Bootloader unlock is not allowed - Android Q&A, Help & Troubleshooting

Sent from my C1905 using XDA Free mobile app
I am using Sony Xperia m (C1905) and it is already rooted. However I cannot unlock the bootloader of my device since it is not allowed by the device. When I checked the service info it says "Bootloader unlock allowed : no". So I cannot bypass this. I want to install a custom ROM but because of this it seems impossible.

You have a carrier branded Xperia, right?
Then ONLY Sony can do it and trust me, they won't
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Sent from my C1905 using XDA Free mobile app
Then I won't be able to go any further, will I? I have to stuck in JB 4.3 until I sell this.

You got it. You are stucked In TVE kernel, which needs to be digitally signed by Sony.
Since most custom ROMs need it's own kernel, you need to remain In stock one, sorry
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Thanks!!
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Odp: [Q] Unlock bootloader with SETool
No. You can't unlock it with any programs. It's impossible.
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Help Xperia u unlocking bootloader

I want to unlock the bootloader of the xperia u st25i and i have the bootloader allow unlock, or whatsoever, that sais yes.
But I dont want to send sony my imei because of the warranty. (if i dont send sony any data of me unlocking bootloader, incase of problem if i relock it, the waranty will be back i think)
Is there a form of unlocking it in which i dont have to send sony my imei and i dont have to pay either???
I ve been serching for severan days and nothing interesting i have found.
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There is no other way to unlock your bootloader unless you make an unlock request to sony, and obtain the unique code for your device to complete the process of unlocking, However there's a method called "Test point method" where you don't need to send the request, but its not efficient and not advised to do.
Anyways if warranty is your problem, don't worry !
Back up your TA and DRM keys, there's a tutorial for it, before unlocking,
And you can gain your warranty after relocking, and restoring them.
Follow this for unlocking
http://forum.xda-developers.com/showthread.php?t=1527159
Sent from my Xperia U using xda app-developers app
http://forum.xda-developers.com/showthread.php?t=1971363
Try flashtool method. It worked for many of the xperia users.
If i helped press thanks.
I know that metod, but as i said, i have to ask sony for the unlock key, and my question is if there is a method that i dont have to ask sony for a code.
Thanks anyway.
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There isn't any solution :/
Sent from my Xperia U using xda premium
I supose that
Anyway i will think to ask sony the code...
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In the end i use the code from sony
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Just asking Sony for the code shouldn't affect your warranty, because asking for it and actually using it are different, and just asking it, but not using it doesn't affect your phone.
I unlocked mine anyway as Sony UK told me just unlocking the bootloader doesn't void the warranty.

Update Android Version

Hello team.
I have a motorola photon 4G (I´m living in Colombia) I´m trying to install an app but it ask for android 4.0 or higher.
My question is. Can i install the app with some tool or i need to install a new room on my phone?
If i need install a new room. How can i do it on this phone?
Thanks for the help.:good:
If you are in 2.3.4 you need unlock the boot loader and after that you can install a ROM, if you have 2.3.5 you can't unlock and can't flash ROMs higher than 2.3.5
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carlosirai said:
If you are in 2.3.4 you need unlock the boot loader and after that you can install a ROM, if you have 2.3.5 you can't unlock and can't flash ROMs higher than 2.3.5
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Click to expand...
Click to collapse
:crying::crying::crying::crying::crying: I have 2.3.5
Thanks for the answer
ttp://forum.xda-developers.com/showthread.php?t=1393519
post #6 read read read
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