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[Q] Warranty: How do I relock bootloader?

I have an HTC Sensation (no duh lol). I rooted it and custom rommed it, but I got a few scratches and want to use my warranty/insurance to get a replacement. I unrooted and went back to S-ON. The only problem is that my bootloader is still unlocked. How do I relock my bootloader? Is it necessary to relock it to use my "Premium Mobile Protection" to get a replacement? Thanks in advance.
I have an HTC Sensation (no duh lol). I rooted it and custom rommed it, but I got a few scratches and want to use my warranty/insurance to get a replacement. I unrooted and went back to S-ON. The only problem is that my bootloader is still unlocked. How do I relock my bootloader? Is it necessary to relock it to use my "Premium Mobile Protection" to get a replacement? Thanks in advance.
In short:
How do I
1) Relock the bootloader
and
2) Remove the "RELOCKED" and make it say "LOCKED"
?

By no means am I savvy on this topic, but I'm looking into it myself, because I need to relock my bootloader.
Take a look: http://forum.xda-developers.com/showthread.php?t=1077019
I'm guessing you better have to RUU that came with the phone running BEFORE you try to relock it.

It's pretty unlikely that they'll look at your bootloader. As long as your S-On and have reflashed the original firmware you should be good to go. If you really want a refurbished phone that bad you could just throw yours n the trash and say it was stolen. You're going to have to pay the deductible either way.

I had to return my phone last weekend for a warranty exchange.
I followed this guide http://theunlockr.com/2011/10/03/how-to-unroot-the-htc-sensation-4g/, and it worked perfectly to get my phone back to how it came in the Box (Except the cracked screen)

I will try this on my phone before I want to sell it

Does it work?
Gushfevah said:
I had to return my phone last weekend for a warranty exchange.
I followed this guide http://theunlockr.com/2011/10/03/how-to-unroot-the-htc-sensation-4g/, and it worked perfectly to get my phone back to how it came in the Box (Except the cracked screen)
Click to expand...
Click to collapse
Hey,
Can anyone confirm that the method posted by theunlockr actually reverts back the bootloader to ****LOCKED****?
Also, when I purchased the phone, it was running the stock Telstra GB Rom. With firmware version 1.17 I think. And at that point, the bootloader said nothing about it being locked or unlocked.
Thereby, I did the s-off, installed CWM recovery, permanently rooted and did SuperCID.
And then I flashed it with the stock EUR ICS ROM, which upgraded the firmware to 3.3something. and also locked the bootloader.
Is this normal?
I just want a way now through which I can flash ROMs and also lock the bootloader again (if I unlock it) if required for warranty purposes.
Thank you!

If you unlocked through htcdev unlock, you can only relock. You cant turn it to **LOCKED** again

[Q] Unlock bootloader on XT926 rooted after JB OTA update 9.30.1

I've successfully rooted my Droid RAZR MAXX HD with stock firmware version 9.30.1, but I can't seem to figure out how to unlock the bootloader.
The one catch with my phone being rooted is that it always ends up in fastboot when it boots. A simple
Code:
fastboot continue
fixes the problem, but I was wanting to flash CWM Recovery to install CM.
I have a working su/Superuser.apk, but I can't seem to fix the bootloader dilemma.

The last software version with an unlockable bootloader is 9.16.6.XT926. Sent from my Nexus 7 using xda app-developers app

Jhall8 said:
The last software version with an unlockable bootloader is 9.16.6.XT926. Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Okay... I also have another wonderful problem: my phone consistently gets into fastboot mode upon startup, with my current workaround of doing fastboot continue. Is there any way to fix my currently locked bootloader?

impinball said:
Okay... I also have another wonderful problem: my phone consistently gets into fastboot mode upon startup, with my current workaround of doing fastboot continue. Is there any way to fix my currently locked bootloader?
Click to expand...
Click to collapse
As Jhal said, you can't "fix" your bootloader, it's locked since you're on the newest OTA and it can't be unlocked. With that being said, your phone is not booting into fastboot because you're rooted. It's booting into FB because you tried to flash something that didn't work. What other things have you done or attempted to do, besides rooting? This will help us help you, the info you provided is pretty vague.

RikRong said:
As Jhal said, you can't "fix" your bootloader, it's locked since you're on the newest OTA and it can't be unlocked. With that being said, your phone is not booting into fastboot because you're rooted. It's booting into FB because you tried to flash something that didn't work. What other things have you done or attempted to do, besides rooting? This will help us help you, the info you provided is pretty vague.
Click to expand...
Click to collapse
I have done absolutely nothing beyond rooting it, installing Superuser & SuperSU (both through a script I can attach, but I'm on the wrong computer), and backed up a slew of apps.
This first begun when I modified the script to fix a bug in it (ash in JB 4.2 doesn't have a -f switch in rm, and the script had a 'rm -f'). If that bug didn't exist, then it would've still happened the first of several times (I attempted it about 4-5 times, but only the last caused this). The rm -f was actually doing effectively (with successful root privileges) 'rm -f /system/install-script-2.sh', but the script actually had another script to be put into it at the location /system/install-script.sh.

???
Start by detailing steps in your 2nd paragraph.
Your boot is locked if it was never unlocked before you upgraded to ...79 or later

what a coincidence i just got a xt926 and im at the same spot.. 9.30.1 rooted but locked ... iguess we're screwed huh

impinball said:
I've successfully rooted my Droid RAZR MAXX HD with stock firmware version 9.30.1, but I can't seem to figure out how to unlock the bootloader.
The one catch with my phone being rooted is that it always ends up in fastboot when it boots. A simple
Code:
fastboot continue
fixes the problem, but I was wanting to flash CWM Recovery to install CM.
I have a working su/Superuser.apk, but I can't seem to fix the bootloader dilemma.
Click to expand...
Click to collapse
Looks like you either flashed a fastboot or used a tool that used the command "fastboot oem fb_mode_set" which causes the phone to boot directly into fastboot mode. It can usually be fixed with the command "fastboot oem fb_mode_clear".

skeevydude said:
Looks like you either flashed a fastboot or used a tool that used the command "fastboot oem fb_mode_set" which causes the phone to boot directly into fastboot mode. It can usually be fixed with the command "fastboot oem fb_mode_clear".
Click to expand...
Click to collapse
Didn't work. It is still booting there on its own upon start-up.
Also, I will mention that I did commit an act of stupidity: trying to flash against a bootloader that I couldn't verify was unlocked yet. I stupidly ran the command when I wasn't even 50% sure that it was unlocked yet (and is likely the cause of all my problems):
Code:
fastboot flash recovery <cwm-file>.zip
I'm trying my hardest to avoid sending this to Motorola just for them to charge me for the replacement, saying I've voided any warranty that exists with the phone. I have the original firmware to flash just in case, but I don't have the Motorola fastboot (for the dev editions).

impinball said:
Didn't work. It is still booting there on its own upon start-up.
Also, I will mention that I did commit an act of stupidity: trying to flash against a bootloader that I couldn't verify was unlocked yet. I stupidly ran the command when I wasn't even 50% sure that it was unlocked yet (and is likely the cause of all my problems):
Code:
fastboot flash recovery <cwm-file>.zip
I'm trying my hardest to avoid sending this to Motorola just for them to charge me for the replacement, saying I've voided any warranty that exists with the phone. I have the original firmware to flash just in case, but I don't have the Motorola fastboot (for the dev editions).
Click to expand...
Click to collapse
First, there is no Dev Edition Fastboot....the closest would be Bell ICS since Bell shipped unlocked/unlockable Atrix HD's.
You don't flash zip files with fastboot flash.....Why is this becoming an issue these days?* The kernel is "fastboot flash boot boot.img"
*just thinking out loud
EDIT: Just realized that this was the RAZR HD forums.....just replying to quoted posts this morning....Not sure about RAZR HD Dev Edition fastboots....

Jhall8 said:
The last software version with an unlockable bootloader is 9.16.6.XT926. Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
The shame is, I never cared about unlocking the bootloader, as I prefer to stick to OTA's, but I do require root. So that's all I've ever done. I'm successfully rooted with the locked bootloader on 9.30.1, but it seems (at least as far as I've read on here) that I'm stuck there as I can't go anywhere else and maintain root. Would love kitkat, but root is essential.

Um, you can unlock the bootloader and still stick to OTAs.
Being able to root at any time and use custom recovery is reason enough for me.

killrhythm09 said:
Um, you can unlock the bootloader and still stick to OTAs.
Being able to root at any time and use custom recovery is reason enough for me.
Click to expand...
Click to collapse
I in no way implied I was AVOIDING unlocking due to the desire to stay on OTA's - just that I had no reason to pursue unlocking. This is the first android device I've had that ended up with a sunset where you couldn't unlock it at pretty much any point, so i never had a fear of taking the OTA and losing something in the process. If i had expected that, I certainly would have unlocked prior to 9.30.1 being installed. I honestly have yet to figure out why they don't release a program that would allow unlocking the devices - I'm not sure the manufacture's fear of unlocked bootloaders and root, as any program they release would be loaded with disclaimers - and frankly, it would allow easy restorations to ANY firmware version by service staff at verizon/at&t.

crazifuzzy said:
I in no way implied I was AVOIDING unlocking due to the desire to stay on OTA's - just that I had no reason to pursue unlocking. This is the first android device I've had that ended up with a sunset where you couldn't unlock it at pretty much any point, so i never had a fear of taking the OTA and losing something in the process. If i had expected that, I certainly would have unlocked prior to 9.30.1 being installed. I honestly have yet to figure out why they don't release a program that would allow unlocking the devices - I'm not sure the manufacture's fear of unlocked bootloaders and root, as any program they release would be loaded with disclaimers - and frankly, it would allow easy restorations to ANY firmware version by service staff at verizon/at&t.
Click to expand...
Click to collapse
Talk to Verizon. They're the ones preventing the bootloader from being unlocked.
Sent from my Nexus 7 using Tapatalk

iBolski said:
Talk to Verizon. They're the ones preventing the bootloader from being unlocked.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
This. It's no coincidence that the xt925 can be unlocked through Motorola. Carriers are always the problem here in the US.

crazifuzzy said:
I in no way implied I was AVOIDING unlocking due to the desire to stay on OTA's - just that I had no reason to pursue unlocking. This is the first android device I've had that ended up with a sunset where you couldn't unlock it at pretty much any point, so i never had a fear of taking the OTA and losing something in the process. If i had expected that, I certainly would have unlocked prior to 9.30.1 being installed. I honestly have yet to figure out why they don't release a program that would allow unlocking the devices - I'm not sure the manufacture's fear of unlocked bootloaders and root, as any program they release would be loaded with disclaimers - and frankly, it would allow easy restorations to ANY firmware version by service staff at verizon/at&t.
Click to expand...
Click to collapse
Well, in actual reality, the XT926 was never meant to be unlocked. It was only unlockable via an exploit, just like obtaining root for locked devices is an exploit in the security of the OS/device.
So, there never really was a "sunset" for unlocking this device as it wasn't meant to be. Only after the exploit was found did a patch come out to stop that exploit from being utilized on any remaining unlocked phones, current or future.
So, when there is an exploit to unlock a device, your best bet is to take advantage of it immediately.
When I got my RAZR HD, it was as a warranty replacement for my OG RAZR MAXX. When I fired it up, it stated there was an OTA available. I immediately told it no and then went straight to the forums here and on another site to investigate what my options were. When I found out that there was the possibility of my unlocking the bootloader, I immediately went to where the tool was and downloaded it. I then proceeded to read and then ask questions on if my phone couldn't unlock, would it hurt it. SamuriHL helped me out a great deal and that is how I found all his tools and how much help he provides. If it weren't for him, I wouldn't have discovered that I could unlock my bootloader.
Usually, I investigate the phone I'm interested in to see if:
1. Can the bootloader be unlocked (or is it already unlocked)?
2. Is there a known root exploit IF the bootloader cannot be unlocked?
3. What are the ROM options (safestrap, cwm, twrp recovery)?
It's definitely something I normally would look into, but I didn't know that I was going to receive the RAZR HD. Once I discovered the possibility of unlocking the bootloader, I was hoping beyond all hope that it could happen and it did. How I received a replacement phone that wasn't patched to the latest OTA was beyond me, but that is the reason I refused the OTA when I first fired up the phone. I had already read about other "horrors" of people taking an OTA and then finding they couldn't root or do other things with their phones.
Lesson learned is, NEVER take an OTA until you've fully researched what it does and what it might prevent.

Warranty with T-Mobile

So I have received a "Certified Pre-Owned" Nexus 5 from T-Mobile just a couple days ago. Within the first few hours, I rooted it. At this point I could no longer install (but still received) OTAs, and IIRC that is because the system partition has been altered. I eventually did unroot, but I still could not install OTAs. Now, there is a hardware issue with the phone: it will not vibrate properly anymore. And I have tried those solutions like pressing on the back. So will need to return this phone for a replacement or repair. I have read somewhere that T-Mobile runs a diagnostic tool to check the phone software. My phone is not rooted, and I have not unlocked it or altered the ROM in any way, but will T-Mobile know that my system partition is different? Am I still covered under warranty?

You could just flash the latest entire factory image and relock the bootloader - not sure how Tmobile would be able to tell anything different especially since the nexus 5 isn't a carrier locked device.

janjanrex said:
You could just flash the latest entire factory image and relock the bootloader - not sure how Tmobile would be able to tell anything different especially since the nexus 5 isn't a carrier locked device.
Click to expand...
Click to collapse
I don't plan to unlock my bootloader at all for a while. I unrooted with KingRoot, and now my phone is identical to stock except for a couple of files in the system partition that are traces of the root. I know this because OTA installations will result in an error. But that is the only thing that differs from a stock device. Will T-Mobile be able to access the system partition or somehow force an OTA upon it and find that it was once rooted? This is what I fear. What exactly does T-Mobile do when it receives the phone to make sure it had warranty?

Actually, what I would like to know for my peace of mind is...
Is there any way that T-Mobile can find out that I rooted?

janjanrex said:
You could just flash the latest entire factory image and relock the bootloader - not sure how Tmobile would be able to tell anything different especially since the nexus 5 isn't a carrier locked device.
Click to expand...
Click to collapse
I used the Nexus Root Toolkit to unlock, flash stock, unroot, lock, set tamper to false, etc. I can install OTAs now, and there is no way that I can think that my phone can be seen as altered. Just to confirm:
Is there any way now that T-Mobile will know that I did anything?

How to restore status code to 0 from status code 2

Plzzz help!!!!!!!!!!!!!!!!!!!!!!

you can't
K.V.K said:
Plzzz help!!!!!!!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
well my friend sry but you can't restore this code
most of devices like samsung,motorola etc they have.... lets say a key for the bootloader(is the door) and this key if you root your device
breaks and the half key stays inside the door hole to reminds you that the key is broken(the devicesis root/unlockbootloader).
so if you root any motorola device the code state goes
automatically 2 and stays like this,you can flash again the stock rom and relock the bootloader sure
but the code stays 2 for ever.
i hope to help you
moto g XT1541 stock rom 6.0.1 lockbootloader

bromoxitos said:
well my friend sry but you can't restore this code
most of devices like samsung,motorola etc they have.... lets say a key for the bootloader(is the door) and this key if you root your device
breaks and the half key stays inside the door hole to reminds you that the key is broken(the devicesis root/unlockbootloader).
so if you root any motorola device the code state goes
automatically 2 and stays like this,you can flash again the stock rom and relock the bootloader sure
but the code stays 2 for ever.
i hope to help you
moto g XT1541 stock rom 6.0.1 lockbootloader
Click to expand...
Click to collapse
I'm not exactly sure what you are saying, but I think the jist of it is how do you relock the bootloader... the answer is you cannot, once it is unlocked it will always report as unlocked, even if you reflash stock and find a way to relock the device.
When you unlocked your device, it was plainly stated in the disclosure on the website that once the bootloader is unlocked, it is irreversible.

yeap
acejavelin said:
I'm not exactly sure what you are saying, but I think the jist of it is how do you relock the bootloader... the answer is you cannot, once it is unlocked it will always report as unlocked, even if you reflash stock and find a way to relock the device.
When you unlocked your device, it was plainly stated in the disclosure on the website that once the bootloader is unlocked, it is irreversible.
Click to expand...
Click to collapse
YEAAA we say the same think,but i use an othey way to say it.
i say in the end you can relock the bootloader (more or less) when i say this i mean that you put some partitions back in boot loader
so when you flash the stock rom you can take any ota update,but the main bootloader is unlock always.
i know that form my old moto g2gen, moto x2013!!!

bromoxitos said:
YEAAA we say the same think,but i use an othey way to say it.
i say in the end you can relock the bootloader (more or less) when i say this i mean that you put some partitions back in boot loader
so when you flash the stock rom you can take any ota update,but the main bootloader is unlock always.
i know that form my old moto g2gen, moto x2013!!!
Click to expand...
Click to collapse
You could relock the bootloader on older Motos, but not anymore... Actually, it can be relocked but it will never report as locked or relocked, it will always be reported as unlocked. I don't how to be more plain in describing this.
And yes, you can take an OTA when unlocked, as long as you have a stock ROM and recovery and your bootloader is the correct version for your ROM. If your bootload and ROM are out of sync (ie. you have a Marshmallow bootloader and a Lollipop ROM), if your bootloader and ROM are out of sync, you could potentially get into a hard bricked situation.

ohh!!
acejavelin said:
You could relock the bootloader on older Motos, but not anymore... Actually, it can be relocked but it will never report as locked or relocked, it will always be reported as unlocked. I don't how to be more plain in describing this.
And yes, you can take an OTA when unlocked, as long as you have a stock ROM and recovery and your bootloader is the correct version for your ROM. If your bootload and ROM are out of sync (ie. you have a Marshmallow bootloader and a Lollipop ROM), if your bootloader and ROM are out of sync, you could potentially get into a hard bricked situation.
Click to expand...
Click to collapse
not any more? damn....yea we say the same think,sry for my english,yea i khow what you talking about i brick my moto x like this!!! any way.
ty for the new info about bootloader.
you was 100%
were you a clear,thanks a lot,and i hope to help him

Once I sent my hard bricked phone to Motorola. I had unlocked the bootloader and done the stupid mistake of sideloading an older version and upgrading to a newer, but still older version. When it came back, it said it was Status Code 0.
Wonder how they did it.

yagyaxt1068 said:
Once I sent my hard bricked phone to Motorola. I had unlocked the bootloader and done the stupid mistake of sideloading an older version and upgrading to a newer, but still older version. When it came back, it said it was Status Code 0.
Wonder how they did it.
Click to expand...
Click to collapse
They flash the eMMC chip (internal storage chip) directly... If you could get the right image you could possibly do it yourself with a few hundred to thousand dollar investment in a proper JTAG flashing unit.
Key would be getting the right Image, this would be far more than just a normal stock fastboot image, and is probably generated on the fly per device due to differences in serial number, IMEI, etc. These types of images don't get leaked out.

acejavelin said:
I'm not exactly sure what you are saying, but I think the jist of it is how do you relock the bootloader... the answer is you cannot, once it is unlocked it will always report as unlocked, even if you reflash stock and find a way to relock the device.
When you unlocked your device, it was plainly stated in the disclosure on the website that once the bootloader is unlocked, it is irreversible.
Click to expand...
Click to collapse
ok so what if you have never root unlocked, did nothing but use as intended to be.. never trying to do anything to it. wtf would i have a code 2 status then? care to sum that up for me.. cause 100% my situation.

wiytboi said:
ok so what if you have never root unlocked, did nothing but use as intended to be.. never trying to do anything to it. wtf would i have a code 2 status then? care to sum that up for me.. cause 100% my situation.
Click to expand...
Click to collapse
You unlocked the bootloader... It doesn't matter if you actually changed anything else or not. Once it's been done, this status code can never go back to 0. If the status code is 2 and you didn't unlock the bootloader, then someone else did.

acejavelin said:
You unlocked the bootloader... It doesn't matter if you actually changed anything else or not. Once it's been done, this status code can never go back to 0. If the status code is 2 and you didn't unlock the bootloader, then someone else did.
Click to expand...
Click to collapse
No I didn't.. I don't even know how to.. I just found out about recovery mode.. Wait wait before i say that.. How do you unlock boot loader? Turning developer mode on? Going to recovery menu? I've never hard reset it.. Just soft or doing new device. You said it could work fine for a while then shirt out? Like guy I bought from did and then I bought used for couple years and then went tits up?

wiytboi said:
No I didn't.. I don't even know how to.. I just found out about recovery mode.. Wait wait before i say that.. How do you unlock boot loader? Turning developer mode on? Going to recovery menu? I've never hard reset it.. Just soft or doing new device. You said it could work fine for a while then shirt out? Like guy I bought from did and then I bought used for couple years and then went tits up?
Click to expand...
Click to collapse
You unlock the bootloader with a series of steps that includes submitting a code to Motorola and getting an unlock code back... Performing it forces a factory reset as well. It's not something you can do by accident.
The issue with Status Code 2 was that an official update could have detected that and refused to update properly or done something worse... That never happened.
If everything is working fine, the status being 2 isn't important, it just means the previous owners had unlocked the bootloader and likely rooted or otherwise modified the phone.

Buying Verizon Pixel, have some questions

Hello guys.
I'm going to buy used and bootloader unlocked Verizon Pixel tomorrow and I'm interested in couple of things:
1. Can I flash all the ROMs that are available for Pixel on Verizon version too?
2. Can I properly install TWRP, root using Magisk, etc?
3. Can I properly flash (and downgrade if needed) official system images (and are they ever available for Verizon models?)
4. Can I take part in Android Beta program?
5. Is there anything I should be afraid of?
Thanks in advance.

Make sure it is bootloader unlocked, and not just SIM unlocked. There are not many VZ ones around that are bootloader unlocked. You need that to do the items on you list.

TonikJDK said:
Make sure it is bootloader unlocked, and not just SIM unlocked. There are not many VZ ones around that area bootloader unlocked. You need that to do the items on you list.
Click to expand...
Click to collapse
As I already stated, bootloader is already unlocked.

No one has an answer?

If it's bootloader u locked then yeah u can do all those things. Just do not ever for any reason ever relock the bootloader. Also I believe there have been a few cases where ppl have had semibricks or other issues which required locked stock to fix or somehow resulted in locked stock

I got a replacement about a month ago on my small Pixel and that one was unlocked. However, the one I got from Verizon in store did not have an unlocked bootloader. I'm not sure what the deal is, but maybe getting a replacement from an "accidental" break might do the trick. just to clarify, my first Pixels' usb port got completely fried and started to smell bad whenever it charged, and the phone would get really hot. I am now on 8.1 with an unlocked bootloader but have yet to actually root the phone

KittyRgnarok said:
If it's bootloader u locked then yeah u can do all those things. Just do not ever for any reason ever relock the bootloader. Also I believe there have been a few cases where ppl have had semibricks or other issues which required locked stock to fix or somehow resulted in locked stock
Click to expand...
Click to collapse
Thank you!

gb_14 said:
Thank you!
Click to expand...
Click to collapse
Np