Develop Bugs

[Q] How to check if the bootloader is locked or unlocked?

Hello Frnds,
I need to submit my handset for housing crack issue to the SE service center.. But recently I had flashed it with the Stock ROM prepared with the help of SEUS and Flashtool. So can anyone tell me how to check my Bootloader has been unlocked or it is still locked? Because the method to flash the Stock ROM I used says that it wont unlock the bootloader.. So can somebody please tell me how can I check it? If it is unlocked then the SEUS or PC Companion will not detect it, right? Thanks..

mandarjoshiin said:
Hello Frnds,
I need to submit my handset for housing crack issue to the SE service center.. But recently I had flashed it with the Stock ROM prepared with the help of SEUS and Flashtool. So can anyone tell me how to check my Bootloader has been unlocked or it is still locked? Because the method to flash the Stock ROM I used says that it wont unlock the bootloader.. So can somebody please tell me how can I check it? If it is unlocked then the SEUS or PC Companion will not detect it, right? Thanks..
Click to expand...
Click to collapse
If you did not unlock downloader then it will be locked, if you have you can relock it just search, and DooMLorD has a thread getting back to stock, hope this helps.
Sent from my LT15i using XDA Premium App

If you unlock your bootlaoder, you will loose the DRM aplications like TrackID. So start the TrackID app and if it works, your bootloader is still locked, if it doesn't and you get some error, then it's unlocked.

Dial *#*#7378423#*#* . Then go to -> "Service Info" -> "Configuration". If there is:
Bootloader unlock allowed - Yes << this means that your Bootloader is Locked
Bootloader Unlocked - Yes << this means that your bootloader is unlocked

Thanks all.. I checked.. It is not unlocked..

and if it says "Bootloader unlock allowed: No", I guess I have to the "pay" route to get it unlocked?

robotfoodisgood said:
and if it says "Bootloader unlock allowed: No", I guess I have to the "pay" route to get it unlocked?
Click to expand...
Click to collapse
That means you have Simlock. You have to pay for simlock code for unlock and then unlock the bootloader

ZyxeLa said:
That means you have Simlock. You have to pay for simlock code for unlock and then unlock the bootloader
Click to expand...
Click to collapse
Thanks for the quick response. It is already SIM unlocked, so I guess the next step is paying for bootloader unlock?

robotfoodisgood said:
Thanks for the quick response. It is already SIM unlocked, so I guess the next step is paying for bootloader unlock?
Click to expand...
Click to collapse
No, no, bootloader unlock is official by Sony Ericsson and it's free. Go to this site and unlock your bootloader There is also Instruction

ZyxeLa said:
That means you have Simlock. You have to pay for simlock code for unlock and then unlock the bootloader
Click to expand...
Click to collapse
Wrong. SIM/network lock and bootloader are completely separate.
It will always say "Bootloader unlock allowed: Yes" even if your bootloader is unlocked. Yes or No just refers to if it can be unlocked.

I did it on my x10i and the text bootloader isnt there anywhere. so what now?

BluechipJ said:
Wrong. SIM/network lock and bootloader are completely separate.
It will always say "Bootloader unlock allowed: Yes" even if your bootloader is unlocked. Yes or No just refers to if it can be unlocked.
Click to expand...
Click to collapse
If it says bootloader unlock no can it still be unlocked using test point method ?

chiefy009 said:
If it says bootloader unlock no can it still be unlocked using test point method ?
Click to expand...
Click to collapse
well, can it?

th3discodancer said:
well, can it?
Click to expand...
Click to collapse
Yes but you need setool2 I believe, jinx13 can do it he did my arc s when it said no
Sent from my LT18i using xda premium

ZyxeLa said:
Dial *#*#7378423#*#* . Then go to -> "Service Info" -> "Configuration". If there is:
Bootloader unlock allowed - Yes << this means that your Bootloader is Locked
Bootloader Unlocked - Yes << this means that your bootloader is unlocked
Click to expand...
Click to collapse
I must confirm this. I've just unlocked bootloader on SE xperia mini pro, and before unlocking it was saying "Bootloader unlock allowed - Yes " and now after unlock it says "Bootloader Unlocked - Yes"

ZyxeLa said:
Dial *#*#7378423#*#* . Then go to -> "Service Info" -> "Configuration". If there is:
Bootloader unlock allowed - Yes << this means that your Bootloader is Locked
Bootloader Unlocked - Yes << this means that your bootloader is unlocked
Click to expand...
Click to collapse
That's totally wrong. If it says no, the only way to unlock it is paid and if it says yes, then it allows you to unlock it yourself with the test point or the official SE unlock bootloader feature using your IMEI.

Otku_znam said:
I must confirm this. I've just unlocked bootloader on SE xperia mini pro, and before unlocking it was saying "Bootloader unlock allowed - Yes " and now after unlock it says "Bootloader Unlocked - Yes"
Click to expand...
Click to collapse
odd...because after i have unlocked the bootloader, i still have Bootloader unlock allowed: yes. I have confirmed I have an unlocked bootlaoder as I am able to use fastboot.

my brother have a branded x10i. I already installed xrecovery and custom rom, when i try to reach the service menu with *#*#7378423#*#* nothing is happening. How do i know if i can unlock bl or its locked?

just boot intro bootloader mode

ZyxeLa said:
Dial *#*#7378423#*#* . Then go to -> "Service Info" -> "Configuration". If there is:
Bootloader unlock allowed - Yes << this means that your Bootloader is Locked
Bootloader Unlocked - Yes << this means that your bootloader is unlocked
Click to expand...
Click to collapse
Hi, I'm on stock SE 2.3.3 GB, rooted with xrecovery 0.3
I want to install cobrato's miui 2.3.3 (gb 2.3.7), was wondering if i need to unlock my bootloader and flash any kernel or directly go ahead with it.
I tried ur method *#*#7378423#*#* aka *#*#SERVICE#*#* and there is no lone mentioning bootloader.
Thanks

is my mobile bootloader already unlocked?

Hello Guys,
Today i was about to unlock my bootloader using SE Bootloader Unlocking v1.6(http://forum.xda-developers.com/showthread.php?t=1560613) but before doing so i used s1tool to identify my device.Here is the screenshot. Check my S1_EROM version it starts with "r" not "R".so it's alreay unlocked? How do i know(check) my mobile has bootloader unlocked?
I bought this mobile almost a year ago and it was brand new from stock.So not sure it's already have bootloader unlocked since i haven't unlocked the bootloader yet.I just want to know what's happening.Sorry if this question has already been asked as i am kin of noob(but have rooted and flashed ROMs using flashtool and CWM) and want to know what's the bootloader status.If anyone know how to check bootloader unlock staus it would be very kind to share as i am gonna unlock my bootloader and need to recheck if it's unlocked properly so that it won't brick my phone.

shoeseat said:
How do i know(check) my mobile has bootloader unlocked?
Click to expand...
Click to collapse
Try flashing a kernel is the obvious and simplest answer.
http://forum.xda-developers.com/showthread.php?t=1301877

XperienceD said:
Try flashing a kernel is the obvious and simplest answer.
http://forum.xda-developers.com/showthread.php?t=1301877
Click to expand...
Click to collapse
So if my bootloader is locked it won't let me flash custom kernel like(boot.img of cynogenmod) or it will brick my phone? You link doesn't explain anything on how to check bootloader unlock status."bootloader unlock allowed:yes" will be for those devices whose bootloader can be unlocked but it doesn't tell you if bootloader is unlocked or locked.
I simply want to unlock my bootloader.Then flash cynogenmod.I want to make sure bootloader is unlocked properly before flashing cynogenmod kernel.If flashing boot.img on bootloader locked device won't brick my phone then i am ready to go.Just need conformation on what happens if i flash custom krenel and rom in bootloader locked mobile accidentally.

shoeseat said:
So if my bootloader is locked it won't let me flash custom kernel like(boot.img of cynogenmod)
Click to expand...
Click to collapse
Correct.

shoeseat said:
So if my bootloader is locked it won't let me flash custom kernel like(boot.img of cynogenmod) or it will brick my phone? You link doesn't explain anything on how to check bootloader unlock status."bootloader unlock allowed:yes" will be for those devices whose bootloader can be unlocked but it doesn't tell you if bootloader is unlocked or locked.
I simply want to unlock my bootloader.Then flash cynogenmod.I want to make sure bootloader is unlocked properly before flashing cynogenmod kernel.If flashing boot.img on bootloader locked device won't brick my phone then i am ready to go.Just need conformation on what happens if i flash custom krenel and rom in bootloader locked mobile accidentally.
Click to expand...
Click to collapse
When your rooting status says
"Bootloader unlock allowed: yes"
Then the bootloader is locked..
If it says
"Bootloader unlocked: yes"
Then your bootloader is unlocked..
Simply dial *#*#7378423#*#*
Then find your rooting status..
And I think you should use the official way to unlock bootloader.
http://unlockbootloader.sonyericsson.com
Press thnx if I helped..
Sent from my ST18i

skb6T9 said:
When your rooting status says
"Bootloader unlock allowed: yes"
Then the bootloader is locked..
If it says
"Bootloader unlocked: yes"
Then your bootloader is unlocked..
Simply dial *#*#7378423#*#*
Then find your rooting status..
Click to expand...
Click to collapse
Mine says...Bootloader unlock allowed: yes...though my bootloaders unlocked..
@shoeseat
flashin a custom kernel on lockd bootloader wont brick ur phone...it simply wont flash...

I think shopkeeper bluffed you because bootloader isn't unlocked by default.

Gamersab said:
I think shopkeeper bluffed you because bootloader isn't unlocked by default.
Click to expand...
Click to collapse
HAhaaa unless that shopkeeper imported the phone,unlocked bootloader and flashed a kernel.Place where i live doesn't have authorized sony mobile distributors.So they import from somewhere.
My booloader was unlocked whole time after purchasing it.It was new when i bought but no sure now.Anyway i am satisfied with my purchase a year ago as i haven't got any problem till now except that famous house crack.
I have flashed Cynogenmod successfully.Thank you all for the help.You guys gives some courage for nervous guy like me who are tempting to do new things.

Bootloader Unlock Allowed - NO!!

I just check my ZL and it says Bootloader Unlock Allowed - NO
Does that mean I will never be able to unlock the bootloader and install custom ROMS? I have my phone rooted and its also SIM free if that matters. Would someone be kind enough to explain the consequences?
TIA

anirudh412 said:
I just check my ZL and it says Bootloader Unlock Allowed - NO
Does that mean I will never be able to unlock the bootloader and install custom ROMS? I have my phone rooted and its also SIM free if that matters. Would someone be kind enough to explain the consequences?
TIA
Click to expand...
Click to collapse
Don't worry mate (if initially your "BL unlock allowed" was "yes")! I read it in the XZ rooting thread that if you root with a locked BL then you might have a bug resulting into BL unlock status to not allowed. Doomlord has also posted a fix for this, i think. Have a look at this thread. Hope it helps.

Dpk1 said:
Don't worry mate (if initially your "BL unlock allowed" was "yes")! I read it in the XZ rooting thread that if you root with a locked BL then you might have a bug resulting into BL unlock status to not allowed. Doomlord has also posted a fix for this, i think. Have a look at this thread. Hope it helps.
Click to expand...
Click to collapse
The thing is, I didn't check if I was allowed to unlock my bootloader before I rooted it (banging my head against a wall as I type this). Any way to find out?
EDIT: Nevermind, I see that I have to flash it and if I had an unlockable BL, the status changes to yes, and if not, then nothing changes. However, how do I flash this seeing as how there is no CWM out yet?

AW: Bootloader Unlock Allowed - NO!!
There is CWM:
http://forum.xda-developers.com/showthread.php?p=39157612
But just for unlocked bootloader...

CWM for locked bootloader would be coming... krabapple is working on it...

hi mates,
if unlocking BL, i will lose BE2 & WM right? sr if this noob question was answered before

AW: Bootloader Unlock Allowed - NO!!
Yes, you loose that functionality.
And please don't ask the same question in several threads. Ask once and have patience until someone replies.

I have Xperia Z LTE C6603 with
bootloader unlock allowed:No
I Can change this to --> bootloader unlock allowed:Yes ?
as I can change it ?
Thanks.

[Q] Unlock bootloader if Allowed=No for Z1C

Hi there,
I have a network unlocked Z1C which came from o2. The bootloader unlock allowed status is No but the phone is rooted. Is there anything I can do to this to unlock it? I feel like trying CM on it
Thanks!
I have searched for answers to this but no joy...
http://forum.xda-developers.com/search.php?searchid=280903320
http://forum.xda-developers.com/search.php?searchid=280903428

Comedy- said:
Hi there,
I have a network unlocked Z1C which came from o2. The bootloader unlock allowed status is No but the phone is rooted. Is there anything I can do to this to unlock it? I feel like trying CM on it
Thanks!
I have searched for answers to this but no joy...
http://forum.xda-developers.com/search.php?searchid=280903320
http://forum.xda-developers.com/search.php?searchid=280903428
Click to expand...
Click to collapse
brilliant... ive got a z1c comping in the post today and the only reason im upgrading to it from the xperia m is so i can flash a custom kernel and get tweaking

Comedy- said:
I have a network unlocked Z1C which came from o2. The bootloader unlock allowed status is No but the phone is rooted. Is there anything I can do to this to unlock it? I feel like trying CM on it
Click to expand...
Click to collapse
If your bootloader unlock allowed status is no then you will most likely never be able to unlock that phones bootloader. I think your best bet is to contact O2 and tell them you want a phone on which the bootloader is unlockable, perhaps they can give you a special key to unlock the functionality, but I wouldn't hold my breath.
Oh and don't try CM on it, it'll just bootloop and you'll have to use SUS or PC Companion to restore a working OS.
...actually there is one hope, but it requires dismantling the phone. There is a test-point behind the battery which might enable you to put the device into a mode where it'll accept a command allowing bootloader unlock. But again, high risk, not sure if it's actually possible, easier to just sell the phone and buy an unlockable one if you want to run CM. Maybe you could even return the device, how long have you had it?

my z1c just turned up and ive got an bootloader unlock allowed :victory::victory::victory:

I have locked bootloader on EE in UK and have found that many of the tweaks I wanted can be achieved with Xposed modules. Give it a try but backup before you start.

Need a opinion by a dev
Hello there,
I was thinking about a test.
My problem is "Unlock bootloader allowed : no".
What could happen if i restore an other TA partition with "Unlock bootloader allowed : yes". I erase the old by a new one which unlockable. All i need is a TA partition build with a z1c which unlockable and the unlock code.
What do you think ?
Soory for my bad english

If you replace your ta partition it will most likely hardbrick your device.

What is a ta partition, i don't understand.
A bootloader is like a bios on motherboard.
But it is locked by a code.
The bootloader is the same on each z1c no ?

Megani said:
What is a ta partition, i don't understand.
A bootloader is like a bios on motherboard.
But it is locked by a code.
The bootloader is the same on each z1c no ?
Click to expand...
Click to collapse
Flashing another phone's TA will hard brick yours, every TA is related to the phone which comes from

mindyabiznis said:
my z1c just turned up and ive got an bootloader unlock allowed :victory::victory::victory:
Click to expand...
Click to collapse
How you done this??? I tried hundred and half methods and still CAN'T unlock damn bootloader............

Should i unlock the bootloader using sony's site?

The title says all.
http://developer.sonymobile.com/unlockbootloader/
Here is their website which allows u to unlock ur mobile's bootloader. Should i use it?

WakaFlockaHey said:
The title says all.
http://developer.sonymobile.com/unlockbootloader/
Here is their website which allows u to unlock ur mobile's bootloader. Should i use it?
Click to expand...
Click to collapse
There is no other safe way to unlock bootloader, so You will have to use that method only. Do remember to take TA Partition backup before unlocking bootloader though.