Queation about bootloaders - Samsung Galaxy S8+ Questions & Answers

Why are global s8/+ like my model SM-G855F enable to unlock the bootloader while the US are completly stuck with an locked bootloader?
Like why are there any diffirence between ua and the rest of the world?

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[Q] What is bootloader and do I need to unlock it?

I am completely clueless of what bootloader is and after some googling, I think that it's the locking of a phone's network to a specific company like verizon, at&t etc. But, here in India, we don't have such contracts, so do I need to unlock bootloader before rooting my phone? I previously had galaxy ace and there was no mention of bootloader even when I installed all sorts of custom roms.
nitish159 said:
I am completely clueless of what bootloader is and after some googling, I think that it's the locking of a phone's network to a specific company like verizon, at&t etc. But, here in India, we don't have such contracts, so do I need to unlock bootloader before rooting my phone? I previously had galaxy ace and there was no mention of bootloader even when I installed all sorts of custom roms.
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you just won't get root if your bootloader is locked
Unlock it for root, CWM, ROMs , etc
No, a bootloader doesn't do what you assumed, it just restricts your devices from any alteration by giving you limited access. Region locked or carrier lock is a different thing.
Thanks all, one more thing, if I unlock bootloader then can I get my warranty back?
nitish159 said:
Thanks all, one more thing, if I unlock bootloader then can I get my warranty back?
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NO, you won't. When you apply for the code on Motorola site you lose your warranty. Even if you somehow manage to trick them, Moto G will still show status code as 2 (meaning relocked) instead of 1 (locked) or 3 (unlocked). Anybody feel free to correct me if I'm wrong.

Idea for e5 tracfone bl unlocking

So yea I have an idea on bootloader unlocking the xt1920dl Tracfone model (nora_trac)
So my idea is to try bootloader unlock keys from other models (that you own bc I only have nora_trac)
And also I tried unlocking the bootloader with the code 611611 and it said it was successfull it factory reset the phone but it still says
Oem_locked so I think its actually unlocked but I have no way of testing it
Ok bye
did you figure it out because I have the same phone and same problom
same problem same phone where did you put the 611611 code in at?
There are no exploits or user-end mods capable of unlocking a Moto bootloader that is not officially supported for oem unlocking. If you have a Verizon, Cricket or TracFone branded Moto E5 variant, it's simply an exercise in futility to try unlocking the bootloader.

Unlock bootloader

P905V is from Verizon, and the software is customized to the provider. LTE version has a locked bootloader. TIs there a way to unlock it so that I can put on a custom ROM?
@mrdondada that's what I wrote @gixermann who wants the same.

How to unlock the bootloader on the A42 5G?

Alright I've managed to get the A42 5G into developer mode, and debug enabled. But the bootloader isn't unlockable within developer mode options.
How to unlock the bootloader?
Thanks!
OK appears that unlocking the bootloader on US versions of the Galaxy A42 are not available. (at least) Verizon doesn't provide the "unlock" command to the "oem" command, ie;
sudo fastboot oem unlock
The Volume+- and side key combination will only go as far as "download" mode. Using the Volume+ that should take you to the bootlock confirmation, does not (nothing happens).
So at this point, until, or unless someone comes up with some way to overcome these limitations. Those of us with the Samsung A42's will either need to trip KNOX brute forcing an image on the phone. Or live with a stock Galaxy A42. :-(
1. All North American Samsung models have been bootloader locked (and do not have the OEM unlock option) for years now.
2. You can't brute force a custom recovery or custom anything else with a locked bootloader
If you want an unlockable and rootable phone, don't buy a North American model - simple as that.
iBowToAndroid said:
1. All North American Samsung models have been bootloader locked (and do not have the OEM unlock option) for years now.
2. You can't brute force a custom recovery or custom anything else with a locked bootloader
If you want an unlockable and rootable phone, don't buy a North American model - simple as that.
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Necroposting, lets go. What if we just don't care about knox?
TheVideoEffect said:
Necroposting, lets go. What if we just don't care about knox?
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Re-read item #1 again when you're not so tired
iBowToAndroid said:
Re-read item #1 again when you're not so tired
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Yeah I posted that at 3 AM .-.

Whats the best US Galaxy S7 stock boot loader?

Need to pick up a few phones to play with. Since they all seem to have their own bootloaders (or do they?), should I go with Verizon, ATT, Sprint phone, or?
XDASikpupy said:
Need to pick up a few phones to play with. Since they all seem to have their own bootloaders (or do they?), should I go with Verizon, ATT, Sprint phone, or?
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Virtually all models of devices from the major US carriers are going to have locked bootloader with no way to unlock them. I suggest getting the devices directly from the manufacturer or buying international non branded devices because the majority of them have unlocked bootloader or bootloader that can at least be unlocked.
If a US phone is "unlocked", does that mean the bootloader is unlocked or just unlocked for carrier use? I also hear phones directly from Samsung are locked also.
XDASikpupy said:
If a US phone is "unlocked", does that mean the bootloader is unlocked or just unlocked for carrier use? I also hear phones directly from Samsung are locked also.
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When you buy a phone that says it is unlocked, yes, it is referring to the fact that it is SIM/carrier unlocked to be used on other carrier networks.
Unlocking bootloader is a very specific procedure in order to modify the device or add/remove pieces of system level software If you're looking to use custom recovery and custom ROMs, you will definitely need to make certain that it is a model that has the bootloader already unlocked or has a stock firmware version that has a bootloader that can successfully unlocked. Typically, the older the firmware version for a specific device model number is the safest bet, the later, newer updated firmware for that specific device model number tend to have locked bootloaders. And it gets worse as the devices get newer and more improved with security features and roadblocks.
A safe bet is a Non US Google Pxel device, they are all very well supported here. Regardless of the device in question, you don't ever want anything that Verizon has to offer, period. AT&T and Sprint are just as bad.
Droidriven - Thanks for the info, thats what I have been reading, and, what makes me wonder. If I can get unlocked phones with locked bootloaders, and I am not going to mess with he bootloader, is there one "locked" bootloader better than the other?

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