this is ? I don't want to mess up by DL mf3 and locking bootloader . but maybe it new update 4.3. What should I do ??
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

jball said:
Can we at XDA know what phone model you have and if your
MDL or MF3
Sent from my ATT S4 MF3 using Tapatalk
Click to expand...
Click to collapse
MF3.

How do you have an unlocked bootloader. ? and what leads you to believe its unlocked ?
Sent from my SGH-I337 using Xparent Skyblue Tapatalk 2

Oh he thinks it's unlocked because of the icon on the Samsung splash screen. Lol.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

Lol if you have mf3 the bootloader is NOT unlocked.
Sent from my SGH-I337 using Tapatalk

ralphie1267 said:
Please can some one help I'm rooted stock kernal cwm recovery on mdb there is a update that started to download I quick stopped it by shutting off WiFi. How do I no what update this is ? I don't want to mess up by DL mf3 and locking bootloader . but maybe it new update 4.3. What should I do ??
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
If you are currently fully rooted and wish to stay that way then you NEVER want to update through your carrier! If you do take the update, your phone will be permanently un-rooted! You should always wait for the developer community to take a look at it and determine what the pit-falls may be and to produce alternatives (update based rooted roms).
And before everyone starts jumping on me for using the word permanently; My feeling is that until proven otherwise, it should always be presumed that the affect will be permanent to emphasize the potential severity of the action. I would be happy to be proven wrong!

We all know he either wants the padlock gone or back to completely stock rite.
Sent from my ATT S4 MF3 using Tapatalk

drichter12 said:
If you are currently fully rooted and wish to stay that way then you NEVER want to update through your carrier! If you do take the update, your phone will be permanently un-rooted! You should always wait for the developer community to take a look at it and determine what the pit-falls may be and to produce alternatives (update based rooted roms).
And before everyone starts jumping on me for using the word permanently; My feeling is that until proven otherwise, it should always be presumed that the affect will be permanent to emphasize the potential severity of the action. I would be happy to be proven wrong!
Click to expand...
Click to collapse
Im afraid your statement has already been proven to be wrong. He said he is MDB and the update he is getting would be to MF3 and there is already a root method for that firmware. Permanent is a strong word, especially given the abilities of the developers on XDA, Temporarily is a much more adequate word to use, which would the case for 4.3 MJ9, TEMPORARILY, there isn't a proven SAFE root method....as of yet.

gj23 said:
Im afraid your statement has already been proven to be wrong. He said he is MDB and the update he is getting would be to MF3 and there is already a root method for that firmware. Permanent is a strong word, especially given the abilities of the developers on XDA, Temporarily is a much more adequate word to use, which would the case for 4.3 MJ9, TEMPORARILY, there isn't a proven SAFE root method....as of yet.
Click to expand...
Click to collapse
I think you missed my point. Yes, there is a a way to root MF3 but not a clean bootloader/recovery replacement. The reason for using the word permanent was to emphasize that there are NO guarantees of root for those who choose to update from the carrier as soon as an update becomes available. I agree that there is a high likelihood that some form of root will be made available but until that method is discovered the user should assume he/she will be stuck with what they have. An excellent example of such is exactly the MF3 release he is talking about. If you receive the MF3 OTA you no longer have an unlocked bootloader available and if you desire running another rom you are stuck with a kludge solution, not a clean one.

drichter12 said:
I think you missed my point. Yes, there is a a way to root MF3 but not a clean bootloader/recovery replacement. The reason for using the word permanent was to emphasize that there are NO guarantees of root for those who choose to update from the carrier as soon as an update becomes available. I agree that there is a high likelihood that some form of root will be made available but until that method is discovered the user should assume he/she will be stuck with what they have. An excellent example of such is exactly the MF3 release he is talking about. If you receive the MF3 OTA you no longer have an unlocked bootloader available and if you desire running another rom you are stuck with a kludge solution, not a clean one.
Click to expand...
Click to collapse
I'm not real sure what you mean by a "kludge solution", but I'm on MF3 with Safestrap and there are quite a few ROMS available to flash and some of them are as good as any I've run before (excluding none). I would be willing to bet that 4.3 will have root and ROMS available in a very short time. Im quite certian that Hashcode will have Safestrapup and running on 4.3 before ya know it and if not, I'm happy with the device and options I have with it as it is now. I do agree that anyone who chooses to take the update right away, and then expect all the development options, are wishful thinking, and/or not doing their research

MDB,MDL,MF3,MJ9
The above list has always been bootloader locked.yes rooted minus the new MJ9 and a "work around" to flashing roms.
I have faith that one day someone will crack the lock,just not before I switch to a Nexus 5
Sent from my ATT S4 MF3 using Tapatalk

[Q] KitKat OTA (NC4) and SU Survival Mode

I've read in a couple places of people having success taking the the NC4 OTA on their stock rooted device with SU Survival Mode on and being able to keep root after the update.
I was just wondering if any has tried that and if they were successful or not, thanks!

I know some people just want root, but really what other point is there to doing this?? This sounds just like what happened over in the S3 forum when people who wanted 4.3 ota so desperately they ended up getting hard bricks and relocked bootloaders.
Taking the OTA, you are giving up kernel modules on NC2 and the ability to go back to MJE if you need. For anyone that missed it, read this thread about why NC2 is unique. Just flash NC4 baseband (http://forum.xda-developers.com/showpost.php?p=52633373&postcount=391), and stay on NC2 til devs cook up a safe NC4 to use. What Im doing if you ever want to use kexec in the future for aosp roms when it comes

I successfully did this.
I had to Odin back to stock 4.3 because OTA would fail, but once that finished and re-rooted with Kingo I took the update in survival mode retaining root.
I'm one of those just wanting root.
Sent from my SM-N900V using XDA Premium 4 mobile app

NeoMagus said:
I know some people just want root, but really what other point is there to doing this?? This sounds just like what happened over in the S3 forum when people who wanted 4.3 ota so desperately they ended up getting hard bricks and relocked bootloaders.
Taking the OTA, you are giving up kernel modules on NC2 and the ability to go back to MJE if you need. Just flash NC4 baseband, and stay on NC2 til devs cook up a safe NC4 to use. What Im doing if you ever want to use kexec in the future for aosp roms when it comes
Click to expand...
Click to collapse
Well, I'm one of the people that only care about simple root access, so that's why I'm curious.

NeoMagus said:
I know some people just want root, but really what other point is there to doing this?? This sounds just like what happened over in the S3 forum when people who wanted 4.3 ota so desperately they ended up getting hard bricks and relocked bootloaders.
Taking the OTA, you are giving up kernel modules on NC2 and the ability to go back to MJE if you need. Just flash NC4 baseband (http://forum.xda-developers.com/showpost.php?p=52633373&postcount=391), and stay on NC2 til devs cook up a safe NC4 to use. What Im doing if you ever want to use kexec in the future for aosp roms when it comes
Click to expand...
Click to collapse
Jeez I shouldnt have even said anything about being able to take the OTA w/survival mode.

Theres nothing wrong with taking it if you guys have no issue with not being able to change kernels in the future or downgrade with Odin. If you screw up the survival process though and lose root, beans has already said it will probably be a very long time til there will be an exploit
http://forum.xda-developers.com/showpost.php?p=52603311&postcount=12
http://forum.xda-developers.com/showpost.php?p=52609797&postcount=42
Theres nothing on NC4 coming from NC2 worth losing that imo it shouldnt be long til you see NC4 roms in the dev section pre rooted. But its your phone, and we all take our own risks.

matt_1224 said:
Jeez I shouldnt have even said anything about being able to take the OTA w/survival mode.
Click to expand...
Click to collapse
Thank you for doing so - it is appreciated by many. Sometimes people get caught up in their own circumstances and cannot appreciate that not everything is so black and white.
Sent from my SM-N900V using XDA Premium 4 mobile app

Like I said, it worked for me after doing some pre-maintenance.
My thought process was that being it'll probably be close to a year before Verizon releases another update... I plan to jump ship before I see another OTA.
That, or the awesome Devs here that give Big Red the finger and find ways to do the impossible.
Sent from my SM-N900V using XDA Premium 4 mobile app

Reilly1812 said:
Sometimes people get caught up in their own circumstances and cannot appreciate that not everything is so black and white.
Sent from my SM-N900V using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You mean some people rush to have the newest things, that they dont realize what they are giving up for it.
http://forum.xda-developers.com/showthread.php?t=2750875
This thread already exists in Q&A and was simply trying to save some headaches now as well as down the road for those who don't know...
again if all you care about is root on your phone... nobody is stopping you from the attempt

There is already a thread for this:http://forum.xda-developers.com/showthread.php?t=2750875
Thread closed and moved to Q and A like its supposed to be.

Can we still change APN settings without root?, other ST&T phones for ST LTE?

I do not have an S4. I ordered one from Swappa expecting to use it on Straighttalks LTE service. Already ordered the sim card as well.
However, of course right after this I started digging a bit more and found that it is currently impossible to root an S4 after it's updated to 4.4.2. The one I ordered is updated.
I'd highly prefer to have root. I don't "need" it. But, if I can achieve root without much issue I'd prefer it.
I did find a few posts about using something called Odin and safestrap. I didn't read fully through them yet. But, I'm curious if doing these methods actually work for downgrading? If they do what are the "limits"? Can I put any Rom in or is it only a specific Rom?
Will I likely run into issues doing this while using the ST LTE settings?
Just trying to cover my bases before I start on this phone. It's not here yet and I'd rather resell it if I'm better off doing that.
I am curious what would be suggested purchase for the ST LTE service since it seems the AT&T S4 is out of question if I can't even update the damn thing. I'd rather be capable of updates and having root. I don't care about being able to do Roms and stuff.

Dude, you can have root on any firmware but it may not be easy to get it. Do you know what firmware your device will have?
Odin flashes the stock firmware onto your device. Safestrap is a custom recovery that you'll need to flash custom touch wiz roms
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
Dude, you can have root on any firmware but it may not be easy to get it. Do you know what firmware your device will have?
Odin flashes the stock firmware onto your device. Safestrap is a custom recovery that you'll need to flash custom touch wiz roms
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
I've been reading nonstop that the 4.4.2 AT&T Galaxy s4 is not rootable? If this is inaccurate can you lead me to a post that shows the method for rooting this version?
I do not know anything about the phone other than it being updated to 4.4.2.

GamerXavier said:
I've been reading nonstop that the 4.4.2 AT&T Galaxy s4 is not rootable? If this is inaccurate can you lead me to a post that shows the method for rooting this version?
I do not know anything about the phone other than it being updated to 4.4.2.
Click to expand...
Click to collapse
It can be rooted. You'll need to downgrade thru Odin to mk2 firmware, root it with saferoot then instill safestrap and flash a 4.4.2 rooted rom Start here
http://forum.xda-developers.com/showthread.php?p=49562527
Sent from my Nexus 5 using XDA Free mobile app
And keep asking questions. You're limited to the roms you can flash but you can get root

jd1639 said:
It can be rooted. You'll need to downgrade thru Odin to mk2 firmware, root it with saferoot then instill safestrap and flash a 4.4.2 rooted rom Start here
http://forum.xda-developers.com/showthread.php?p=49562527
Sent from my Nexus 5 using XDA Free mobile app
And keep asking questions. You're limited to the roms you can flash but you can get root
Click to expand...
Click to collapse
I'm curious about Cyanogenmod? If it's worth it or possible atm?
Once I get the phone probably later this week I'll get started on the process.

GamerXavier said:
I'm curious about Cyanogenmod? If it's worth it or possible atm?
Once I get the phone probably later this week I'll get started on the process.
Click to expand...
Click to collapse
No, cm is not possible. Only touch wiz based roms
Edit, as an fyi, if your phone is on 4.4.2 it'll be on nb1 or nc1 firmware. Read up on how to downgrade to mk2. Look in the general forum. Also look at rebel1699's venom magic tool kit. There's a lot of reading and studying to do before you get your phone
Sent from my Nexus 5 using XDA Free mobile app

http://www.androidpolice.com/2014/0...ve-and-maybe-almost-any-other-current-device/
Is this going to work on the ATT S4? It's stated that it would. Would save me the trouble of doing all of this other stuff.

GamerXavier said:
http://www.androidpolice.com/2014/0...ve-and-maybe-almost-any-other-current-device/
Is this going to work on the ATT S4? It's stated that it would. Would save me the trouble of doing all of this other stuff.
Click to expand...
Click to collapse
Yes it does if you're on nc1 firmware. Seems it didn't work on nb1
Sent from my Nexus 5 using XDA Free mobile app

I shall hope to get lucky and have the NC1 firmware

Help a noob get PAC on his phone

I've hard bricked this thing once trying to flash a rom once. Tried to gain custom recovery via AUTOREC. Should be called Autowreck.
Sometimes it is best just to ask to be pointed in the right direction.
I just learned about LOKI and SAFESTRAP. BUT are these just for TW based ROMS? I want a CM based ROM. PACROM, specifically. I see others with this AT&T phone running it.
Will someone please help a noob with a tutorial or advice and stop me from running in circles? W/ rooted 4.4.2, NC1 build.

Start with reading well the SafeStrap thread by Hashcode in Q&A
and the All Thinks ATT, MK2 in General
You can only use SafeStrap and can not flash non TW roms or custom recoveries/kernels, so CM AOSP etc
Sorry

rugmankc said:
Start with reading well the SafeStrap thread by Hashcode in Q&A
and the All Thinks ATT, MK2 in General
You can only use SafeStrap and can not flash non TW roms or custom recoveries/kernels, so CM AOSP etc
Sorry
Click to expand...
Click to collapse
Been reading the safe strap thread. 89 pages! Stumped on the first one. ENCRYPTED? Not sure. How do I tell? Nb1, Mk2, Mf3 software? No idea. Did not see it in settings> about device. How do I tell is the next step I guess.
On to check the All Thinks Mk2 thread. Sorry for my noobness.

New Song said:
Been reading the safe strap thread. 89 pages! Stumped on the first one. ENCRYPTED? Not sure. How do I tell? Nb1, Mk2, Mf3 software? No idea. Did not see it in settings> about device. How do I tell is the next step I guess.
On to check the All Thinks Mk2 thread. Sorry for my noobness.
Click to expand...
Click to collapse
Get a terminal emulator on your phone. In it type:
su
getprop ro.bootloader
What does it say? Look at the last three characters
Edit, in about devices what is your baseband, last three characters?
Sent from my Nexus 5 using XDA Free mobile app

Sorry, I thought you NC1 now?
jd will get you sorted, he is more hands on with safestrap than i am
but, the gist of it is going to All Thinks ATT, MK2 and to post 5
but read all you can in both threads--:good:

Nc1. So this is the SafeStrap file: JFLTE-3.72-kk-B01.apk. How a bow the encryption determination? Sound like a bootloader if it is encrypted.

New Song said:
Nc1. So this is the SafeStrap file: JFLTE-3.72-kk-B01.apk. How a bow the encryption determination? Sound like a bootloader if it is encrypted.
Click to expand...
Click to collapse
Did you get nb1 from your baseband? Is your device encrypted? That's different than than the bootloader. Your bootloader is definitely locked. But you can root by updating to nc1 and using towelroot and then safestrap.
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
Did you get nb1 from your baseband? Is your device encrypted? That's different than than the bootloader. Your bootloader is definitely locked. But you can root by updating to nc1 and using towelroot and then safestrap.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
NC 1
I am rooted. SS installed. ROM DL'ed ready to go. Creating ROM slot. Or trying t seems stuck. I know it takes about 5 minutes. But it's been about 15-20
sorry for the pic quality. No zoom on this tab 4. It's next.

New Song said:
NC 1
I am rooted. SS installed. ROM DL'ed ready to go. Creating ROM slot. Or trying t seems stuck. I know it takes about 5 minutes. But it's been about 15-20
sorry for the pic quality. No zoom on this tab 4. It's next.
Click to expand...
Click to collapse
You have to use the stock slot, not a secondary slot
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
You have to use the stock slot, not a secondary slot
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Aaaaand. S'S stopped working. Uninstalled, reinstalled and the same. Technology fails me.

New Song said:
Aaaaand. S'S stopped working. Uninstalled, reinstalled and the same. Technology fails me.
Click to expand...
Click to collapse
What are you trying to flash? PAC isn't going to work, it's cm based. You can only flash touch wiz based roms
Sent from my Nexus 5 using XDA Free mobile app

Anything else. I have Gravitron zip ready to go. But I cannot even get S'S to open now. "SafeStrap has stopped working". Even after attempted reinstalls. If there was someone here local I could just delegate this to, I would.

New Song said:
Anything else. I have Gravitron zip ready to go. But I cannot even get S'S to open now. "SafeStrap has stopped working". Even after attempted reinstalls. If there was someone here local I could just delegate this to, I would.
Click to expand...
Click to collapse
You probably have to use Odin to re-flash nb1 and start over
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
You probably have to use Odin to re-flash nb1 and start over
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
That may be. Got safestrap to start working by using se linu mode changer. Still stuck at updating partition details. Gonna start a thread on that I think. Maybe one on the search functions too.

New Song said:
That may be. Got safestrap to start working by using se linu mode changer. Still stuck at updating partition details. Gonna start a thread on that I think. Maybe one on the search functions too.
Click to expand...
Click to collapse
Just as an FYI, I've had very good results with Golden Eye installed via SafeStrap. No problems with it, whatsoever, in my experience. That being said, I'm tired of being restricted to touchwiz ROMs so I've bought a T-Mobile S4 (unlocked SIM/Bootloader) and will be selling my ATT one soon.
Marc

Frankenscript said:
Just as an FYI, I've had very good results with Golden Eye installed via SafeStrap. No problems with it, whatsoever, in my experience. That being said, I'm tired of being restricted to touchwiz ROMs so I've bought a T-Mobile S4 (unlocked SIM/Bootloader) and will be selling my ATT one soon.
Marc
Click to expand...
Click to collapse
Starting to feel the same way. Flashing this sgh-i337 is turning out to be quite an infuriating ordeal. So much conflicting info. Allllll these ROMs available for S4, it seems. But they don't work because this version isn't compatible. And the Tw ones I've tried ALL DAY are not working either. Granted, I was not using SS correctly initially, but now that they are successfully loading in the stock slot are not working. Graviton never boots, stays on the ouroboros snake screen. Imperium has no data or wifi etc (i9505 rom? I tried it as it said it was verified working 9th i337. Nope. Figured it was a problem when it said i9505 on my model). Goldeneye, actually can connect, wifi etc. But when I change settings in Wanam, it does not take them (after reboot). Had all the other connectivity issues until I flashed a patch. Also, I was pretty happy to see than I could activate hotspot. But my device was nowhere to be found by other devices. Modules, kernals, patches, oh my... out of all the tutorials for S4's on the wide wide world of internets, nothing seems to fly. This must be the red headed bastard child of Android.
I know it is all user error, but can nothing be simple?
Just want a simple rom and hotspot. That looks awesome. Hrm.

About to try this GE download. GE-XXUGNG4-37.zip. I tried the later NG-8-38 version last time. And yes, I did the ST update at&t module update previously.

Great googley moogley! I think he's finally got it, folks! Ooooh. Niiice. So smooth. Roomy!
This hacking biz ain't for the faint of heart. Thanks guys!!! MUCH APPRECIAT3D! :good:

Paraphrasing, I think, Tom Hanks
"It's suppose to hard, the hard is what makes it great. If it wasn't hard, everyone would do it."
:good:

rugmankc said:
Paraphrasing, I think, Tom Hanks
"It's suppose to hard, the hard is what makes it great. If it wasn't hard, everyone would do it."
:good:
Click to expand...
Click to collapse
Avoid the clap.... Jimmy Dugan.
Hey that's good advice kid....

What to lookout for

I am looking to get rid of my htc one m8 and go back to Samsung. I know the s5 does not have an unlocked boot loader but it looks like custom roms can happen via safestrap. My question is, when buying the phone used, is there a specific software version i DO NOT want? The goal is to root, safestrap and then put some sort of custom rom on the phone.
Thanks

dougmod said:
I am looking to get rid of my htc one m8 and go back to Samsung. I know the s5 does not have an unlocked boot loader but it looks like custom roms can happen via safestrap. My question is, when buying the phone used, is there a specific software version i DO NOT want? The goal is to root, safestrap and then put some sort of custom rom on the phone.
Thanks
Click to expand...
Click to collapse
Currently you are good to go even on the latest NI2 update. You only need to downgrade the kernel to NCG via odin, run towel root, then reflash the newest NI2 kernel. There is a good write-up on it. Just look a few posts down.

BladeRunner said:
Currently you are good to go even on the latest NI2 update. You only need to downgrade the kernel to NCG via odin, run towel root, then reflash the newest NI2 kernel. There is a good write-up on it. Just look a few posts down.
Click to expand...
Click to collapse
Thanks for the reply. I'm so excited to get off of the m8. The reception is terrible.
I also see that the dev scene looks pretty limited in the Verizon section. Is that because everything has been unified like the s4 so I can pretty much use any rom? AOsp, cm, etc

dougmod said:
Thanks for the reply. I'm so excited to get off of the m8. The reception is terrible.
I also see that the dev scene looks pretty limited in the Verizon section. Is that because everything has been unified like the s4 so I can pretty much use any rom? AOsp, cm, etc
Click to expand...
Click to collapse
No, unfortunately, things are somewhat limited as the bootloader remains unlocked for the consumer edition so no custom kernels.

I think he meant to say the bootloader remains locked on the retail version.
Sent from my SM-G900V using XDA Free mobile app

kclive said:
I think he meant to say the bootloader remains locked on the retail version.
Sent from my SM-G900V using XDA Free mobile app
Click to expand...
Click to collapse
thanks, you are correct :silly: