Database Users

[Q] Revert to old bootloader for unlocking

Hi,
My M is running system 9.8.1Q-78
I know the bootloader can't be unlocked with this OTA.
My question is, I gained root like a half an hour ago, if I were to flash back to 4.0.4 7.7.1Q-144 OTA with RSDLite (I have the full fastboot zip) would this also revert the bootloader to a version which can be unlocked?
Thanks.
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afunyun said:
Hi,
My M is running system 9.8.1Q-78
I know the bootloader can't be unlocked with this OTA.
My question is, I gained root like a half an hour ago, if I were to flash back to 4.0.4 7.7.1Q-144 OTA with RSDLite (I have the full fastboot zip) would this also revert the bootloader to a version which can be unlocked?
Thanks.
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No.
Sent from my XT907 using Tapatalk 2

^ and that resolves that question.
if you want a further explanation, there is no way to downgrade the bootloader. RSDLite only restores the system. once the bootloader is upgraded, your SOL

dragonhart6505 said:
^ and that resolves that question.
if you want a further explanation, there is no way to downgrade the bootloader. RSDLite only restores the system. once the bootloader is upgraded, your SOL
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Click to collapse
[nitpick]
technically it's the trustzone kernel that's getting upgraded. but yeah. once you're on .78, you're stuck

[Q] Bootloader Flash Fail

I am sending in my Nexus 7 (cracked screen) for repair. I just flashed it back to stock and locked the bootloader before I send it in. When I flashed stock 4.4.4, I noticed that it flashed the radio with the same version (not sure why), and it also attempted to flash the bootloader with the same version (not sure why) and it failed (not sure why).
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Why did it attempt to flash it, and why did it fail?

flyoffacliff said:
I am sending in my Nexus 7 (cracked screen) for repair. I just flashed it back to stock and locked the bootloader before I send it in. When I flashed stock 4.4.4, I noticed that it flashed the radio with the same version (not sure why), and it also attempted to flash the bootloader with the same version (not sure why) and it failed (not sure why).
Why did it attempt to flash it, and why did it fail?
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Looks like you are using a toolkit? If so that is probably why

demkantor said:
Looks like you are using a toolkit? If so that is probably why
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Why would a toolkit cause this? It enters the same commands, just automated. Right?
I used the latest version of the WugFresh toolkit, which is very popular, and no one else has problems.

Well every time I see a similar issue it is from a toolkit, which happens a lot across just about every android device I have seen. Granted it works a lot too but for your situation manually doing everything works closer to 100% of the time and is actually faster
But of course choice is yours how you want to do things

Stuck in Boot loop

Hey i am trying to fix one customers phone and its stuck in boot loop, this screen:
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I read a lot and figured i would have to put the phone in fastboot and flash to stock. When i am trying to do that it says my bootloader is locked so i unlocked it but whenever i type any command it locks the bootloader again.
heres the phone in fastboot mode:

kaboose786 said:
Hey i am trying to fix one customers phone and its stuck in boot loop, this screen:
I read a lot and figured i would have to put the phone in fastboot and flash to stock. When i am trying to do that it says my bootloader is locked so i unlocked it but whenever i type any command it locks the bootloader again.
heres the phone in fastboot mode:
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I'm intrigued by that message at the bottom of your image- Device bootloader is makoz30d Update requires makoz20i. Now, makoz30d is the android 4.4 bootloader while makoz20i is the android 4.3 bootloader. Is there some rom confusion here?

A bootloader locking itself automatically after a manual unlock is a sign of a failed emmc (memory chip). This is a hardware issue and cannot be resolved unfortunately.

lolcakes203 said:
A bootloader locking itself automatically after a manual unlock is a sign of a failed emmc (memory chip). This is a hardware issue and cannot be resolved unfortunately.
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+1
Sent from my Nexus 5 using XDA Free mobile app

[APP] Turbo Bootloader Checker

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Turbo Bootloader Update
​
Now that we have root, the next step is having the bootloader unlocked, right? Well here is an app to keep track of just that. It may look a bit familiar to some of you...
Are you stuck at work and want to know if we have bootloader unlock? Are you away from a computer? Did you just kill a man and you can hear the sirens in the distance.. knowing they are coming to get you.. and need to know before you're canned.. "do we have bootloader unlock?" Then this is the app for you.
I decided to change up the root checker app to the bootloader checker to keep hope alive. There are still some working on it. Furthermore, there is a latest news section so that you can get a little more information than a yes or no. I also specifically chose to put this in the Droid Turbo General forum because it's mostly informational. Not much Turbo Related development going on here. Check it out!
Initially, I was messing around with Google's new Material Design standards I decided to throw this together. I then was messing around with parsing json in lua with Corona's SDK and decided to modify the original app. It'll be updated the moment the bootloader has been unlocked.
For those of you who aren't aware:
ROOT IS HERE! Go get it! Tutorial is here. Post is here.

Nice work man, lets hope this app is only useful for a few days just like with the root version!

Have a problem with installing official firmware

Hi everybody,help me i if you can,please
I have only "modified" Software status in the bootloader(even after flashing stock firmware).Now i have more lags then after first week of using phone,and the sound became more cheep(it is hard to listen song on my phone)
Question is next.
How can i flash official firmware and get "Official" Software status in the bootloader?I think this situation is consequence of my multiple rooting and flashing castoms
P.S. Added screenshot and sorry for my english level
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You would need to relock the bootloader to get that to go back to official. I don't believe there is a way to do so currently.
Having an unlocked bootloader won't cause audio issues, just an FYI

Karlinski said:
You would need to relock the bootloader to get that to go back to official. I don't believe there is a way to do so currently.
Having an unlocked bootloader won't cause audio issues, just an FYI
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So as I understood,I need to flash it again and relock bootloader again?

That would get you back to full stock. However, like I said before, I don't think there is a signed bootloader image anywhere, so I don't think you can fully lock that back up yet.

Karlinski said:
That would get you back to full stock. However, like I said before, I don't think there is a signed bootloader image anywhere, so I don't think you can fully lock that back up yet.
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Thank you I will try this

I was able to relock bootloader using this guide:
https://forum.xda-developers.com/showpost.php?p=72789290&postcount=16
Not sure if it will work for all model variants but it did for mine...

surrealjam said:
I was able to relock bootloader using this guide:
https://forum.xda-developers.com/showpost.php?p=72789290&postcount=16
Not sure if it will work for all model variants but it did for mine...
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Thank you