Develop Bugs

[Q] unlocking ion

hi, I have an lt28i and I am currently running miui with a locked bootloader, I would like to run some diffrent roms but I need to unlock my bootloader. so I followed the instructions on the sony page, but after checking if my phone could be unlocked it said no.... so I was just wondering if there is any other way to unlock it... thanks

bubbajoe777 said:
hi, I have an lt28i and I am currently running miui with a locked bootloader, I would like to run some diffrent roms but I need to unlock my bootloader. so I followed the instructions on the sony page, but after checking if my phone could be unlocked it said no.... so I was just wondering if there is any other way to unlock it... thanks
Click to expand...
Click to collapse
Nope. Bootloader unlock allowed: no means no current way to unlock it.
BTW search for this next time please as it has been discussed ad nauseum.

[Q] AT&T unlocked bootloader r800at

Hi all-
I have a r800at that is produced 12w20, which according to the unlock bootloader community there is no way to unlock the bootloader to this device, not even using the testpoint method.
I really want to install custom roms on my device, I am on the AT&T network. Any recommendations on where I should purchase a new/used device that has this capability ? I am thinking just ebay but I don't know if there are any other resellers I should be looking for
Thanks

udubnate said:
Hi all-
I have a r800at that is produced 12w20, which according to the unlock bootloader community there is no way to unlock the bootloader to this device, not even using the testpoint method.
I really want to install custom roms on my device, I am on the AT&T network. Any recommendations on where I should purchase a new/used device that has this capability ? I am thinking just ebay but I don't know if there are any other resellers I should be looking for
Thanks
Click to expand...
Click to collapse
Well try flashing a r800i firmware and use the bootloader unlock method in flashtool. I have an r800at with an unlocked bootloader but I don't specifically know what I did. If my method doesn't work pm me and I'll tell you what I did since I got my play and maybe that'll work. Thank you

Xperia Gamer said:
Well try flashing a r800i firmware and use the bootloader unlock method in flashtool. I have an r800at with an unlocked bootloader but I don't specifically know what I did. If my method doesn't work pm me and I'll tell you what I did since I got my play and maybe that'll work. Thank you
Click to expand...
Click to collapse
I also have an Xperia play R800at
I tried what you said and it doesn't work. I have NXT light edition flashed right now. But I want to add the doom kernel but I need to unlock the bootloader. I really would appreciate any help.

tjhooker73 said:
I also have an Xperia play R800at
I tried what you said and it doesn't work. I have NXT light edition flashed right now. But I want to add the doom kernel but I need to unlock the bootloader. I really would appreciate any help.
Click to expand...
Click to collapse
My number is r800at 12w13 and I'm running a r800i with gin2jellybean but I want the real thing

The Testpoint method worked on my R800at no problem

216Monster said:
The Testpoint method worked on my R800at no problem
Click to expand...
Click to collapse
Whenever I type in the number to check bootloader it won't let me, I type the number in and after the last sign it goes away, I can't press call and check

Joeyxc said:
Whenever I type in the number to check bootloader it won't let me, I type the number in and after the last sign it goes away, I can't press call and check
Click to expand...
Click to collapse
Sometimes you cant enter the ServiceMenu.apk on certain roms. However, Did you try on Sony's site anyway ? Just remember you dont add the last digit on the Imei, only the first 14 I believe. And the Testpoint method works even without the bootloader saying unlockable under the service menu.

OP did you ever succeed in unlocking your bootloader?

Sony Xperia S Bootloader unlock Problem

Hi all,
I've got the Sony Xperia S and unlocked the bootloader and rooted it once and flashed it with the AOKP, but that didn't work, so I tried the Cyanogenmod 10.0 (Jelly Bean). In summary I think it was the wrong Combination of kernel and custom rom, because it didnt boot anymore and got stuck at the logo.
So I closed the bootloader again and installed the official stock rom from Sony, and all got fine, luckily.
With some more reading into right forums and better knowledge I got the right custom rom and kernel and tried to unlock the bootloader again, but suddenly it didnt work.
Message: Failed (remote: oem unlock 0xF (und noch mehr F) )
I did all with fastboot and the right adb drivers, the phone is installed correctly.
Yesterday I asked for my problem in a shop and the guy said, that the bootloader of any Sony device would close completely, if the (right or wrong) unlock code is used for too many times (like the limit of 10 times).
If he's right, I've got a big problem. But can't I open it with an alternatvie method? Or is there just any mistake?
Thanks for any answer
Chriszo

i dont know, but ive already relocked and unlocked many times without error ,
try to do it again and be sure to input the correct 0xKEY

CM10 contains it's own kernel so could never be a wrong combination of rom and kernel. Did you actually unlock the bootloader or just root the phone? Sounds like your bootloader was locked and you were trying to flash still
Sent from my 4.2.2 Xperia S via Tapatalk

Thanks for the answers.
I don't still know what constellation I really tried to instal the kernel and firmware, but I think it was an advanced stock kernel and then the firmware of the aokp. After that I tried the Cyanogenmod, but the device just didnt boot, there was only the logo.
I remember to have taken the kernel named ics17.elf and the advanced stock kernel with the official 4.0.55 build number.
The the device was rooted and the "sd card" was not wiped, but the data of the apps were deleted.
So the bootloader was open because the kernel can't be flashed with a locked bootloader.
After that I flashed the aokp and then the cyanogen mod.
Because of no booting I relocked the bootloader and installed the official firmware from sony.
Since then I try to unlock the bootloader with this damn error

I try to unlock with another computer. Maybe it work and its a simple solution. To unlock my bootloader i need to use my wife´s laptop.... i try in my compputer many times, install drivers, uninstall, and a lot of tricks but fastboot give me "error" all the times... lol

I just chatted and called with the Sony support (nice to hear great english at the phone ) and again got to hear, that they aren't able or allowed to give any information about the bootloader because of the possibility to loose the warranty of the phone.
I dont know really where my problem is but I think the code is not working any more, although I cant imagine of that
Is there any other way to do that? Or do I just do a stupid mistake ???
Thanks
Chris

Chriszo said:
I just chatted and called with the Sony support (nice to hear great english at the phone ) and again got to hear, that they aren't able or allowed to give any information about the bootloader because of the possibility to loose the warranty of the phone.
I dont know really where my problem is but I think the code is not working any more, although I cant imagine of that
Is there any other way to do that? Or do I just do a stupid mistake ???
Thanks
Chris
Click to expand...
Click to collapse
No no no!
Another guy on xda did it with FlashTool on locked bootloader. I was able to do it until the logo...
Apparently you only can flash roms I think, not?
Anyway Sony supports Open Developer Community as well, they give you info about bootloader here:
unlockbootloader.sonymobile[dot]com

No, I cant flash any rom, therefore I need an unlocked bl. And the stock rom from sony isnt available in the internet, just with the Sony-mobile-update-service.
Well, of course I tried the way Sony dicribes on this webside, as explained below -.-

Got the solution ??
Hey I have the same exact problem and i did the same things as you did ... did get a solution?? please inform me if you did.....

[Q] A way to unlock the bootloader?

i heard that it isn't possible to unlock the bootloader after the date 12w11.. mine is built in 12w36 so no way to unlock the bootloader.
if i use this video (unlocking via testpoint) it works? Because in description is standing if there is standing bootloader unlock allowed: no you have to root it at first!?
mine is rooted and there is still standing no so can i unlock my phone with testpoint!?
A friend has the xperia arc (lt15i) and a guy from Handybörse (so it's called in germany) unlocked his bootloader but at phone were standing 12w24 !?
i dont know how he unlocked it but it works and before there were standing no and now there is standing yes??
So i can unlock my lt18i with this video (sorry its in german but i think everybody know what this programm is and what it means)??
Thank you guys
Hope for fast answers!!
http://www.youtube.com/watch?v=anztorUlj2Y

Phone after 12W11 can be unlocked via official method only, cannot be unlocked via testpoint.
僕のLT18iから送られてきた

ok, but mine is 12w36 and i cannot unlock by official method..
so if i cancle the sim/netlock it is able to unlock it?
because i have bought my smartphone by 3 (provider in austria) and there is a branding and sim/netlock.

slimy44 said:
ok, but mine is 12w36 and i cannot unlock by official method..
so if i cancle the sim/netlock it is able to unlock it?
because i have bought my smartphone by 3 (provider in austria) and there is a branding and sim/netlock.
Click to expand...
Click to collapse
No, you are one of the unlucky ones, who can not unlock bootloader at all.
Removing sim-lock/branding does not allow you to unlock your phone, because fastboot is disabled and only way to enable is via test point method, which is impossible at the moment for the phones manufactured 12W11.

ohhhhhh...
but it worked at the arc from a friend...
there was standing unlock allowed no and he disabled sim/netlock and there stand bootloader unlock allowed yes..
manufactor at 12w14 :/
so i dont know

slimy44 said:
ohhhhhh...
but it worked at the arc from a friend...
there was standing unlock allowed no and he disabled sim/netlock and there stand bootloader unlock allowed yes..
manufactor at 12w14 :/
so i dont know
Click to expand...
Click to collapse
Mine is also after 12w11 and I unlocked official but I had a badblock @Sahaab also couldn't unlock his bootloader so dude face we are stuck with a locked bootloader if you want a newer android version buy a more recent phone
Sent from my LT18i using xda app-developers app

the bootloader isnt the problem. but i want to flash any kernel to overclock my phone. but i think this isnt possible on my device so ill forget it. i dont want a better android version. i only want to use my gingerbread roms faster and use all of them. thats why..
im happy enough if i can flash kernel

But to flash custom kernel, you need to unlock your boot loader, which is impossible unless you get rid of the carrier lock.
僕のLT18iから送られてきた

Unlock Bootloader in Xperia arc S when says "bootloader unlock allowed: NO"

Hi everyone,
maybe this is a wrong place to post this but im getting desperate.
How can i unlock my bootloader (xperia arc s). But the major problema is when i go to details menu it says this:
bootloader unlock allowed - no
And as far as i search all people says i cant unlock it....
If someone can help me i really aprreciate. or at least tell me some good room for my phone.
I need to give it a new life. Start to close and reboot very often... and right now i dont whant to spend money in other device
Thank you all for the support.

As it says - you are not allowed to unlock the bootloader AFAIK
If you try to attempt the usual unlock bootloader, you'll get hard brick
Sent from my C6903 using Tapatalk

thanks
rezaswandira said:
As it says - you are not allowed to unlock the bootloader AFAIK
If you try to attempt the usual unlock bootloader, you'll get hard brick
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
So basicly im stuck with the phone as it is? I cant install good rooms or whatsoever? what a shame :/
Really appreciate your feedback.
thanks.

You can root your phone and install some roms with the ability to install on a locked bootloader - but most of them are GB or ICS. If youre looking for JB or KK you're out of luck
Sent from my C6903 using Tapatalk

Search,there's ROMs available for locked bootloader