Bootloader Status Check - Galaxy Note 3 Q&A, Help & Troubleshooting

How can we know if the bootloader is locked or not? Is there a way to know it through adb or through a secret code?

Uzair40 said:
How can we know if the bootloader is locked or not? Is there a way to know it through adb or through a secret code?
Click to expand...
Click to collapse
It's only "locked" on 900V and 900A (Verizon and AT&T) variants. Other variants are not locked nor lockable.

jisoo said:
It's only "locked" on 900V and 900A (Verizon and AT&T) variants. Other variants are not locked nor lockable.
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Click to collapse
Thanks, but without having that information how can we check if the bootloader is locked or not?

Uzair40 said:
Thanks, but without having that information how can we check if the bootloader is locked or not?
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Click to collapse
I thought I was clear, sorry.
If you have the Verizon or AT&T version, it is always locked. If other version, it is always unlocked.
There are no known ways of locking or unlocking the bootloader on a Samsung device.

jisoo said:
I thought I was clear, sorry.
If you have the Verizon or AT&T version, it is always locked. If other version, it is always unlocked.
There are no known ways of locking or unlocking the bootloader on a Samsung device.
Click to expand...
Click to collapse
Thanks again. I already know that besides Verizon and AT&T, all the versions have the bootloader unlocked, but is there a way to know that through adb or a secret code? i.e. If Knox is 0x1 we realise that the device has been rooted, likewise, is there a way to know if the bootloader is locked?

Uzair40 said:
Thanks again. I already know that besides Verizon and AT&T, all the versions have the bootloader unlocked, but is there a way to know that through adb or a secret code? i.e. If Knox is 0x1 we realise that the device has been rooted, likewise, is there a way to know if the bootloader is locked?
Click to expand...
Click to collapse
id like to know as well, id like to know through a app or adb or something in that nature let me know if you find out anything TY!
(i just bought a Galaxy Note 3 sim unlocked at&t 4.4.2 sm-n900a)
which i already rooted!

mrdreamers said:
id like to know as well, id like to know through a app or adb or something in that nature let me know if you find out anything TY!
(i just bought a Galaxy Note 3 sim unlocked at&t 4.4.2 sm-n900a)
which i already rooted!
Click to expand...
Click to collapse
Use your phones forum.
http://forum.xda-developers.com/note-3-att

JJEgan said:
Use your phones forum.
http://forum.xda-developers.com/note-3-att
Click to expand...
Click to collapse
i have its gotten me nothing so far

in retrospect
I just got my hands on one of these and I'm not sure if the bootloader is locked or not I did a procedure that leads me to believe it is. I am not 100% sure though, and since I am not really a noob, nor of a minor tech, I understand the importance of being 100% certain.

What is the model of the phone according to the phone's screen in download mode? What is the boot loader version?
These two items will help you determine whether the boot loader is locked.

All Canadian Note 3
jisoo said:
It's only "locked" on 900V and 900A (Verizon and AT&T) variants. Other variants are not locked nor lockable.
Click to expand...
Click to collapse
Does this "Unlocked bootloader" apply to all Canada versions of the SG Note 3 N900W8 as well? Thanks in advance.

Related

[Q] bootloader

Been reading about Bootloader and I think I grasp the concept... Does the s 4 (specifically gt i9505) come with locked bootloader? If yes, how can I check if my Bootloader is locked?
dannyella said:
Been reading about Bootloader and I think I grasp the concept... Does the s 4 (specifically gt i9505) come with locked bootloader? If yes, how can I check if my Bootloader is locked?
Click to expand...
Click to collapse
Go to download mode. If you see additional lines that say about KNOX that means it's probably locked.
If you got Android 4.2.2 or lower, you don't have locked bootloader.
As far as I know..
dannyella said:
Been reading about Bootloader and I think I grasp the concept... Does the s 4 (specifically gt i9505) come with locked bootloader? If yes, how can I check if my Bootloader is locked?
Click to expand...
Click to collapse
No.
It depends on where you got the phone.
Many carriers lock the bootloader to prevent customer's tweaking the device or changing the SIM lock.
However not all carriers do this.
Also factory unlocked and open bootloader phones are sold all over.
Now where did you get the device from and is it on contract or not ?
Sent from my GT-I9500 using Tapatalk

[Q] I can apply a stock rom sm g900f????

I can apply a stock rom sm g900f when the bootloader is unlock?
and at the same time change radio frequency?
sorry in advance for this newbie question
b9455 said:
I can apply a stock rom sm g900f when the bootloader is unlock?
and at the same time change radio frequency?
sorry in advance for this newbie question
Click to expand...
Click to collapse
Wrong forum, the G900F is the International variant and this forum is for SM-G900V, the Verizon variant.
You want this forum: http://forum.xda-developers.com/galaxy-s5/help
spuniun said:
Wrong forum, the G900F is the International variant and this forum is for SM-G900V, the Verizon variant.
You want this forum: http://forum.xda-developers.com/galaxy-s5/help
Click to expand...
Click to collapse
yes, but i have a g900v from Verizon and i am in europe
Sorry, why buy an SM-G900V when what you likely need is an SM-G900F?
kprice8 said:
Sorry, why buy an SM-G900V when what you likely need is an SM-G900F?
Click to expand...
Click to collapse
because I ran out cellphone in the states and a family member gave me without knowing that there were differences between these two.
and I would not say, no thanks, especially when we were going off to the airport
b9455 said:
yes, but i have a g900v from Verizon and i am in europe
Click to expand...
Click to collapse
So you're asking if you can flash the SM-G900F stock rom on a SM-G900V? Before even answering that question you would need un unlocked bootloader which is less than likely. And even if you had one, what you propose would more than likely result in a brick.
b9455 said:
because I ran out cellphone in the states and a family member gave me without knowing that there were differences between these two.
and I would not say, no thanks, especially when we were going off to the airport
Click to expand...
Click to collapse
Fair enough. You may have to wait for root to be able to modify then. Sorry for the inconvenience.
kprice8 said:
Fair enough. You may have to wait for root to be able to modify then. Sorry for the inconvenience.
Click to expand...
Click to collapse
but it is possible since the bootloader is unlocked, right?
I do not think wrong?
as long i get rooted the cellphone the chances of brick the phone are minor?
b9455 said:
but it is possible since the bootloader is unlocked, right?
I do not think wrong?
as long i get rooted the cellphone the chances of brick the phone are minor?
Click to expand...
Click to collapse
Verizon Bootloaders are NOT unlocked... I don't know where you found that, but Verizon has not offered these phones unlocked to my knowledge.
kprice8 said:
Verizon Bootloaders are NOT unlocked... I don't know where you found that, but Verizon has not offered these phones unlocked to my knowledge.
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Click to collapse
I know that.
what I said was "since the bootloader is unlocked" and "i get rooted the cellphone", meaning when there is a way to unlock the bootloader and root the phone.
Thank for yours replies.
b9455 said:
I can apply a stock rom sm g900f when the bootloader is unlock?
and at the same time change radio frequency?
sorry in advance for this newbie question
Click to expand...
Click to collapse
Not unless you want a $600 paper weight.
b9455 said:
I know that.
what I said was "since the bootloader is unlocked" and "i get rooted the cellphone", meaning when there is a way to unlock the bootloader and root the phone.
Thank for yours replies.
Click to expand...
Click to collapse
lol.. the answer is no. even if at some point in time we have root will b unlikely to get a unlocked bootloader and if you flash an international rom doesnt mean it will work.. you have a smartphone you can only use on wifi bud lol or sell to someone in america n buy one in europe where your at or buy the international version or wait for who knows how long
Sent from my SM-G900V using XDA Premium HD app

[Q] How to unlock a bootloader if possible? (N900A)

Heya, I'm very new in the vast world of Android rooting and flashing and I've run into yet another problem trying to flash my N900A Note 3 variant. I finally got it SIM unlocked and rooted and just when I'm getting ready to flash I see something about bootloaders. I don't know how to check to see if it's locked but I'm more than certain it is. So, is there anyway to unlock the bootloader? I see people saying it can't be unlocked yet I see guides for unlocking them so really all I'm looking for is a straight answer.
And if I understand it right, Safestrap isn't something I want to do if it's not the 'real' thing, so if it can't be unlocked then I'll be looking into another phone. If I do, would it be better to get another Note 3 variant or the Sony Xperia z1s?
Thanks in advance.
mr_solo1337 said:
Heya, I'm very new in the vast world of Android rooting and flashing and I've run into yet another problem trying to flash my N900A Note 3 variant. I finally got it SIM unlocked and rooted and just when I'm getting ready to flash I see something about bootloaders. I don't know how to check to see if it's locked but I'm more than certain it is. So, is there anyway to unlock the bootloader? I see people saying it can't be unlocked yet I see guides for unlocking them so really all I'm looking for is a straight answer.
And if I understand it right, Safestrap isn't something I want to do if it's not the 'real' thing, so if it can't be unlocked then I'll be looking into another phone. If I do, would it be better to get another Note 3 variant or the Sony Xperia z1s?
Thanks in advance.
Click to expand...
Click to collapse
AT&T models are locked at the bootloader, and there's no way to unlock them.
I have similar question....I have 9005 version and want to put new bootloader.....I put new NF2 modem and now i want to put NF4 bootloader....
Is it enough just to instal it through odin?
(Searched for instructions but couldn't find it.....)
Thanks....
jisoo said:
AT&T models are locked at the bootloader, and there's no way to unlock them.
Click to expand...
Click to collapse
Okay, I have a few questions on this subject.
Safestrap is a work-around a locked bootloader right? If I use it to flash a rom would there be that much of a difference?
If using safestrap pretty much the same thing then why do people still prefer to have unlocked bootloader?
Because I see guides to unlocking bootloaders, does this mean that it's just AT&T that won't let us unlock this phone version?
Sorry for the questions, I just want this stuff cleared up.
mr_solo1337 said:
Okay, I have a few questions on this subject.
Safestrap is a work-around a locked bootloader right? If I use it to flash a rom would there be that much of a difference?
If using safestrap pretty much the same thing then why do people still prefer to have unlocked bootloader?
Because I see guides to unlocking bootloaders, does this mean that it's just AT&T that won't let us unlock this phone version?
Sorry for the questions, I just want this stuff cleared up.
Click to expand...
Click to collapse
You can't change the kernel if your bootloader is locked, so safestrap only works with TW-based ROMs -- no cyanogenmod our other AOSP variants.
AT&T is one of the carriers that forces the OEMs to lock the bootloader. I believe Verizon is another one. No other carrier seems to care, or have enough power over the OEMs to force this.

Bootloader unlocking

What, precisely, must be done to unlock the bootloader for an SM-G900A or SM-G900T? Must something cryptographically be broken? If I get root access through towelroot, will that help? Are the people at the AT&T store capable of doing this bootloader unlock if pursuaded to do so?
No they will definitely not help you unlock the bootloader lol. AT&T locked it down themselves, and no one has found a way to unlock it yet. All we can do is wait for someone to figure it out.
dgriffi said:
What, precisely, must be done to unlock the bootloader for an SM-G900A or SM-G900T? Must something cryptographically be broken? If I get root access through towelroot, will that help? Are the people at the AT&T store capable of doing this bootloader unlock if pursuaded to do so?
Click to expand...
Click to collapse
Can you show what is your Bootloader version?
Just an FYI, 900A is ATT with locked bootloader, the 900T is T-mobile which already has an unlocked bootloader. Just buy a 900T unlock the Sim and put in an ATT Sim. That's what I did. No worries about locked bootloader!
vndnguyen said:
can you show what is your bootloader version?
Click to expand...
Click to collapse
g900aucu2ang3
dgriffi said:
g900aucu2ang3
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Click to collapse
I think a read something about Safestrap being able to unlock S5 locked bootloaders, here for example. Not sure if this works though, have not tested it myself.

New to Samsung Note Series

Recently I purchased a note 3 off ebay to use tell Im available for an upgrade. I'm not sure what software version is on it cause I haven't gotten it. Just have a few questions.
Is the only way you can root is in 4.4.2 ?
If the phone comes can't I downgrade from 5.0 to 4.4.4 and them to 4.4.2.
Please understand I'm new to Samsung so not sure it all works. Coming from all htc devices like DNA and one max.
Welcvome aboard
thayl0 said:
Recently I purchased a note 3 off ebay to use tell Im available for an upgrade. I'm not sure what software version is on it cause I haven't gotten it. Just have a few questions.
Is the only way you can root is in 4.4.2 ?
If the phone comes can't I downgrade from 5.0 to 4.4.4 and them to 4.4.2.
Please understand I'm new to Samsung so not sure it all works. Coming from all htc devices like DNA and one max.
Click to expand...
Click to collapse
no, you can root Lollipop as well.
there are ways to downgrade but you have to be careful...
Look out for threads in General section and work on the method specific to your model (about downgrade)
this is for N900 http://forum.xda-developers.com/galaxy-note-3/general/safe-to-downgrade-ll-to-kk-sm-n900-t3016966 :angel:
nijom said:
no, you can root Lollipop as well.
there are ways to downgrade but you have to be careful...
Look out for threads in General section and work on the method specific to your model (about downgrade)
this is for N900 http://forum.xda-developers.com/galaxy-note-3/general/safe-to-downgrade-ll-to-kk-sm-n900-t3016966 :angel:
Click to expand...
Click to collapse
Thank you for the quick reply is the n900 and n900v the same thing cause !my model coming is the n900v
Do you think I should try to root lollipop before I try to downgrade.
Wouldn't I follow this guide to root and install trwp n custom rom after.
https://youtu.be/eDHSXn5KwAw
thayl0 said:
Thank you for the quick reply is the n900 and n900v the same thing cause !my model coming is the n900v
Do you think I should try to root lollipop before I try to downgrade.
Wouldn't I follow this guide to root and install trwp n custom rom after.
https://youtu.be/eDHSXn5KwAw
Click to expand...
Click to collapse
Do not downgrade. Why would you do that?
No it is not the same, flashing other variants roms will brick yours. Or supersu twrp etc.
V is for Verizon
kenny1991 said:
Do not downgrade. Why would you do that?
No it is not the same, flashing other variants roms will brick yours. Or supersu twrp etc.
V is for Verizon
Click to expand...
Click to collapse
Could you please link me to an guide on n900V and how to root it on lollipop. Samsung and HTC devices are way different in how to do things and I don't want to screw up. Hopefully you understand.
thayl0 said:
Could you please link me to an guide on n900V and how to root it on lollipop. Samsung and HTC devices are way different in how to do things and I don't want to screw up. Hopefully you understand.
Click to expand...
Click to collapse
Verizon version is not rootable, nor does it accept custom recoveries. You better choose another variant, if that is important to you.
jisoo said:
Verizon version is not rootable, nor does it accept custom recoveries. You better choose another variant, if that is important to you.
Click to expand...
Click to collapse
Because it has locked bootloader, right?
So there is no way to unlock the bootloader like with Sonys? Like asking for unlock code from Verizon?
kenny1991 said:
Because it has locked bootloader, right?
So there is no way to unlock the bootloader like with Sonys? Like asking for unlock code from Verizon?
Click to expand...
Click to collapse
You are correct. Samsung phones all come bootloader unlocked, unless the carriers wants them locked (as was the case with Verizon and AT&T for the Note 4).
The locked versions have almost never successfully been unlocked.
So if you can, stay away from these two variants.
jisoo said:
You are correct. Samsung phones all come bootloader unlocked, unless the carriers wants them locked (as was the case with Verizon and AT&T for the Note 4).
The locked versions have almost never successfully been unlocked.
So if you can, stay away from these two variants.
Click to expand...
Click to collapse
Then why are people saying I can root it.... I do know the phone is coming networked unlocked. I find it crazy that if you can't unlock a verizon bootloader that there are roms that support verizon.
So what your telling me is there's no possible way to root even on stock so i can run xposed framework.?
thayl0 said:
Then why are people saying I can root it.... I do know the phone is coming networked unlocked. I find it crazy that if you can't unlock a verizon bootloader that there are roms that support verizon.
So what your telling me is there's no possible way to root even on stock so i can run xposed framework.?
Click to expand...
Click to collapse
Some firmware versions have vulnerabilities, which can be exploited to gain root/install safestrap. Some versions allow downgrading to vulnerable versions. But not all.
You should check the Verizon forums for more information http://forum.xda-developers.com/verizon-galaxy-note-3.
jisoo said:
Some firmware versions have vulnerabilities, which can be exploited to gain root/install safestrap. Some versions allow downgrading to vulnerable versions. But not all.
You should check the Verizon forums for more information http://forum.xda-developers.com/verizon-galaxy-note-3.
Click to expand...
Click to collapse
Will do. But say I buy a note 3 that either from Sprint or T-Mobile and install custom rom want I be able to use Verizon but only if I have a custom rom?
thayl0 said:
Will do. But say I buy a note 3 that either from Sprint or T-Mobile and install custom rom want I be able to use Verizon but only if I have a custom rom?
Click to expand...
Click to collapse
Sorry, I don't know much about the US carriers, so don't know how they interoperate.
thayl0 said:
Will do. But say I buy a note 3 that either from Sprint or T-Mobile and install custom rom want I be able to use Verizon but only if I have a custom rom?
Click to expand...
Click to collapse
No. Verizon uses CDMA and will not allow 3rd party phones on their network. T-Mobile uses GSM and will NOT work on Verizon network. Period. You MUST use a Verizon branded device on Verizon network.
Sent from my SM-N900T using Tapatalk
toastido said:
No. Verizon uses CDMA and will not allow 3rd party phones on their network. T-Mobile uses GSM and will NOT work on Verizon network. Period. You MUST use a Verizon branded device on Verizon network.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
Well, just got the phone in the mail and it seems that it came with 5.0 so I guess I'm outta luck for root. First phone I've ever had that I can't root. I'm sad aha

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