bootloader unlock questions - Verizon Galaxy S 5 Q&A, Help & Troubleshooting

I am curious as to what kind of methods can be used to unlock a bootloader. I must mention I am VERY grateful with hashcode's hard work in getting us safestrap. However I am still curious about the bootloader. Can it be unlocked by exploits or only by cracking the lock code?
(Missing the aosp life)

Watch this.
https://archive.org/details/ShmooCon2014_Arms_Race...Bootloaders

Thanks for sharing that video, Walter. Very insightful!
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Related

[Q] Any way to root w/o unlock?

Hi,
I'm not looking to unlock the bootloader, I just want root. I haven't seen any method that doesn't require unlock first.
Any idea how to do this?
Don't think you can. AFAIK that's the point of the lock, to prevent any changes. My nexus s won't allow anything without unlocking BL.
Sent from my Nexus S using xda app-developers app

Root nexus 4 without unlocking bootloader

Hi all,
I used to be a hard core iOS user and just boarded on android wagon with my nexus 4 version 4.2.1. I am still learning my ways around android coolness and stumbled upon apps like display control for nexus 4 or titanium backup etc which require root access.
Can I just root and install these apps or any other apps which needs root access without unlocking the boatloader (From what I have heard it will wipe phone and is only useful if there is a need to install custom roms...which I have no use for as of now..just root)
Thanks in advance.
Sent from my Nexus 4 using xda app-developers app
I'm pretty sure you need to unlock bootloader to root..
I recently rooted and was able to back up everything.. I dont think I lost anything when I restored my backup
You only need to unlock the boot loader if you are going to flash custom ROMs. Other you can leave it locked and just root it.
Sent from my Nexus 4 using xda app-developers app
The short answer is that you must unlock.
The long answer is that in theory you could achieve root without unlocking but in practice any other method is just too difficult.
No one is going to make the effort when backing up all your files, unlocking, then starting again with an empty phone, is about a million times easier.
Sent from my Nexus 4 using Tapatalk 2
Use a new app called carbon backup. No need for root. It backs up app data etc...
Sent from my Nexus 4 using xda app-developers app
Backup your apps + data (photos) with titanium backup, then copy the folder to your computer or sync with Dropbox. After unlocking bootloader (wipe) just copy /sync The folder back
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calanizzle said:
Backup your apps + data (photos) with titanium backup, then copy the folder to your computer or sync with Dropbox. After unlocking bootloader (wipe) just copy /sync The folder back
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Titanium requires root
Read this if you want to have root with a locked bootloader.
But you still have to unlock and lock
http://forum.xda-developers.com/showthread.php?t=2010312
Sent from my Nexus 4 using xda premium
I was under the same situation, but part of learning is breaking stuff.
I had to reinstall the stock rom in my phone twice in the first week, and lost all my settings in the process, I would just say that rooting is worth the process and the pain.
And carbon backup does not require root
I have unlocked and rooted my Nexus 7, and I plan to do the same with my Nexus 4, so I'll go ahead and ask the question here.
Once I unlock and root, could I, and should I relock the bootloader, and if so, will it wipe all data again, but leave it rooted? In other words, I want to root, but have heard that leaving the bootloader unlocked is a bad idea. If the response applies to both my 4 and 7, please advise.
wvcadle said:
I have unlocked and rooted my Nexus 7, and I plan to do the same with my Nexus 4, so I'll go ahead and ask the question here.
Once I unlock and root, could I, and should I relock the bootloader, and if so, will it wipe all data again, but leave it rooted? In other words, I want to root, but have heard that leaving the bootloader unlocked is a bad idea. If the response applies to both my 4 and 7, please advise.
Click to expand...
Click to collapse
Bootloader unlocked may void warranty.
Unlock bootloader. Root phone. Relock bootloader.
But when u install an OTA u have to do the same process again because
u lose root.
Unjustable said:
Bootloader unlocked may void warranty.
Unlock bootloader. Root phone. Relock bootloader.
But when u install an OTA u have to do the same process again because
u lose root.
Click to expand...
Click to collapse
If I unlocked, rooted, but didn't relock, will relocking wipe my tablet/phone again?
wvcadle said:
If I unlocked, rooted, but didn't relock, will relocking wipe my tablet/phone again?
Click to expand...
Click to collapse
I believe it's only when unlocking. But can't tell 100% sure
Thanks to all folks for taking the time to contribute here.
OK..so what I am hearing is that I can unlock the boot loader for root but that's not mandatory. Correct? Is not t advisable ?
Also will I lose ota updates if I
1) just root, no unlocking boot loader
2) root + unlocking boot loader
Again I have no idea on androids world of custom Roms and kernels
Sent from my Nexus 4 using xda app-developers app
anx.sap said:
Thanks to all folks for taking the time to contribute here.
OK..so what I am hearing is that I can unlock the boot loader for root but that's not mandatory. Correct? Is not t advisable ?
Also will I lose ota updates if I
1) just root, no unlocking boot loader
2) root + unlocking boot loader
Again I have no idea on androids world of custom Roms and kernels
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
You need to unlock bootloader to root. I don't believe there's an exploit for rooting with a locked bootloader for jellybean.
You won't lose ota if you unlock and/or root. Just make sure the phone is only rooted and no system files are modified
Flowed and Tapped from my Nexus
anx.sap said:
Hi all,
I used to be a hard core iOS user and just boarded on android wagon with my nexus 4 version 4.2.1. I am still learning my ways around android coolness and stumbled upon apps like display control for nexus 4 or titanium backup etc which require root access.
Can I just root and install these apps or any other apps which needs root access without unlocking the boatloader (From what I have heard it will wipe phone and is only useful if there is a need to install custom roms...which I have no use for as of now..just root)
Thanks in advance.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
You need to unlock the bootloader if you want to root. But you can side load apps (Not using Play Store) without rooting.
Unless the app requires root for the app to function correctly.
Thanks so much guys. I went ahead and unlocked the boatloader followed by root. I used the wugfresh toolkit and it was a cakewalk. I didnt install any custom recovery.
The only problem is dolphin browser beta has stopped working now. It was great before.
Also, should I re lock the boot loader...and how.
Sent from my Nexus 4 using xda app-developers app
I found the cause. The ad block plus app is no blocking the dolphin beta browser.
Sent from my Nexus 4 using xda app-developers app
You only need to re lock it if you return it for warranty. The stickies have many guides showing how.
Sent from my Nexus 4 using xda app-developers app
juicyjones said:
You only need to re lock it if you return it for warranty. The stickies have many guides showing how.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
+ back to stock first
Sent from my Nexus 4 using xda premium

[Q] [Q}XT907/Unlocked Using NV EDIT? CUSTOM ROM?

Well, I unlocked my phone thankfully to you wonderful people here on xda !. But I was wondering I like stock and all but I love some flavor in my life. I see that a gsm fix was posted in the dev section but I wasn't sure It applied to nv unlock.
So my question is. Can I flash a non 4.3 rom and still keep my unlock without returning to stock?
simple enough
Currently using at&t and getting H+
Thanks guys
Is your boot loader unlocked?
Sent from my XT907 using xda app-developers app

Bootloader

For the life of me I thought you could only install stock modified Roms until the boot loader was unlocked then you could install custom roms. But I see people installing custom Roms and the bootloader is still locked or am I missing something. Confused
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gentlemandroid17 said:
For the life of me I thought you could only install stock modified Roms until the boot loader was unlocked then you could install custom roms. But I see people installing custom Roms and the bootloader is still locked or am I missing something. Confused
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
It's the Loki that allows it.
Oaklands said:
It's the Loki that allows it.
Click to expand...
Click to collapse
Pardon the stupid question but What is loki
Nvm. Found the answer.
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gentlemandroid17 said:
Pardon the stupid question but What is loki
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Loki is what is used to help you root and basically let you bypass the boot loader so you can install the custom ROMS. It is probably a bit more technical than that but that is what it does in simple terms. You use this until the bootloader is actually unlocked.
I'm sure someone can chime in and give you a more technical answer. Research it.
Oaklands said:
Loki is what is used to help you root and basically let you bypass the boot loader so you can install the custom ROMS. It is probably a bit more technical than that but that is what it does in simple terms. You use this until the bootloader is actually unlocked.
I'm sure someone can chime in and give you a more technical answer. Research it.
Click to expand...
Click to collapse
From what I have read it only works on att, Verizon and Korean version. Guess I'm s*** outta luck.
Sent from my LG-D802 using XDA Premium 4 mobile app
Are you on TMo? Be patient. It will probably come. It is still early in the game.

Turbo 2 root

I know that the kingroot method doesn't work yet. I am wondering if anyone found a different method to root. My bootloader is unlocked through the developers options
OEM Unlocking in the Developer options doesn't unlock the bootloader on these phones. That option is mainly for Nexus phones.
We already have a root discussion thread
Sent from my XT1585 using XDA Premium 4 mobile app
So the OEM unlock bootloader doesn't do what it says?
Bill Idol said:
So the OEM unlock bootloader doesn't do what it says?
Click to expand...
Click to collapse
On Nexus phones, yes, on ours, no.
http://www.droid-life.com/2014/11/0...nable-oem-unlock-option-in-developer-options/

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