Is it possible to re-lock and unlocked bootloader?
I know updating should get rid of an unlocked bootloader, but I still get the warning screen on bootup.
Reason I ask is because I had it unlocked, got an OTA update from Verizon for kitkat, and soft bricked my phone. Got stuck in a boot loop with the unlocked bootloader warning message.
I just flashed back to 4.0.4 using RDS Lite 6.1.4. Id like to reset the boot loader to locked before updating to kitkat again.
It's not possible to re-lock. I've updated to KK and can confirm that the BL is, in fact, still unlocked.
I have read somewhere that when you unlock the bootloader, it actually physically blows some kind of physical fuse. or maybe I miusread it.
Someone had made a special logo.img you can flash to get rid of that message.
Although if you really want a locked BL phone, I'd be more than happy to trade you.
MxPhenom 216 said:
I know updating should get rid of an unlocked bootloader, but I still get the warning screen on bootup.
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Not that it helps, but in Australia, we do not get the nasty warning message after unlocking the bootloader. And I think that the phones are actually sold with an unlocked bootloader.
GnatGoSplat said:
Although if you really want a locked BL phone, I'd be more than happy to trade you.
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:laugh:
Related
While being an idiot while I am on lunch at work I decided to attempt to flash TWRP to my tablet. Used flashily and I thought everything's was okay because my boot loader displays a unlocked padlock with the word "custom" below it. I thought this ment my boot loader was unlocked but it seems that I am wrong.
Now when starting up I see an error icon with "System software not authorized by AT&T has been found on your tablet". How would I go about unlocking my boot loader without losing my data?
kenshin1388 said:
While being an idiot while I am on lunch at work I decided to attempt to flash TWRP to my tablet. Used flashily and I thought everything's was okay because my boot loader displays a unlocked padlock with the word "custom" below it. I thought this ment my boot loader was unlocked but it seems that I am wrong.
Now when starting up I see an error icon with "System software not authorized by AT&T has been found on your tablet". How would I go about unlocking my boot loader without losing my data?
Crap sorry didn't realise this was the wrong section. Haven't been on here since my TF101 days. Apologies.
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Reflash your firmware via Odin . Take it from here http://forum.xda-developers.com/tab-4/general/links-stock-galaxy-tab-4-firmware-t3013128
Thanks @thisisapoorusernamechoice
I'm guessing there is no way to unlock the boot loader?
kenshin1388 said:
I'm guessing there is no way to unlock the boot loader?
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Click to collapse
Unfortunately that is correct. This is why I tell anyone interested in such things (custom recoveries, custom ROMs, etc.) to avoid AT&T and Verizon branded devices like the plague. Starting around 2014 they started locking down the bootloaders on all their devices and nobody has figured out a way to unlock them. I was stuck with an AT&T-branded phone for two years with no custom recovery or custom rom. Now I happily have a T-Mobile S5, still on the AT&T network, running CM13. Sorry for the rant, long story short, there's no way around the locked bootloader B.S.
Hi Guys
I have 3 questions regarding Moto X Style Bootloader unlocking.
Can we unlock the Moto X Style bootloader after locking it after first unlock?
Can this process be repeated multiple times if we need to?
Can we use the same unique unlock key that we received while unlocking the bootloader for the first time?
Thank you
Why would you want to do this?
psandeepn said:
Hi Guys
I have 3 questions regarding Moto X Style Bootloader unlocking.
Can we unlock the Moto X Style bootloader after locking it after first unlock?
Can this process be repeated multiple times if we need to?
Can we use the same unique unlock key that we received while unlocking the bootloader for the first time?
Thank you
Click to expand...
Click to collapse
Yes you can do it as many times as you want but 1: Why would you relock afterwards 2: You will have to deal with a factory reset every time
PS: I dont know about the unlock key but most likely you can use the same
Is there any way to remove the Bootloader unlock warning ⚠ without relocking bootloader?
Sent from my XT1572 using Tapatalk
psandeepn said:
Hi Guys
I have 3 questions regarding Moto X Style Bootloader unlocking.
Can we unlock the Moto X Style bootloader after locking it after first unlock?
Can this process be repeated multiple times if we need to?
Can we use the same unique unlock key that we received while unlocking the bootloader for the first time?
Thank you
Click to expand...
Click to collapse
Theres no reason really to relock it. Once its unlocked, the bootloader will show that it was unlocked regardless if you relock it.
atishey23 said:
Is there any way to remove the Bootloader unlock warning without relocking bootloader?
Sent from my XT1572 using Tapatalk
Click to expand...
Click to collapse
Yes
Pyramid Head said:
Yes you can do it as many times as you want but 1: Why would you relock afterwards 2: You will have to deal with a factory reset every time
PS: I dont know about the unlock key but most likely you can use the same
Click to expand...
Click to collapse
Thanks for your reply.
The reason for attempting to re-lock bootloader is to get the OTA update from Motorola till date, especially Reliance Jio VoLTE support...But if I wish to make any further changes to my phone with any custom rom I should be able to do it by unlocking the bootloader again.
Thanks
psandeepn said:
Thanks for your reply.
The reason for attempting to re-lock bootloader is to get the OTA update from Motorola till date, especially Reliance Jio VoLTE support...But if I wish to make any further changes to my phone with any custom rom I should be able to do it by unlocking the bootloader again.
Thanks
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Click to collapse
You don't have to lock the bootloader to take an OTA. You just need to be in a completely unmodified stock state: stock recovery, unmodified system, no root, etc. Bootloader can be unlocked.
jason2678 said:
You don't have to lock the bootloader to take an OTA. You just need to be in a completely unmodified stock state: stock recovery, unmodified system, no root, etc. Bootloader can be unlocked.
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Click to collapse
Thanks for your reply.
I have unlocked bootloader, TWRP recovery and rooted. If I unroot and flash stock recovery, I will be able to get OTA? Do I need to take care of anything else?
psandeepn said:
Thanks for your reply.
I have unlocked bootloader, TWRP recovery and rooted. If I unroot and flash stock recovery, I will be able to get OTA? Do I need to take care of anything else?
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Click to collapse
That might work. Frankly I'm not sure. I haven't actually taken successfully an OTA on any phone since sometime in 2013 honestly.
I once flashed this phone totally back to stock. Every partition but logo, and it failed to take an OTA. I don't know if it failed because I had a modified logo, or maybe I had mounted system r/w. Not sure.
Hopefully someone more knowledgeable on this topic will chime in.
psandeepn said:
Thanks for your reply.
I have unlocked bootloader, TWRP recovery and rooted. If I unroot and flash stock recovery, I will be able to get OTA? Do I need to take care of anything else?
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Click to collapse
The answer is maybe... it depends what you have changed and what this OTA updater script actually checks for.
We know that a stock bootloader (which can be unlocked, that is not relevant), stock recovery, and stock system image are required to take an OTA. If the system image has been modified it can fail, and we know the updater has the ability to see if /system has EVER been mounted R/W and can fail for that condition although so far it doesn't seem Moto is going that extreme.
We do know a modified logo does not affect an OTA, in fact, you can even relock the bootloader with a modified logo so it must not be a significant check.
jason2678 said:
That might work. Frankly I'm not sure. I haven't actually taken successfully an OTA on any phone since sometime in 2013 honestly.
I once flashed this phone totally back to stock. Every partition but logo, and it failed to take an OTA. I don't know if it failed because I had a modified logo, or maybe I had mounted system r/w. Not sure.
Hopefully someone more knowledgeable on this topic will chime in.
Click to expand...
Click to collapse
On my father's moto e lte I received OTA without issue with unlocked bootloader, I just flashed stock image and it was ready to update, btw I'm not sure but I've seen somewhere info that you can change bootlogo even with locked bootloader so I don't think that's the issue.
Btw after you once unlock bootloader you won't be able to truly lock it again, next time you will be able to unlock it without any code so you lose some security in this process, frp won't be working anymore.
iks8 said:
On my father's moto e lte I received OTA without issue with unlocked bootloader, I just flashed stock image and it was ready to update, btw I'm not sure but I've seen somewhere info that you can change bootlogo even with locked bootloader so I don't think that's the issue.
Btw after you once unlock bootloader you won't be able to truly lock it again, next time you will be able to unlock it without any code so you lose some security in this process, frp won't be working anymore.
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Click to collapse
You still need code to unlock each time, but it's the same code, and if you relock OEM Unlocking gets turned off and you would have to turn it on again... So if something fails on the first boot after relocking, your f*cked, no way to unlock.
And FRP definitely works if the bootloader is unlocked, it is just much easier to bypass.
acejavelin said:
You still need code to unlock each time, but it's the same code, and if you relock OEM Unlocking gets turned off and you would have to turn it on again... So if something fails on the first boot after relocking, your f*cked, no way to unlock.
And FRP definitely works if the bootloader is unlocked, it is just much easier to bypass.
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Click to collapse
You're right sorry
Hey guys
Has anyone had warranty work done after unlocking your bootloader and relocking?
Half the attraction of this phone was the outstanding two year warranty. But I need my root access.
Thx
Sent from my ZTE A2017U using Tapatalk
Don't want to have to choose between root and warranty...
Sent from my ZTE A2017U using Tapatalk
If you unlock the bootloader using the unofficial method, you could always relock the bootloader before sending it on warranty (depending on how broken it is)
XblackdemonX said:
If you unlock the bootloader using the unofficial method, you could always relock the bootloader before sending it on warranty (depending on how broken it is)
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Click to collapse
Well that's what I'm assuming, but I don't know if there is some kind of permanent bit like uh Samsung Knox that can tell them it was unlocked at one point.
Sent from my ZTE A2017U using Tapatalk
On a bootloader unlocked device, boot into the stock recovery, select the bootloader option.
Look at the last entry - device state. On a virgin phone it says locked. I'd expect it to say something else if the BL is unlocked. Further, does relocking bring it back to locked state, or something else. If something else, then it would seem they can check if the BL was unlocked.
I haven't had time to mess with mine, will be this weekend's project.
gpz1100 said:
On a bootloader unlocked device, boot into the stock recovery, select the bootloader option.
Look at the last entry - device state. On a virgin phone it says locked. I'd expect it to say something else if the BL is unlocked. Further, does relocking bring it back to locked state, or something else. If something else, then it would seem they can check if the BL was unlocked.
I haven't had time to mess with mine, will be this weekend's project.
Click to expand...
Click to collapse
I Asked this in one of the other unlocking topics before.
When it's locked, it says "locked".
When it's unlocked, it says "unlocked".
When the bootloader has been re-locked, it says "locked" again.
Besides this and having submitted for the official bootloader unlock (when it was available), it's unknown if there's any other way that ZTE can tell if you are/have been bootloader unlocked.
^^Thanks.
Valid point. Could be some hidden fuses that get tripped - like what samsung uses.
Highly unlikely that they can tell with the unofficial method.
Sent from my ZTE A2017U using Tapatalk
bluenote73 said:
Well that's what I'm assuming, but I don't know if there is some kind of permanent bit like uh Samsung Knox that can tell them it was unlocked at one point.
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Click to collapse
I'm not 100% sure but I think there is nothing like Knox in the Axon 7.
Hi.
I just bought myself a used nexus 6p and im thinking of rooting it to get some more customization done
Before i only used Samsung phones which had this flash counter thing and then knox that kept the number of flashes to void the warranty and all. Is there this kind of measure on 6p or it's just the same as it was before {no triangles or anything) when i flash stock and lock the bootloader after i change my mind?
McXred said:
Hi.
I just bought myself a used nexus 6p and im thinking of rooting it to get some more customization done
Before i only used Samsung phones which had this flash counter thing and then knox that kept the number of flashes to void the warranty and all. Is there this kind of measure on 6p or it's just the same as it was before {no triangles or anything) when i flash stock and lock the bootloader after i change my mind?
Click to expand...
Click to collapse
No, only samjunk does stupid **** like that.
If your BL is unlocked which it should be if you are on anything other than stock, you will see a warning message each time you boot the phone. And before you act like you have ocd or something, NO that message can not be removed.
Lawlrus said:
No, only samjunk does stupid **** like that.
If your BL is unlocked which it should be if you are on anything other than stock, you will see a warning message each time you boot the phone. And before you act like you have ocd or something, NO that message can not be removed.
Click to expand...
Click to collapse
I haven't unlocked the bl yet as there was no point since I didn't want to root before I got the answer from you. I know how to read tutorials and I'm very familiar with flashing so that's no probs for me. Doesn't the message disappear after you lock the bootloader? (Just assume that I went to custom ROM didn't like it got back to stock ROM and locked the bl) will the message still be there? Because I think it says 'your phone can't be checked for corruption" but it says so only if the bl is unlocked not all the time after it's been unlocked doesn't it?
McXred said:
I haven't unlocked the bl yet as there was no point since I didn't want to root before I got the answer from you. I know how to read tutorials and I'm very familiar with flashing so that's no probs for me. Doesn't the message disappear after you lock the bootloader? (Just assume that I went to custom ROM didn't like it got back to stock ROM and locked the bl) will the message still be there? Because I think it says 'your phone can't be checked for corruption" but it says so only if the bl is unlocked not all the time after it's been unlocked doesn't it?
Click to expand...
Click to collapse
Right, it shows that message when the BL is unlocked, once you relock your BL that *should* go away, never tried it because I don't plan on even being back on stock with no root.
If you do any modifications to the device even root, or using a stock custom ROM like we have, it is suggested to NOT relock your BL, while on it. Keep that in mind.
You want to go back to full stock to lock it, then reflash the factory image
Hey, experts! I have a question. Can I keep the ROOT and LOCK BOOTLOADER?
What I want to do with my phone is,
• Unlock Bootloader
• Revert to Oreo(I'll upgrade later, my phone has some software issues)
• Root
• Lock Bootloader
It's this possible?? Because, techmesto, narender Singh claimed that, looking Bootloader after rooting results in bricking up the phone.
Absolutely don't lock it. He's probably right. Just about everything sends this phone into a bootloop, so yeah, it will probably brick it. Even if it boots, OTA will also almost certainly be broken. You'll have to pay to get it unlocked again.
Can you help me to unlock my bootloader
cricket4all said:
Can you help me to unlock my bootloader
Click to expand...
Click to collapse
Ask @singhnsk or @Hikaricalyx