How to relock bootloader? - Google Pixel XL Questions & Answers

Having some problems with my phone and want to return it to stock. How do I lock the bootloader without risking bricking my phone?

The steps are somewhere in here. Though you may want to think twice if you have a Verizon edition.

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Locked Bootloader?

Does the Desire have a locked bootloader like the nexus one?
If so, is there a way (regardless of legality) to re-lock the phone?
Mainly if there's a hardware problem, or if someone wanted to sell the phone.
The way I see it, if you unlock it and have some fun, but then flash the original rom and re-lock it, no harm no foul.
topdnbass said:
Does the Desire have a locked bootloader like the nexus one?
If so, is there a way (regardless of legality) to re-lock the phone?
Mainly if there's a hardware problem, or if someone wanted to sell the phone.
The way I see it, if you unlock it and have some fun, but then flash the original rom and re-lock it, no harm no foul.
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I read that no one knows how to lock the new boot loader yet.
1) there us no known way to unlock the desire bootloader to allow rooting at this time
2) even if there was without an SPL exploit (we dont have atm) we cant relock
I see.
So nobody has tried to flash a nexus-compatible SPL yet?
I'd assume that it would work without a hitch.
Is there such a SPL exploit for the nexus? If so, we could deduce that one will come around for the desire eventually.

Root question

From day 1 i wanted to root my nexus, i haven't just encase bugs and stuff. Is root worth risking warranty right now?
You can always flash back to stock and lock the bootloader if rooting didn't appeal to you.
dtokarz said:
You can always flash back to stock and lock the bootloader if rooting didn't appeal to you.
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What he said.
Also, rooting and adding ROMs can fix any potential bugs that your phone might have.
And, the sooner you unlock your bootloader, in order to root, the better because unlocking the bootloader erases all your memory. After that, you can back up everything and its all good.
I heard apple has a way to check if you ever jail broke something, it's a possibility that android phones have that too right? Sooooo just locking the bootloader and taking to stock might not get you a new phone right? Or have people not had any problems about returning a previously rooted phone?
if you unlock the bootloader there will be an unlock icon on the splash screen.
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i dont think they can see if you rooted your phone. but if you unroot, and lock the bootloader, you will be fine.

Hoe to unlock bootloader and root?

This is my first time to use htc phone. I am not understand the bootloader. How can I unlock it and root the phone?
t2950486 said:
This is my first time to use htc phone. I am not understand the bootloader. How can I unlock it and root the phone?
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Currently you can only do this via HTC see here. However, it will void some aspect of your warranty if later on you need to send it back for repair, as HTC keeps a record of the phone have been unlocked by them.
I'm waiting until some clever developers come up with another way so we can unlock it without going through HTC.
Check the sticky in the Development thread, there are already "How to" guides posted.
http://forum.xda-developers.com/showthread.php?t=1556771
Although as Bigmille says, if you use the HTCdevelopers.com official method to unlock the bootloader, it's possible it may void your warranty, if HTC claim that any fault is caused by you loading unofficial software onto your phone. You should be fine for strictly hardware issues, though - as long as they can't claim they were caused by any software you loaded.
The official bootloader unlock leaves traces behind, so even if you re-lock your phone before returning it, they will know that you have unlocked it.
I'm hoping that we will have unofficial S-Off methods soon, so we can return the phone to factory state without the warranty being affected.
If I want to root, I need to unlock bootloader. But we should wait for the other S-OFF method, not use the HTCdevelopers.com official method. Is it right?
The choice is yours, really. Not sure if I'll wait or not, but for now I'm giving myself a few days with the phone before I decide, just to make sure I want to keep it. Though I think I will.
And I'm not sure how long I'll be able to wait before I root.

is unlocking bootloader a must?

I purchase a 1+3 a week ago. I have everything setup has i wanne but my concern if the phone goes into bootloop or something goes wrong. Would u think im ok woth a locm bootloader or unlock bootloader is a must
Unlocking bootloader is only necessary if you want/need root and other modifications. If you're satisfied with the phone in its current state and only plan to use official ROMs, you don't need to unlock it.
Bootloops an similar issues are very rare on unmodified devices, no need to worry about this.
Besides, you can always factory reset or sideload stock ROM even with locked bootloader and stock recovery.
Sent from my OnePlus 3 using Tapatalk

Does relocking the bootloader get rid of the warning screen on boot?

I am asking because I'm interested in rooting this phone... But I am afraid that my phone will be forever stuck with a warning screen (similar to attached pic) that i cannot get rid of.. this would be troublesome if i do want to sell it...
if you have unlocked, and then relocked bootloader (with all stock images etc..) please tell me if any warnings remain,... thanks!
It'll go away once you relock the bootloader
Sent from my Pixel 3 XL using Tapatalk
Yes relocking the bootloader will prevent that warning from showing. Just be certain the device is 100% bone stock before locking the bootloader or you could risk being bricked.
fury683 said:
Yes relocking the bootloader will prevent that warning from showing. Just be certain the device is 100% bone stock before locking the bootloader or you could risk being bricked.
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Risk? Its a for sure thing. Do NOT lock on any kind of custom ROM or any modifications. You need to be 100% stock before locking again or you will brick and not be able to recover
PhantomSoul said:
I am asking because I'm interested in rooting this phone... But I am afraid that my phone will be forever stuck with a warning screen (similar to attached pic) that i cannot get rid of.. this would be troublesome if i do want to sell it...if you have unlocked, and then relocked bootloader (with all stock images etc..) please tell me if any warnings remain,... thanks!
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Click to collapse
Even if you never root your phone, leaving your bootloader unlocked greatly increases your chances of recovering your phone from a no-boot situation because you can flash a complete factory image, rewriting the bootloader. If/when you ever decide to sell, you're going to want to wipe the entire phone anyway, and you can worry about it then. TBH, I don't even notice the warning anymore.

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