Hi. I'd like to know if there's any way I can relock my bootloader, after getting it unlocked, so that I can trick them and get my warranty back.
As far as I understand the unlocking and relocking procedure, they will still see that the fuses have been messed with. A relocked fuse value is not the same as the locked factory one.
Adam77Root said:
As far as I understand the unlocking and relocking procedure, they will still see that the fuses have been messed with. A relocked fuse value is not the same as the locked factory one.
Click to expand...
Click to collapse
So... there's no way I can trick them, right?
amkirk94 said:
So... there's no way I can trick them, right?
Click to expand...
Click to collapse
If they just test the bootloader status with the secret code, they will probably see locked. If they do the same in oem-unlock mode, it will very likely be the same. But if they read odm_reserved, they see it has been messed with.
You should wait for somebody else to answer too. I don't own the device yet and do neither know about the internal workings of the lock status test app using the secret code nor the oem-unlock code checking mechanism. It could be possible that these also know about relocking and display that status instead of 'locked'.
It would also be good to know if there are any devices that come with relocked (i.e. next iteration checking fuses) bootloader [Bgby default[/B] from factory. If there was any, we could be sure that they won't notice that you unlocked and relocked.
ok, thanks for the help. I'll wait for more replies.
Related
Hello,
My Z3C has bootloader unlock allowed: no.
Is there any problem if I try to unlock it anyway?
Thanks!
BenjaGM said:
Hello,
My Z3C has bootloader unlock allowed: no.
Is there any problem if I try to unlock it anyway?
Thanks!
Click to expand...
Click to collapse
No there is no problem, you probably won't be able to unlock it and that will be it.
Of course just remember that unlocking your bootloader will permanently disable some DRM-protected features.
The way around that is just to use the root exploit and backup the TA partition (good guide here).
If it say unlock allowed no, there is no way to unlock it so no point trying. But no trying won't do any harm, it's just pointless.
Some people were reporting that after sending in their phone for some hardware issues the phone they got back (the same one) had changed to booloader unlock allow yes. So this could be your last resort if you are lucky and willing to wait a bit it might work. Just make up some hardware issue like random crashes, rebooting or something.
And save your TA partition if you do that so maybe someone in this forum can spot the changes of before vs afterwards which would point in the direction what actually changes.
Hi!
Today I updated my Nexus 6 to 5.1 and something is went wrong...
When i try to boot my device into android, i Can't because its shows a dead android with a red triangle
(this is the screen where i can go into the recovery menu by pressing power on+ vol up)
i tried to flash the rom again, but the bootloader is locked because i relocked it after the 5.1 rom flash..
and i cant unlock it again because i cant boot into android to check the OEM unlock box.
i also tried wipe data, factory reset option in the recovery menu... thanks a lot for any suggestions
(sorry for my english)
Welcome to the club!
necroside007 said:
Hi!
Today I updated my Nexus 6 to 5.1 and something is went wrong...
When i try to boot my device into android, i Can't because its shows a dead android with a red triangle
(this is the screen where i can go into the recovery menu by pressing power on+ vol up)
i tried to flash the rom again, but the bootloader is locked because i relocked it after the 5.1 rom flash..
and i cant unlock it again because i cant boot into android to check the OEM unlock box.
i also tried wipe data, factory reset option in the recovery menu... thanks a lot for any suggestions
(sorry for my english)
Click to expand...
Click to collapse
Why in the world would you relock the bootloader? Against commonsense it would seem. Also, there are threads on here dealing with the update and warning against relocking the boot loader. Those threads also describe efforts to recover from the situation.
wtherrell said:
Why in the world would you relock the bootloader? Against commonsense it would seem. Also, there are threads on here dealing with the update and warning against relocking the boot loader. Those threads also describe efforts to recover from the situation.
Click to expand...
Click to collapse
I haven't seen anyone warning against relocking the bootloader - in fact, I see many instruction sets where relocking the bootloader is the final step, before the first reboot. Most are for returning to stock. Go ahead and use your hindsight though, you sound so smart.
And yeah, there are plenty of efforts to recover from the situation, but I'm yet to see anyone do so successfully.
necroside007 said:
Hi!
Today I updated my Nexus 6 to 5.1 and something is went wrong...
When i try to boot my device into android, i Can't because its shows a dead android with a red triangle
(this is the screen where i can go into the recovery menu by pressing power on+ vol up)
i tried to flash the rom again, but the bootloader is locked because i relocked it after the 5.1 rom flash..
and i cant unlock it again because i cant boot into android to check the OEM unlock box.
i also tried wipe data, factory reset option in the recovery menu... thanks a lot for any suggestions
(sorry for my english)
Click to expand...
Click to collapse
freeman_g said:
Welcome to the club!
Click to expand...
Click to collapse
AndrewZorn said:
I haven't seen anyone warning against relocking the bootloader - in fact, I see many instruction sets where relocking the bootloader is the final step, before the first reboot. Most are for returning to stock. Go ahead and use your hindsight though, you sound so smart.
And yeah, there are plenty of efforts to recover from the situation, but I'm yet to see anyone do so successfully.
Click to expand...
Click to collapse
If you want to update to the newest OTA you dont need to lock the bootloader back up. The bootloader can remained unlocked when doing this. Its been posted all over XDA about not having to do this. The only time you may want to relock the bootloader is when selling it to someone or trading it in. Thats it.
AndrewZorn said:
I haven't seen anyone warning against relocking the bootloader - in fact, I see many instruction sets where relocking the bootloader is the final step, before the first reboot. Most are for returning to stock. Go ahead and use your hindsight though, you sound so smart.
And yeah, there are plenty of efforts to recover from the situation, but I'm yet to see anyone do so successfully.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=3053497.
Well...I'm not browsing the XDA every day, i only come here for solutions for my problems....
wtherrell said:
http://forum.xda-developers.com/showthread.php?t=3053497.
Click to expand...
Click to collapse
Yeah, posted this morning. What a warning to everyone who did this before.
And saying not to do something that plenty of people want to do (like, returning to stock) isn't very significant.
necroside007 said:
Well...I'm not browsing the XDA every day, i only come here for solutions for my problems....
Click to expand...
Click to collapse
well not to come off rude but number one rule for xda before u post is search, and as you can tell there are multiple threads on this exact same topic.
---------- Post added at 10:56 AM ---------- Previous post was at 10:51 AM ----------
AndrewZorn said:
Yeah, posted this morning. What a warning to everyone who did this before.
And saying not to do something that plenty of people want to do (like, returning to stock) isn't very significant.
Click to expand...
Click to collapse
returning to stock and relocking the bootloader dont go together. You can return to stock and not lock the bootloader. Locking the bootloader has nothing to do with returning a device back to stock. It returns the device back to factory state if u lock it back up. Locking the device back up only should be used for selling the device, or returning the device for repairs. not for taking a ota.
the_rooter said:
Locking the bootloader has nothing to do with returning a device back to stock. It returns the device back to factory state if u lock it back up. Locking the device back up only should be used for selling the device, or returning the device for repairs. not for taking a ota.
Click to expand...
Click to collapse
Unless I want a secure device.
Unless I worry about warranty/resale in case my device is no longer operable (ie, broken screen, port, or buttons).
Unless I want my device to be stock - actually stock - as sold - which is LOCKED. You're telling me and others there's no downside to an unlocked bootloader. Well, that's wrong, and some people want a locked bootloader.
AndrewZorn said:
Unless I want a secure device.
Unless I worry about warranty/resale in case my device is no longer operable (ie, broken screen, port, or buttons).
Unless I want my device to be stock - actually stock - as sold - which is LOCKED. You're telling me and others there's no downside to an unlocked bootloader. Well, that's wrong, and some people want a locked bootloader.
Click to expand...
Click to collapse
There is no downside to a unlocked bootloader. If i remember correctly a locked bootloader is only for oem to protect for warranty issues nothing to do with security that your describing. A locked bootloader or unlocked bootloader tells the oem that this device was unlocked or locked and will tell the consumer (us) that the warranty was void. Number one rule when taking a device back to OEM for repair is return to stock and lock device like I stated above. Security issues has nothing to do with the bootloader. From my understanding its just for the OEM warranty purposes Only!
Edit: what u described above is the same thing I described. Only need to lock device back up for warranty purposes or reselling. Thats it.
AndrewZorn said:
Unless I want a secure device.
Unless I worry about warranty/resale in case my device is no longer operable (ie, broken screen, port, or buttons).
Unless I want my device to be stock - actually stock - as sold - which is LOCKED. You're telling me and others there's no downside to an unlocked bootloader. Well, that's wrong, and some people want a locked bootloader.
Click to expand...
Click to collapse
I posted the warning because people are not being careful. They are locking the bootloader without even checking it works. I've edited the post to say that. But if you're the sort of person that will be flashiogn a lot, a locked bootloader is not a good thing to have now because if you break recovery and cannot boot your device, you are at present - completely screwed. If you want to be stock, that shouldn't be an issue. Just be careful is all we're saying. ...and I cannot help it if my warning comes after some people have made this mistake. If no one made the mistake, I wouldn't have needed to post a warning. Can of peanuts "May contain nuts"... You know, because you know someone somewhere who was allergic to nuts, ate the nuts.
rootSU said:
I posted the warning because people are not being careful. They are locking the bootloader without even checking it works. I've edited the post to say that. But if you're the sort of person that will be flashiogn a lot, a locked bootloader is not a good thing to have now because if you break recovery and cannot boot your device, you are at present - completely screwed. If you want to be stock, that shouldn't be an issue. Just be careful is all we're saying. ...and I cannot help it if my warning comes after some people have made this mistake. If no one made the mistake, I wouldn't have needed to post a warning. Can of peanuts "May contain nuts"... You know, because you know someone somewhere who was allergic to nuts, ate the nuts.
Click to expand...
Click to collapse
I have nothing against your warning - I'm glad it's there. I was replying to the other guy, saying your the existence of your warning doesn't make everyone with this problem an idiot.
Locking the bootloader without even checking it works - again - I don't often see the "reboot to make sure it works!" step before the final fastboot oem lock. Maybe I've only been reading the lousy guides.
the_rooter said:
There is no downside to a unlocked bootloader. If i remember correctly a locked bootloader is only for oem to protect for warranty issues nothing to do with security that your describing. A locked bootloader or unlocked bootloader tells the oem that this device was unlocked or locked and will tell the consumer (us) that the warranty was void. Number one rule when taking a device back to OEM for repair is return to stock and lock device like I stated above. Security issues has nothing to do with the bootloader. From my understanding its just for the OEM warranty purposes Only!
Edit: what u described above is the same thing I described. Only need to lock device back up for warranty purposes or reselling. Thats it.
Click to expand...
Click to collapse
I thought that an unlocked bootloader allowed someone without 'normal' access to the files on your phone. That's why the bootloader lock/unlock wipes the device.
You're still completely missing my point with the warranty thing. Suppose my phone's unlocked and my screen breaks. Or my USB port stops working. That big unlocked logo under the Google is going to make getting a replacement really difficult.
By saying there's NO downside to unlocking the bootloader for daily use is absurd. I wanted to go back to as-shipped state for daily use, and locked bootloader is part of that. That's a reasonable goal. I don't care if there's something about the bootloader unlocked that you find valuable. I got tired of the tinkering and decided I just wanted my Nexus 6 to be back the way it was - completely.
AndrewZorn said:
I have nothing against your warning - I'm glad it's there. I was replying to the other guy, saying your the existence of your warning doesn't make everyone with this problem an idiot.
Locking the bootloader without even checking it works - again - I don't often see the "reboot to make sure it works!" step before the final fastboot oem lock. Maybe I've only been reading the lousy guides.
Click to expand...
Click to collapse
If guides don't say that at the moment, they definitely should now. I'll look at ours here and ask the OP's to update.
AndrewZorn said:
I have nothing against your warning - I'm glad it's there. I was replying to the other guy, saying your the existence of your warning doesn't make everyone with this problem an idiot.
Locking the bootloader without even checking it works - again - I don't often see the "reboot to make sure it works!" step before the final fastboot oem lock. Maybe I've only been reading the lousy guides.
I thought that an unlocked bootloader allowed someone without 'normal' access to the files on your phone. That's why the bootloader lock/unlock wipes the device.
You're still completely missing my point with the warranty thing. Suppose my phone's unlocked and my screen breaks. Or my USB port stops working. That big unlocked logo under the Google is going to make getting a replacement really difficult.
By saying there's NO downside to unlocking the bootloader for daily use is absurd. I wanted to go back to as-shipped state for daily use, and locked bootloader is part of that. That's a reasonable goal.
Click to expand...
Click to collapse
Root access is for the special files. and also i had the same issues u mentioned above and i always found a way to return a device to stock.
1) broken screen- repaired myself
2) broken usb port - repaired myself
I only take in for warranties if it has to do with something that I cant fix myself. This is a risk that all users take in this hobby.
the_rooter said:
Root access is for the special files. and also i had the same issues u mentioned above and i always found a way to return a device to stock.
1) broken screen- repaired myself
2) broken usb port - repaired myself
I only take in for warranties if it has to do with something that I cant fix myself. This is a risk that all users take in this hobby.
Click to expand...
Click to collapse
Alright, so how do I return mine to stock?
Your self-repair solutions are laughable. You're completely missing the point. I'm done arguing this.
AndrewZorn said:
Alright, so how do I return mine to stock?
Your self-repair solutions are laughable. You're completely missing the point. I'm done arguing this.
Click to expand...
Click to collapse
its not laughable. unless u buy an extended warranty the warranty is up after a year so you would have to figure the work yourself. If you are in the boat where u locked it back up and took the ota and bootlooping or whatever. your stuck till there is a solution. if u want to return to stock . Just return to stock but dont lock the bootloader back up, and flash. its that simple.
Edit: we are not arguing. Its just i have my way on repairs and you have yours. its a debate i guess
Edit: this issue has been brought up and is being researched. i was talking about the returning to stock for repairs dont try and put words in my mouth saying i know a fix.
Hey Folks,
I was curious to know if you have unlocked your bootloader, and then locked it again via fastboot oem lock command, if you wanted to unlock the bootloader maybe in the distant future again, would you need to use the same unlock key that was given to you by moto?
Thanks!
alternetconcept said:
Hey Folks,
I was curious to know if you have unlocked your bootloader, and then locked it again via fastboot oem lock command, if you wanted to unlock the bootloader maybe in the distant future again, would you need to use the same unlock key that was given to you by moto?
Thanks!
Click to expand...
Click to collapse
Yes the one you got in your mail.
Take care not to lose it.
I am not sure if they give it again
adity said:
Yes the one you got in your mail.
Take care not to lose it.
I am not sure if they give it again
Click to expand...
Click to collapse
Ah okay great.
Thank you!
I've unlocked my bootloader but have never once considered relocking it. Why would you lock it after unlocking it in the first place? I can't think of a single benefit.
nhizzat said:
I've unlocked my bootloader but have never once considered relocking it. Why would you lock it after unlocking it in the first place? I can't think of a single benefit.
Click to expand...
Click to collapse
I've seen some people claim they want to be as "close to stock as possible" when selling their phone. Unfortunately it doesn't really make a difference.
There are 3 states for the 2013 Moto X bootloader:
LOCKED Status:0
Unlocked Status:3
Locked Status:2
note: Status 2 is also known as relocked.
As users we can toggle it to either Status 2 or Status 3, but we can never set it back to Status 0. On Status 2 or 3, you'll get the Bootloader Unlocked warning message at reboot (where replacing the LOGO.BIN with custom one will hide the message).
alternetconcept said:
Hey Folks,
I was curious to know if you have unlocked your bootloader, and then locked it again via fastboot oem lock command, if you wanted to unlock the bootloader maybe in the distant future again, would you need to use the same unlock key that was given to you by moto?
Thanks!
Click to expand...
Click to collapse
Have you managed to lock it?
alexhdkn said:
Have you managed to lock it?
Click to expand...
Click to collapse
I didn't actually. I just tried right now but got the following message.
(bootloader) FAIL: Please run fastboot oem lock begin first!
The reason I wanted to re-lock it was for purposes of my phone getting stolen. I'm assuming if it was relocked, the person wouldn't get the joy of installing a custom recovery.
Yeah kind of silly. In any case, couldn't get it to lock.
alternetconcept said:
I didn't actually. I just tried right now but got the following message.
(bootloader) FAIL: Please run fastboot oem lock begin first!
The reason I wanted to re-lock it was for purposes of my phone getting stolen. I'm assuming if it was relocked, the person wouldn't get the joy of installing a custom recovery.
Yeah kind of silly. In any case, couldn't get it to lock.
Click to expand...
Click to collapse
There is a process to re-lock which involves flashing the stock rom first, etc. and it does wipe the phone.
So if you re-lock, you'll also lose root. (at least until you unlock, flash custom recovery and root).
KidJoe said:
There is a process to re-lock which involves flashing the stock rom first, etc. and it does wipe the phone.
So if you re-lock, you'll also lose root. (at least until you unlock, flash custom recovery and root).
Click to expand...
Click to collapse
Yeah. I think I realized that I would need to wipe my phone again to re-lock it. I turned it back to stock so I can get the OTA which should hopefully come out soon.
I guess once they allow us to download stock 5.0.2, I'll do a re-lock then.
Thanks though for the info.
Hello Folks,
I have already managed to reset the tamper and unlock bit on my OnePlus Two.
So i just bought a Nexus 6 and i am wondering if the unlock bit reset is possible here.
The Nexus 4 and 5 had a unlock bit in the "misc" partition.
I read somewhere that the Nexus 6 has some counter-measures against this kind of tampering.
Has anyone already tried it?
I can provide dumped partitions as i am already rooted.
I am hoping for a good Discussion
thedropdead said:
Hello Folks,
I have already managed to reset the tamper and unlock bit on my OnePlus Two.
So i just bought a Nexus 6 and i am wondering if the same is possible here.
The Nexus 4 and 5 had a Tamper bit in the "misc" partition.
I read somewhere that the Nexus 6 has some counter-measures against this kind of tampering.
Has anyone already tried it?
I can provide dumped partitions as i am already rooted.
I am hoping for a good Discussion
Click to expand...
Click to collapse
There's a tamper ? I wasn't aware. Just the lock logo on the splash screen when the bootloader is unlocked.
mikeprius said:
There's a tamper ? I wasn't aware. Just the lock logo on the splash screen when the bootloader is unlocked.
Click to expand...
Click to collapse
Oh sorry i made a mistake there, i meant the unlock bit, if i relock the bootloader the logo still appears right? so the bootloader will still show that it was unlocked or will it be in factory state?
thedropdead said:
Oh sorry i made a mistake there, i meant the unlock bit, if i relock the bootloader the logo still appears right? so the bootloader will still show that it was unlocked or will it be in factory state?
Click to expand...
Click to collapse
There's not a trip tamper like Samsung's knox. You just unlock the bootloader and there's a lock logo. It also says unlocked in the bootloader screen. If you want to revert back you just relock and everything is as is. Google's Nexus is really the only device that is very open like that. Other devices and mfg. you have some kind of permanent trip.
mikeprius said:
There's not a trip tamper like Samsung's knox. You just unlock the bootloader and there's a lock logo. It also says unlocked in the bootloader screen. If you want to revert back you just relock and everything is as is. Google's Nexus is really the only device that is very open like that. Other devices and mfg. you have some kind of permanent trip.
Click to expand...
Click to collapse
Okay Thank you, I did not have a nexus device before so thats great.
I received the device unlocked because it was used by someone before so i thought it was locked and was showing the lock anyway. but just checked the bootloader and it really was unlocked. So thank you
thedropdead said:
Okay Thank you, I did not have a nexus device before so thats great.
I received the device unlocked because it was used by someone before so i thought it was locked and was showing the lock anyway. but just checked the bootloader and it really was unlocked. So thank you
Click to expand...
Click to collapse
By the way, Google may have modified their software, but I'll say it anyways.....whatever you do, DO NOT lock your bootloader without having OEM unlock checked first even if you are restoring to stock. There are many threads here where users have locked their bootloader then effectively brick their device. Make sure you have OEM unlock checked prior.
Having USB Debugging enabled would also be useful in case of a problem with the device.
I cant unlock frp as It is grayed out the option of oem unlocking in the dev options
pls I need help
Model : LLD-L21
OS : KangVIP Rom (EMUI 8.0.0)
Bootloader Status : Unlocked
In fastboot it says
Phone Unlocked
FRP Locked
did u try dload method?
yes I tried dload
It did not work
I can't upload zipI will send u the file to unlock frp or you can find that file in telegram group of our device
That wont work...
Go to terminal in root mode and do
Code:
Setprop sys.oem_unlock_allowed 1
Than you can change the value and its not longer greyed out.
Darkest-Dark said:
That wont work...
Go to terminal in root mode and do
Code:
Setprop sys.oem_unlock_allowed 1
Than you can change the value and its not longer greyed out.
Click to expand...
Click to collapse
If that dosent work you can also follow the below procedure.
Relock your bootloader. Your phone will factory reset and boot. Then head to developer options and you will see oem unlock is not greyed out. Then just enable oem unlocking and unlock the bootloader. When you boot up again you will see that oem is greyed out but it'll be enabled. So you'll have unlocked fastboot and unlocked frp now.
Fredin_ said:
That wont work...
Go to terminal in root mode and do
If that dosent work you can also follow the below procedure.
Relock your bootloader. Your phone will factory reset and boot. Then head to developer options and you will see oem unlock is not greyed out. Then just enable oem unlocking and unlock the bootloader. When you boot up again you will see that oem is greyed out but it'll be enabled. So you'll have unlocked fastboot and unlocked frp now.
Click to expand...
Click to collapse
This will just brick the device.
Fredin_ said:
If that dosent work you can also follow the below procedure.
Relock your bootloader. Your phone will factory reset and boot. .....<snip>.
Click to expand...
Click to collapse
Never Ever a good idea to try and relock the bootloader.
viratbansal001 said:
This will just brick the device.
Click to expand...
Click to collapse
Sparkrite said:
Never Ever a good idea to try and relock the bootloader.
Click to expand...
Click to collapse
Umm why? Its working pretty fine for me. ?
Fredin_ said:
Umm why? Its working pretty fine for me.
Click to expand...
Click to collapse
Have you Unlocked, Relocked and then Unlocked again ?
[/COLOR]
Sparkrite said:
Have you Unlocked, Relocked and then Unlocked again ?
Click to expand...
Click to collapse
I haven't gone that far. I've unlocked and then relocked.
Everything fine. I believe it's completely safe if you have complete stock firmware installed ie, stock rom, stock recovery, stock Kernal and all that stuff. Otherwise you'll end up in a loop. Guess I forgot that part sorry.
So I know this is someone else's thread but can you tell me if I relocked bootloader will the service center be able to know I'd unlocked before? I don't have the phone unlocked warning at boot. Just curious.
Fredin_ said:
[/COLOR]
I haven't gone that far. I've unlocked and then relocked.
Everything fine. I believe it's completely safe if you have complete stock firmware installed ie, stock rom, stock recovery, stock Kernal and all that stuff. Otherwise you'll end up in a loop. Guess I forgot that part sorry.
So I know this is someone else's thread but can you tell me if I relocked bootloader will the service center be able to know I'd unlocked before? I don't have the phone unlocked warning at boot. Just curious.
Click to expand...
Click to collapse
Hey will it work if I have complete stock firmware like you said? I want to take my device to service centre but my bootloader is unlocked and I have L OS installed. Will relockeing bootloader get me back my waranty?
PS. I have already asked in question and answers section but no reply yet. ?I
Fredin_ said:
[/COLOR]
I haven't gone that far. I've unlocked and then relocked.
Everything fine. I believe it's completely safe if you have complete stock firmware installed ie, stock rom, stock recovery, stock Kernal and all that stuff. Otherwise you'll end up in a loop. Guess I forgot that part sorry.
So I know this is someone else's thread but can you tell me if I relocked bootloader will the service center be able to know I'd unlocked before? I don't have the phone unlocked warning at boot. Just curious.
Click to expand...
Click to collapse
Some if not all bootloaders nowadays are not "locked" by the manufacturer using a code but are usually "locked" by employing a digital signature and/or a CID (carrier Id) hard coded into the OS. When we "unlock" a bootloader with a code we are simply using a routine written into the loader by the manufacturer to now ignore signatures and/or CIDs of the OS and this allows us to flash whatever we wish.
Sometimes upon unlocking using a code the DS/CID is erased/altered and cannot be retrieved, so not a good idea to relock an altered bootloader.
At least, that is my understanding of it.
Krazydon said:
Hey will it work if I have complete stock firmware like you said? I want to take my device to service centre but my bootloader is unlocked and I have L OS installed. Will relockeing bootloader get me back my waranty?
PS. I have already asked in question and answers section but no reply yet. I
Click to expand...
Click to collapse
Sparkrite said:
Some if not all bootloaders nowadays are not "locked" by the manufacturer using a code but are usually "locked" by employing a digital signature and/or a CID (carrier Id) hard coded into the OS. When we "unlock" a bootloader with a code we are simply using a routine written into the loader by the manufacturer to now ignore signatures and/or CIDs of the OS and this allows us to flash whatever we wish.
Sometimes upon unlocking using a code the DS/CID is erased/altered and cannot be retrieved, so not a good idea to relock an altered bootloader.
At least, that is my understanding of it.
Click to expand...
Click to collapse
That's too bad. Means we won't get back our waranty if we relock it ?. So thanks for the heads up . I'll be careful while unlocking it again (if ever).?
Fredin_ said:
That's too bad. Means we won't get back our waranty if we relock it . So thanks for the heads up . I'll be careful while unlocking it again (if ever).
Click to expand...
Click to collapse
Not necessarily, I doubt if most service centres would bother delving that deep, but maybe some would.
I don't know...........
Sparkrite said:
Not necessarily, I doubt if most service centres would bother delving that deep, but maybe some would.
I don't know...........
Click to expand...
Click to collapse
Thanks for your quick reply but do you know any way to get back CID/DS
No, but I haven't delved that deeply into Huaweis bootloaders, but I NEVER attempt to re-lock them.
Sparkrite said:
No, but I haven't delved that deeply into Huaweis bootloaders, but I NEVER attempt to re-lock them.
Click to expand...
Click to collapse
Anyways thanks for your replies. Means a lot ?