Can't unlock Bootloader - Xperia Z Q&A, Help & Troubleshooting

when i go into the service menu to see if the bootloader can be unlocked it says unlock Bootloader allowed: No
What can i do to unlock the bootloader, Please help.

Nothing. It is permanently locked.
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kingvortex said:
Nothing. It is permanently locked.
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Maybe the status changed while rooting
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gm007 said:
Maybe the status changed while rooting
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I did think that, but the OP is on Three UK, according to his post history and they supply bootloader locked phones
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Okay then only way to unlock your bootloader is
Sell your phone and buy a unlocked one
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The phone is unbranded and when i try and unlock the bootloader i get the following message
...
FAILED (remote: Command not allowed)
finished. total time: 0.007s

slyviper1700 said:
The phone is unbranded and when i try and unlock the bootloader i get the following message
...
FAILED (remote: Command not allowed)
finished. total time: 0.007s
Click to expand...
Click to collapse
Forgive me for asking this, but if your phone is unbranded, why were you complaining about Three being slow with updates?
http://forum.xda-developers.com/showthread.php?p=40765868
Updates for unbranded handsets are nothing to do with carriers
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Friends Phone
kingvortex said:
Forgive me for asking this, but if your phone is unbranded, why were you complaining about Three being slow with updates?
http://forum.xda-developers.com/showthread.php?p=40765868
Updates for unbranded handsets are nothing to do with carriers
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slyviper1700 said:
The phone is unbranded and when i try and unlock the bootloader i get the following message
...
FAILED (remote: Command not allowed)
finished. total time: 0.007s
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Click to collapse
Check the bootloader unlocking status in the service menu and let us know

This is what it looks like.
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<MOD EDIT> Removed IMEI from image.

slyviper1700 said:
This is what it looks like.
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I would remove that image. It has the IMEI visible.
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Thanks
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Is it possible to flash Pac Rom without unlocking the boot loader as this is the reason why I want to unlock the boot loader.
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slyviper1700 said:
Is it possible to flash Pac Rom without unlocking the boot loader as this is the reason why I want to unlock the boot loader.
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No, because you need to flash a custom kernel.
Question - has the unlock status always said 'No', even before rooting? If it has, then there is no way to unlock it at all. Even if you debrand the phone by flashing a generic rom
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I think it said no before aswell.
Would it be unlocked if I decided replace the boot partition
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slyviper1700 said:
I think it said no before aswell.
Would it be unlocked if I decided replace the boot partition
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It's not that simple. If it was, someone here would have done it already. The bootloader is protected by all sorts of encryption as far as I know (I'm new to Sony and Qualcomm devices in general, but there's definitely some heavy security in place). Messing with that sort of thing will probably result in a brick.
Looks like you're stuck with stock based roms
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God Damn It
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I generally mess around with every phone I get but now...
what can I do, might aswell wait for something to come along
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slyviper1700 said:
I generally mess around with every phone I get but now...
what can I do, might aswell wait for something to come along
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At least the stock rom is pretty good, and there are plenty of stock based roms to play with

I had the same problem with my xperia play and my refurbished htc sensation. They all couldn't have their bootloaders unlocked by normal means.
I managed to unlock them in the end with third party programs. But any way when i tried unlocking with flashtool, i got the following log.

Related

How to root xperia T 4.1.2 ?

How to xperia t jellybean without Unlocking boatloader
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Read the all in one thread.
Downgrade to ics .303
Root using bin4rys method
Install cmw
Flash a pre rooted stock jb Rom
Flash a stock jb kernel
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How do I customise the signature on xda premium app?
gregbradley said:
Read the all in one thread.
Downgrade to ics .303
Root using bin4rys method
Install cmw
Flash a pre rooted stock jb Rom
Flash a stock jb kernel
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How do I customise the signature on xda premium app?
Click to expand...
Click to collapse
You can do this.
OR a much easier method is to Unlock the Bootloader and use DoomLord's method with his kernel. I used the method in Post #3: http://forum.xda-developers.com/showthread.php?t=2129121
He said without unlocking the bootloader
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How do I customise the signature on xda premium app?
I don't want to unlock bootloader, my phone is unlocked
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Mohammed Atif said:
I don't want to unlock bootloader, my phone is unlocked
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What?
Is your bootloader unlocked or locked?
I'm not sure bootloader is unlocked or locked, I dont want to unlock if it is locked, is there a way to root without unlocking bootloader?
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If you are unsure them it is locked, because you have to unlock it yourself.
Yes you can root without unlocking, follow the instructions I gave above
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How do I customise the signature on xda premium app?
Thank you I'm gonna try
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How can unlock bootloader? Any easy way todo I tried from developers.sony I couldn't do it pls can any one help
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Mohammed Atif said:
How can unlock bootloader? Any easy way todo I tried from developers.sony I couldn't do it pls can any one help
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Yiou are kidding right....did you do any reading...
Please read the all in one thread. Its the first thread in the Q&A section. It gives all the info you need on unlocking our bootloader.
But first,
goto the dialer and press
*#*#7378423#*#*
goto service info/configuration
If the bottom line says
bootloader unlocked allowed: No
You cannot currently unlock your bootloader by any known means
If it says
bootloader unlock allowed :Yes
Then read the all in one thread and follow the instructions
It says bootloader unlock yes, I tried doing I couldn't do it
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You are not following the instructions properly then, and unless you give more details in how and at what step it fails I can't be of much more use
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Sony Flagship device circa 2145
gregbradley said:
You are not following the instructions properly then, and unless you give more details in how and at what step it fails I can't be if much more use
Sent from my star trek communicator
Sony Flagship device circa 2145
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Not only you, greg, but no-one can be of any use with this little information...
straightup100 said:
Hi everyone, please I really need help on how to root xperia t, I was using Samsung galaxy s2 and rooting it was so easy but xperia t is a Little bit confusing for me. I am a novice with sony xperia t. I have already unlocked the bootloader, but for rooting, I need a video tutorial or step by step manual on how to do this, because I need to do it. I have so many programs that require root Access, without root is all useless. thank you very much beautiful people and hoping to hear from you....bye
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wow,
why have you unlocked your bootloader? What did you want to do?
Anyway, now that you have unlocked there is no need to root, just flash a custom kernel (I recommend DooMKerneL, find it in the dev section, make sure you get the one for the T)
Once you have flashed that you will have root.

[Q] What ROMS can the locked bootloader Xperia Z flash

Hi,
Just as the title says. What ROMS can we flash with our locked bootloader Xperia Z's
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weeo said:
Hi,
Just as the title says. What ROMS can we flash with our locked bootloader Xperia Z's
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You can use any Rom that is based on a stock firmware and kernel.
Make sure you have cwm recovery to flash Rom
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abd_alazeez2002 said:
You can use any Rom that is based on a stock firmware and kernel.
Make sure you have cwm recovery to flash Rom
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Oh. That sucks. So I'll never get CyanogenMOD on my Xperia Z
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weeo said:
Oh. That sucks. So I'll never get CyanogenMOD on my Xperia Z
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Not unless someone manages to find an exploit to unlock it.
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abd_alazeez2002 said:
You can use any Rom that is based on a stock firmware and kernel.
Make sure you have cwm recovery to flash Rom
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i heard you need to be on stock based firmware to install the recovery,
but you can flash on other roms and manually flash the kernel or something like that
im not too sure,
Kallb123 said:
Not unless someone manages to find an exploit to unlock it.
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And what's the possibility of that happening
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Kallb123 said:
Not unless someone manages to find an exploit to unlock it.
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BL is already unlockable, one unlocked u lose all DRM, there is no need for exploit.
Root was needed just to push the recovery to the stock kernel.
And CM uses a completely different kernel than the stock and the only way to flash it by unlocked BL
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abd_alazeez2002 said:
BL is already unlockable, one unlocked u lose all DRM, there is no need for exploit.
Root was needed just to push the recovery to the stock kernel.
And CM uses a completely different kernel than the stock and the only way to flash it by unlocked BL
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Not all of us have unlockable bootloader though
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weeo said:
Not all of us have unlockable bootloader though
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Exactly. I'm not sure of the chances that non-unlockable devices will become unlockable. If I said any amount if time I'd be making it up :/
One of the devs said that Sony bootloaders are locked up tight though...
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Kallb123 said:
Exactly. I'm not sure of the chances that non-unlockable devices will become unlockable. If I said any amount if time I'd be making it up :/
One of the devs said that Sony bootloaders are locked up tight though...
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Yeah. I'm trying to trade my Xperia Z in for an unlockable one now
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[HELP] able to unlock bootloader said yes but now no...

after rooting from the http://forum.xda-developers.com/showthread.php?t=2186368
EasyRootingToolkit_XPERIA-Z_SO-02E_v101-ENGLISH_tkymgr.zip
i successfully rooted the cell 1st go.
but able to unlock bootloader says no..
please help
tia
Adrian
http://forum.xda-developers.com/showpost.php?p=39178406&postcount=96
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gm007 said:
http://forum.xda-developers.com/showpost.php?p=39178406&postcount=96
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how do i run it? & thanks!!!
agiv2k said:
how do i run it? & thanks!!!
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Install in cwm or replace the file to the correspond folder.
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Plz help me to root my Xperia TX 4.0.4

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http://bit.ly/1g96gQz
why not try other unlock and root kernel instead available right
anhtuankd said:
why not try other unlock and root kernel instead available right
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Because not everyone can unlock their phone and doing it voids warranty, but just rooting does not
I tried a lot of way but failed.
Isn't it possible to root my device Xperia TX 7.0.A.3.212???
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Maruf1211 said:
I tried a lot of way but failed.
Isn't it possible to root my device Xperia TX 7.0.A.3.212???
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then you are not doing it correctly.
Please look inpost 2of the all in on thread which is the very first thread in this section. its in the stickies..
you check Rooting status: Bootloader unlock allowed is YES or NO
anhtuankd said:
you check Rooting status: Bootloader unlock allowed is YES or NO
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That does not matter.
You can root the phone no matter what the boot loader status is
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Didn't work
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[Q]Does this mean my bootloader unlocked?

Hello, I've got a kinda stupid question here, I attempt to unlock the bootloader, somehow the message say fail, but when i check the service menu, it say bootloader unlocked: Yes... now my question is, is it really unlocked?
Is your camera still working ok?
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bogdan wst said:
Is your camera still working ok?
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unfortunately camera has stopped working!
well it's not working... I have TA back up. so am is my bootloader unlocked?
Yes
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Solved
Thanks for your answer, very much appreciated.!!!!!

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