Unlocking boot loader and root - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Sorry I am still a little confused. I want to install a custom rom. There is lots of rooting info but not much unlocking bootloader. Do I need to unlock bootloader to root? Do I need an unlocked boot loader to flash custom ROMs? Or do I need just root. Do i need to pull the sim card for rooting or unlocking?
I have a n7 that is rooted and unlocked easily. The sg3 is 3x$ so I am more cautious.
Did lots of searching and still unclear as to what is needed.
Thanks.
Edit: I have the i747m phone.
Sent from my Nexus 7 using XDA Premium HD app

The bootloader isn't locked on this device so you just need to root and install a custom recovery

Related

Question about root then update.

What i know about rooting is that in order for it to be appreciated, you must unlock the bootloader. The thing is, i havent updated my software yet to 2.3.4. My question is will rooting and unlocking bootloader affect if update comes into my location? This is the reason why im sticking to stock rom now.
Sent from my R800i using XDA App
You can root and ota while keeping root without unlocking bootloader using Gingerbread or the new zergrush exploit. Search the forums. If you want to install custom roms (cwm or cm7.1) and kernals (overclock) then you need to unlock. But will not be able to update ever unless you relock
Sent from my rooted R800a 2.3.3 BL locked

[Q] How to backup my stock rom

I just got my Arc S, and i want to check out few different custom roms. I was planing on rooting the device with Easy rooting toolkit, so the question is, how can i backup my stock rom and reflash it, if i ever need it for warranty issues? (Also maybe to get the official 4.0 update next year )
On my previous phone (HTC Desire) it was pretty easy, by restoring the Nandroid backup that i created after rooting the device. How about the Xperia? Is there something similar?
And while we are here, any suggestion for some stable custom roms for the Arc S? Thanks
If you only want to root your device, you can simply unroot the device.
But you don't really have to, when you update your device using PCC or SEUS, the root is gone.
http://forum.xda-developers.com/showthread.php?p=18879974#post18879974
If you decide to unlock your bootloader to flash custom kernels/ROMs, you have to relock it, when you want to update your firmware using PCC or SEUS.
http://forum.xda-developers.com/showthread.php?t=1134335
And which custom ROM you like is your decision, but I'm still a CM7 fan.
I have root, if I want to return to stock ROM (without root) I can just use SEUS to update my phone and the root is gone?
hdplsa said:
I have root, if I want to return to stock ROM (without root) I can just use SEUS to update my phone and the root is gone?
Click to expand...
Click to collapse
If your bootloader is locked yes.
I rooted my arc with EasyRooting toolkit,
How do I know if my bootloader is locked or not?
Edit: I checked by the service info, it says
Rooting status:
Bootloader unlock allowed: No
I am guessing that means my bootloader is locked?
Aiceball said:
I am guessing that means my bootloader is locked?
Click to expand...
Click to collapse
Yes, it is.
And if you root, it doesn't, mean you've a unlocked BL.
Btw, you can't unlock your BL using the official method.
If you still want to unlock your BL, contact Jinx13.

[Q] Unlocking with Cyanogenmod 10.1

I'll be going on a trip to China soon and I need to unlock my phone. I have tried unlocking my phone with the help of this post, but unfortunately it didn't work out. I read that I need to be using the stock rom for the unlock method to work.
My question is: if I unlocked my phone on the stock ROM and then restored to a backup with Clockworkmod, would my phone still be unlocked?
Also does anyone have a link to good stock based ROM that I can use to unlock my phone?
Any stock based Rom will do it, even the plain rooted stockones. And once it's unlocked, it stays that way until you relock it. Flashing a Rom shouldn't cause you to relock

[Q] [4.3] Root without unlocking bootloader?

I have a Galaxy Nexus running the official 4.3 JRW66Y ROM, and I want to flash the same version, still odexed, but rooted without having to unlock the bootloader. I'm not going to flash any custom ROM until a KitKat AOSP is released, so I don't need an unlocked bootloader, but I'd like to have root access. Is it possible?
The reason I don't want to unlock the bootloader is that I simply don't like that padlock icon there, so if I can unlock the bootloader without that padlock showing up as well, then that's fine with me...

Bootloader unlocked?

Hi Forum,
I am wondering if the bootloader is unlocked in the Samsung Galaxy S4 Mini ? I got it from a carrier. I want to install custom ROMS, but I heard that rooting doesn't let you install custom ROM's...that the thing that gets you to install custom ROMS is an unlocked bootloader. So does anybody know if it is unlocked ? And if the bootloader is locked, anybody know how to unlock it ? Any help would be greatly appreciated!
The bootloader is not locked.
Just flash the custom recovery (http://forum.xda-developers.com/showthread.php?t=2364980). Then you can flash any custom ROM in recovery.
Read all about triping KNOX, and if it's OK for you, go ahead.

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