Hi!
I got S4 at At&t today. (excited ) I begun to read threads after threads. I came across this link:
http://forum.xda-developers.com/showthread.php?t=2283918
So, after that, I gonna do set up CWM nandroid back up?
What about Bootloader? I have experience on previous device, Verizon Samsung Galaxy s3 unlocked bootloader.
Then install At&t roms only?
I have S4 on at&t about device...
Model number - SGH 1337
Android version - 4.2.2
baseband version - 1337UCUAMDL
build number JDQ39.1337UCUAMDL
Thanks for reading!
Anyone know about device locked or unlocked bootloader?
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LeonKnight12 said:
Anyone know about device locked or unlocked bootloader?
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It has a locked bootloader
Also, you are lucky to still be on MDL firmware, DO NOT update to the MF3 firmware or you will lose ability to root your S4. My advice would be to remove sim card and turn off Wifi (to prevent accidentally updating) then root phone with Motochopper. Once rooted go freeze the update apks to ensure it does not update on you later. MF3 is unrootable as of now so DO NOT update if you want root!
I think you mean MF3. And yes, you have a locked bootloader, you should use this...and he is right do NOT do a update, once you do you lose root, and there is no way back just yet.
http://forum.xda-developers.com/showthread.php?t=2297900
Got it. Thanks!
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Related
Hello guys I own a Galaxy S4 SGH-I337M, Fido Unlocked (https://www.fido.ca/)
So my Question is, may I root and firmware flash this phone without losing the unlocked. I mean if I root and flash this phone will it be locked?
Will work Motochopper? http://forum.xda-developers.com/showthread.php?t=2252248
Thanks for your help
No it well not lock it if you root. Once it's unlocked it will remain that way
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jd1639 said:
No it well not lock it if you root. Once it's unlocked it will remain that way
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Thank you very much!
Another question.
So no problem if use any custom firmware after rooting? Fido comes with some apps, if these apps are removed after flashing new firmware will be any problem?
Just got my S4 and its on MDB. Im gonna root but I checked to see if there was a software update and it says my phone is up to date? Isnt there a MF3 update That locks the bootloader? Also is my version able to be rooted?
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I believe the bootloader is already locked, but rootable. If you update to mf3 you won't be able to root anymore. Don't do it.
ahfu25 said:
Just got my S4 and its on MDB. Im gonna root but I checked to see if there was a software update and it says my phone is up to date? Isnt there a MF3 update That locks the bootloader? Also is my version able to be rooted?
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you're good to go on your s4, buddy. just be safe, read up and follow a guide if this is your first time around. cheers
hi,
I have an unlocked SGH-I337 with Android 4.2.2 I337UCUAMDL root and revocery,
if I upgrade to version 4.4.2, I lose the unlock??
thanks
Yes you will, if you want to be able to flash roms I recommend that you do not take the update
Sent from my Nexus 5
why not just run a 4.4.2 custom rom like
http://forum.xda-developers.com/showthread.php?t=2313469
it runs great for me--there are others also
nandroid first a usual in case a restore is needed--:good:
i prefer twrp 2.5.0.2 myself
caccolino said:
hi,
I have an unlocked SGH-I337 with Android 4.2.2 I337UCUAMDL root and revocery,
if I upgrade to version 4.4.2, I lose the unlock??
thanks
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You will not lose sim unlock however you will lose boot loader unlock. Just wanted to clarify that
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cnewsgrp said:
You will not lose sim unlock however you will lose boot loader unlock. Just wanted to clarify that
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It's good to know that I won't lose my SIM unlock, I had been worried that it would cause problems for the person I sold my s4 to, it's nice to know I didn't screw them over (T-Mobile user).
I'm planning on getting a AT&T Samsung Galaxy S4 SGH-I337. I've been looking through the android development thread and came across some some threads with TWRP and some other root methods. I heard that AT&T came out with a few new updates for the phone that effects some of the root methods and I don't know which one or if any. I know how to flash recoverys and ROMS through Odin, but I have no clue how to unlock the bootloader for the GS4. I also don't know any other methods of flashing recoverys or ROMS outside of Odin. BTW I plan on flashing cyanogenmod 11. I've only owned samsung phones. I'm new to this phone so I would appreciate any help.
Thanks
What's your baseband number.
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seedeh said:
What's your baseband number.
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I have no idea what baseband is lol
Setting>more>about device> baseband version
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---------- Post added at 09:39 PM ---------- Previous post was at 09:34 PM ----------
Oh wait I just saw you are planning to.
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seedeh said:
Setting>more>about device> baseband version
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In the post I said I was planning on getting the GS4. I don't have the phone yet so I don't know, but I wanted to know if I could do all of this because if I can't then I'll get a different phone.
iTzz_KAMIKAZE said:
I'm planning on getting a AT&T Samsung Galaxy S4 SGH-I337. I've been looking through the android development thread and came across some some threads with TWRP and some other root methods. I heard that AT&T came out with a few new updates for the phone that effects some of the root methods and I don't know which one or if any. I know how to flash recoverys and ROMS through Odin, but I have no clue how to unlock the bootloader for the GS4. I also don't know any other methods of flashing recoverys or ROMS outside of Odin. BTW I plan on flashing cyanogenmod 11. I've only owned samsung phones. I'm new to this phone so I would appreciate any help.
Thanks
Click to expand...
Click to collapse
There is no way to unlock the bootloader. If you're just getting the device it's going to come with mk2 or nb1 firmware. There is a root method for mk2 but there currently is not a root method for nb1. With that said, there is a way to use a rooted rom on nb1.
i would highly suggest you read up on mk2, safestrap, and nb1. Look in the general forum, start with the stickies and then about the first 10 threads in general.
Sent from my Nexus 5
No. Not currently. The s4 is currently not rootable and if you use the method to get back to MF3 you can't use TWRP only safestrap. Also, you can't unlock the bootloader in anything MK2+.
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No. Not currently. The s4 is currently not rootable and if you use the method to get back to MF3 you can't use TWRP only safestrap. Also, you can't unlock the bootloader in anything MK2+. <br />
<br />
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You can't get back to mf3 and the bootloader was never unlocked. There was just an exploit to get around the locked boot loader with firmware prior to mf3
Sent from my Nexus 5
I have a rooted att s4(sgh-I337) that has been updated to 4.4.2 Is it possible to downgrade to 4.2.2 or 4.3?
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Well if your ok with tripping the Knox flag it can be done. Otherwise no. I accidentally tripped mine trying to just this and now I can install whatever I want. Beware when I downgraded to 4.2.2 I got no WiFi and no sound. There are fixes but none seemed to work for me. Anyway updated back to 4.4 then rooted installed cwm and install tasks aokp 4.4.4. Running like a dream now
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Downgrade is not possible to any versions below KitKat on the sgh i337. The bootloader won't allow it being that its looked. If you try you can potentially brick your device. Best we can do as of now is root and safestrap recovery. Until the devs find an exploit to the bootloader The s5 face the same issues so if they find a fix there well most likely get the same workaround.
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---------- Post added at 10:37 PM ---------- Previous post was at 10:34 PM ----------
Psykologikal said:
Well if your ok with tripping the Knox flag it can be done. Otherwise no. I accidentally tripped mine trying to just this and now I can install whatever I want. Beware when I downgraded to 4.2.2 I got no WiFi and no sound. There are fixes but none seemed to work for me. Anyway updated back to 4.4 then rooted installed cwm and install tasks aokp 4.4.4. Running like a dream now
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How did you downgrade from KitKat without bricking. Last I checked the nc1 bootloader didnt permit that.
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androidfine16 said:
Downgrade is not possible to any versions below KitKat on the sgh i337. The bootloader won't allow it being that its looked. If you try you can potentially brick your device. Best we can do as of now is root and safestrap recovery. Until the devs find an exploit to the bootloader The s5 face the same issues so if they find a fix there well most likely get the same workaround.
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---------- Post added at 10:37 PM ---------- Previous post was at 10:34 PM ----------
How did you downgrade from KitKat without bricking. Last I checked the nc1 bootloader didnt permit that.
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+1
Magic? Honestly I'm not sure. Once the Knox flag was tripped Odin allowed the downgrade. Previously it would not. Still tho no WiFi and no sound unfortunately. Even when I installed custom Roms from cwm on 4.2 no WiFi and no sound. I believe it allowed me to flash the bootloader over but I'm not too sure. I will try again and report.
Was on ne1 4.4 stock and I have the Canadian edition i337m
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That is odd . try flashing a kit Kat ROM and see maybe thall fix sound
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Psykologikal said:
Magic? Honestly I'm not sure. Once the Knox flag was tripped Odin allowed the downgrade. Previously it would not. Still tho no WiFi and no sound unfortunately. Even when I installed custom Roms from cwm on 4.2 no WiFi and no sound. I believe it allowed me to flash the bootloader over but I'm not too sure. I will try again and report.
Was on ne1 4.4 stock and I have the Canadian edition i337m
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The Canadian version is not locked up tight like the US ATT one is. Different beast entirely. As I understand it, Knox tripped or not, no process exists to unlock the boot loader on our US ATT I337 phones.
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My bootloader is still locked. Prior to tripping the flag I was unable to downgrade as well.
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Do you guys know if they're making any progress in the bootloader attempt at unlocking ot
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I wish somebody can find how to unlock att gs4 bootloader faster
Marduc said:
I wish somebody can find how to unlock att gs4 bootloader faster
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Amen to that brother!
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Ok so you cant downgrade to 4.3 on the u.s. version. I can't use 4.3 roms while on 4.4.2 can I?
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Still no
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