Database Info

[Q] unlock bootloader of sony xperia c

Dear Sir, Can we unlock the bootloader of the device which states rooting status as "No"?.
Hope u reply very soon, thanks in advance.

marmeak7 said:
Dear Sir, Can we unlock the bootloader of the device which states rooting status as "No"?.
Hope u reply very soon, thanks in advance.
Click to expand...
Click to collapse
For now there's no way we can unlock bootloader because our device is using mediatek chipset..unlike others Xperia device which using Qualcomm chipset..

Just let Sony unlock the bootloader in the upcoming updates. ... u will get to know this in the same above menu where the status will become yes!
Sent from my GT-I8552 using XDA Free mobile app

You can unlock unofficially
You can unofficially Unlock the bootloader of Xperia C from here
http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/

"In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.
Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked."
Its says This Msg Bro We cant UnlockBoatloader without Officially Sony Update

rockwaseem8 said:
"In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.
Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked."
Its says This Msg Bro We cant UnlockBoatloader without Officially Sony Update
Click to expand...
Click to collapse
But you can unofficially do that if you are a developer or you want to be... I got my unlocking code from the link i posted above...

iSiddharth said:
But you can unofficially do that if you are a developer or you want to be... I got my unlocking code from the link i posted above...
Click to expand...
Click to collapse
But If I can unlock my xperia C bootloader with that link it goes to sony xperia officially method and there unlock bootstatus is no so if i proceed with that i bricked my device, so any other method to unlock bootloader of xperia C

sushnimo said:
But If I can unlock my xperia C bootloader with that link it goes to sony xperia officially method and there unlock bootstatus is no so if i proceed with that i bricked my device, so any other method to unlock bootloader of xperia C
Click to expand...
Click to collapse
There are different variants of Xperia C available with different S1 boot versions. Some can unlock the bootloader and some cannot.

Unlocking bootloader imposible

Well, hello to everyone. I bought Sony Xperia Z3 and bought code to unlock it for all sim cards and it works. When i visited Sony's site for unlocking bootloader i came across this post:
In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.
Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
Well, my device cannot be unlocked because it says No..
so what can i do to unlock it?

Info
mi-smozadrani said:
Well, hello to everyone. I bought Sony Xperia Z3 and bought code to unlock it for all sim cards and it works. When i visited Sony's site for unlocking bootloader i came across this post:
In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.
Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
Well, my device cannot be unlocked because it says No..
so what can i do to unlock it?
Click to expand...
Click to collapse
it s better not to try it
it can hard-brick ur device if attempt to unlock bootloader
:good:

Geeks Empire said:
it s better not to try it
it can hard-brick ur device if attempt to unlock bootloader
:good:
Click to expand...
Click to collapse
What? Do you know what you are taking about..
Anyway, if the service menu says you cannot do it then it is impossible to unlock it.

Info
gregbradley said:
What? Do you know what you are taking about..
Anyway, if the service menu says you cannot do it then it is impossible to unlock it.
Click to expand...
Click to collapse
yeah i knew it but if user want to use some tools or something like this it can destroy the phone
:good:

i just need to know what to do to unlock it?

Why unlock it? You will lose your DRM keys if you do..

mi-smozadrani said:
i just need to know what to do to unlock it?
Click to expand...
Click to collapse
For your device it is not allowed, so you can't unlock the bootloader.
/I've read some threads about trying to unlock the bl although service says "no" on other Devices like z Ultra:
It's not impossible to unlock the bl with official method if you know your device earlier had status allowed "yes".

Sindroid said:
Why unlock it? You will lose your DRM keys if you do..
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Click to collapse
I dont care about drm keys. I want to install new custom roms on my phone. So.can.you point me to a link where i can unlock bootloader?

You cannot unlock it if it says bootloader unlock allowed: no

Sindroid said:
Why unlock it? You will lose your DRM keys if you do..
Click to expand...
Click to collapse
its necessity if you want an aosp rom .....

Stock basted Roms on most Sony devices are pretty fast and solid in my opinion no need to really unlock unless your desperate for cm

So that's it? If the bootloader can't be unlocked officially, I'm stuck on Sony roms forever?
Wouldn't bother me so much but my Z3 has a horrible bug where it doesn't work with the bluetooth in my car without rebooting first every time. Was hoping to install CM12.

Could be a hardware fault the Bluetooth

srw985 said:
I'm stuck on Sony roms forever?
Click to expand...
Click to collapse
Why did you get a Sony phone then

mickyw1980 said:
Why did you get a Sony phone then
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Click to collapse
It's not that I have any major issues with Sony roms, I'd just like to be able to flash other stuff in the future, should I want to.
I'm still going to keep the Z3, such a nice phone, nothing else really comes close to it for me yet. Maybe the M9, but I just got the Z3 for £260 from o2 and had it network unlocked, probably have been looking at least double that for the HTC.

You can still root the device and customize it. Tools like the XPosed framework are great at modifying specific parts of the ROM.
But to confirm: you're stuck. You can't unlock Sony's unlockable bootloader. I've heard of people trying to unlock it, I've never heard of a successful case.
Enjoy the phone, it's among the best available right now (imho).

Can't unlock bootloader Xperia Z3

I want to install a custom ROM and recovery on my Z3 but I can't find a way to unlock the bootloader. Even with the FlashTool it doesn't seems to work. I tried downgrading to an earlier version but everytime my phone gets bricked unless I use the last version available.
Thanks

Go to dialer. Type *#*#7378423#*#*
In service menu navigate to service info, configuration, and you will see a line that says "bootloader unlock available: yes" or "no"
If it says no then you will not be able to unlock the bootloader as it is factory locked to this state.
If it says yes then follow the Sony guide to bootloader unlocking Z3. They will email you the unlock code and details of how to proceed.

Dobsgw said:
Go to dialer. Type *#*#7378423#*#*
In service menu navigate to service info, configuration, and you will see a line that says "bootloader unlock available: yes" or "no"
If it says no then you will not be able to unlock the bootloader as it is factory locked to this state.
If it says yes then follow the Sony guide to bootloader unlocking Z3. They will email you the unlock code and details of how to proceed.
Click to expand...
Click to collapse
It says "no"... There's no way I can unlock it if it's written no ?

Pulsebox said:
It says "no"... There's no way I can unlock it if it's written no ?
Click to expand...
Click to collapse
That's correct.
Unfortunately not all devices can be unlocked and there's no way to change that status.

Dobsgw said:
That's correct.
Unfortunately not all devices can be unlocked and there's no way to change that status.
Click to expand...
Click to collapse
Thanks a lot !

Pulsebox said:
Thanks a lot !
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Click to collapse
In spain sony provide a service to take your phone and change the status to bootloader unlocked allowed to yes and is for free. I dont know if in your country sony provide this service but you can try. cheers

juanpirulo said:
In spain sony provide a service to take your phone and change the status to bootloader unlocked allowed to yes and is for free. I dont know if in your country sony provide this service but you can try. cheers
Click to expand...
Click to collapse
I'll try to contact them, thanks!

Unlocking a Japanese Xperia XZ in Australia

I just recently had to move back to Australia after a few years in Japan.
Before I left I spoke to AU (my Japanese provider) about unlocking my Xperia XZ (sov34). They advised me to use their online form, which I did. A follow up call to their help line confirmed the unlock worked.
It didn't.
Back in Australia, when I put an Australian sim card in it tells me "SIM locked by operator - no service" in the notifications bar.
Doing *#*#7378423#*#* reveals this:
The entries read
[] Network 0
[x] Network subset 10
[] Service provider 0
[] Corporate 0
[] SIM 0
Also, putting in an Aussie sim doesn't give me an option at all to enter an unlock code.
Is there anything I can do? I am willing to pay for an unlock code through a trustworthy site, as long as it will actually work. I don't want to pay and find out the phone is impossible to unlock.

So update, I decided to purchase an Unlock code from a site.
Still to recieve it, but I did notice something important.
When I put a new, no AUKddi sim card in the phone, I am given no option to input a code anywhere.
I understand that this is done by some phone companies specifically to make unlocking difficult. I am also of the understanding that I can flash the unlock screen in in some way. Is anyone willing to spare some time to show me how/provide a guide to do so?

sir
1. if your device is SIMLOCKED with Japanese network provider then ofcourse no other sim will work (even in japan). however lets assume that the device is International sim unlocked.
2. in this case if you are using SO3H version of xperia then you must flash AU firmware and try the Sim (suggestion)
3. when you say buying unlock code online... what do u mean? do u mean unlock sim code? or do u mean UNLOCK BOOTLOADER CODE ?
4. please don't unlock your device! unless you first downgrade to Android 6 and EXTRACT DRM KEYS (TA.img) ( its a SAGA if you decide to go that path i will guide you more sir)
5. you can change firmware from japan to AU only by flashtool. ( www.flashtool.net) , sony Xperia Companion may recognise your device as Japan market and flash the same firmware again!
6. please update what is your device mode, and Android version and BUILD NUMBER (sony stockrom)

YasuHamed said:
sir
1. if your device is SIMLOCKED with Japanese network provider then ofcourse no other sim will work (even in japan). however lets assume that the device is International sim unlocked.
Click to expand...
Click to collapse
Well like I mentioned, I used AU/Kddi's online form to unlock the phone, and a follow up call assured me that it was unlocked.
2. in this case if you are using SO3H version of xperia then you must flash AU firmware and try the Sim (suggestion)
Click to expand...
Click to collapse
My Xperia XZ is SOV34 if thats what you mean?
3. when you say buying unlock code online... what do u mean? do u mean unlock sim code? or do u mean UNLOCK BOOTLOADER CODE ?
Click to expand...
Click to collapse
Unlock SIM code from codes2unlock.
4. please don't unlock your device! unless you first downgrade to Android 6 and EXTRACT DRM KEYS (TA.img) ( its a SAGA if you decide to go that path i will guide you more sir)
Click to expand...
Click to collapse
Do you mean dont Bootloader Unlock?
6. please update what is your device mode, and Android version and BUILD NUMBER (sony stockrom)
Click to expand...
Click to collapse
Android Version 8.0.0, Build Number 41.3.C.1.89. How do I find Device Mode?

popculturepooka said:
Well like I mentioned, I used AU/Kddi's online form to unlock the phone, and a follow up call assured me that it was unlocked.
My Xperia XZ is SOV34 if thats what you mean?
Unlock SIM code from codes2unlock.
Do you mean dont Bootloader Unlock?
Android Version 8.0.0, Build Number 41.3.C.1.89. How do I find Device Mode?
Click to expand...
Click to collapse
1. Things are much clear now, you were trying to sim UNLOCK the device. if you have succeeded and still cant register AU sim
2. then flashing different market firmware may solve this issue.
3. you should not UNLOCK the BOOTLOADER if you are not interested in rooting the device and
3b. even when you decide that you want to unlock the bootloader then you must first downgrade to android 6 and EXTRACT the TA-xxx-xxx-xxx-xxx.img file known as DRMKEY FILE and then upgrade back to Android 8 and then unlock.
4 sorry, DEVICE modeL . F8331 or F8332 (dual / Single)

Guys, is it hard to check other forum topics of japanese phones?
It's simple - just write with Flashtool a Docomo firmware for this model (all models there have a specific country firmwares list, usually only 3 for Japan - KDDI, Docomo and somethimes Softbank). Usually Docomo immediately asks for code when inserting a foreign sim, it's some KDDI quirk that they removed or broken that function in their firmware with unlocking.
All of this is not related to bootloader - all Sony phones in Japan specifically NEVER ever unlocked on bootloader level, they completely closed their market from "open source" or there's not such strict laws like in EU. So, it's useless to even discuss such with japanese phones.
Update:
I was able succesfully flashing it with Central European firmware (less bloatware than Au) and with foreign SIM it immediately asks for Unlock Code. Only NFC not working, but it's old problem with japanese Xperias (i was able to solve it on Xperia Tablet and only by EU Wifi firmwares, no such for phones and no one tries to extract NFC from there). The problem with japanese firmwares - in Flashtool only Android 6 available, it's not flashing on Oreo phone, showing partition.sin error, so it means also that downgrade impossible. If you want working NFC you need to find japanese Android 8 firmware somewhere (like 41.3.C.1.147 from Au).

Hey, guys... I just wanna ask, what's the meaning of paramaeter at the SIM Lock status.
It say that "[x] Network subset Unlimited"
Does that mean my device it's simlock can be unlock??

Hi, I found this forum as I was looking around for a solution to unlock the bootloader of my Docomo XZ1. Is there anyone that can confirm whether or not its possible to unlock the bootloader in any way?

[CLOSED] Bootloader Unlock Allowed "No" to "Yes" is now finally possible.

Bootloader Unlock Allowed No to Yes is now finally possible
Discovered by MrCooper95
QUICK STORY OF HOW IT HAPPENED​
For years, members of Xperia users thought that if you had a SIM locked Xperia phone, you would never able to unlock the bootloader even after you get it SIM unlocked, the Bootloader Unlocked Allowed will still remain "No".
​You would have to buy a factory SIM unlocked phone instead.
For a good price, I've bought a used SIM locked Xperia 1 that has been hardlocked ( 0 unlock attempts left )
The previous owner tried to get it SIM unlocked, but the codes he used were incorrect and went over the unlock attempt limit, causing a SIM hard lock. He did not mention this when he put it up for sale.
Anyway, I looked around the internet and the found a program called QUnlock. ( S1 Network Unlock Tool )
The S1 Network Unlock Tool is free to download but you have to pay credit in order to work. About £20 ( you pay via mobile phone repair shop websites ) and then they will email you a username and password for you to connect to the S1 server in the unlock tool.
So I connected the Xperia 1 via flash mode in S1 Network Unlock Tool and it worked. My phone is now SIM unlocked after being hardlocked.
​After booting up the phone. I went into service menu to ensure that it is free from SIM hardlock, the tool worked successfully.
​but I also checked the bootloader status and it changed to "Yes".
I was suprised and amazed at the same time after all these years, we were told that changing the bootloader status No to Yes is impossible, even people told us that a permanent hard locked Xperia phone can never be reset.
Click to expand...
Click to collapse
QUESTIONS AND ANSWERS​
Q. What is the S1 Unlock Tool and what does it exactly do?
The S1 Network Unlock Tool is used by professional mobile phone repair shops and it has been around for a long time. This tool is created and only works for Xperia phones.
It is also available to be downloaded for anyone who can do it themselves at home with just a USB Cable.
This tool is used primarily to reverse a Xperia phone with a permanent SIM hard lock ( 0 unlock attempts left ) and changes it SIM unlocked.
​It can be used as a normal SIM unlocking service.
​However nobody really knew, that this tool can also change your bootloader status from "No" to "Yes".
Click to expand...
Click to collapse
Q. Can I use this tool to change my bootloader from No to Yes if my SIM is already unlocked?
So far yes, some members of Xperia users has reported back to confirm that it works.
Click to expand...
Click to collapse
​
Q. Why are some Xperia phones not allowed to have its bootloader unlocked?
Because it is originally made SIM locked to a Network Provider/Carrier. ( Factory SIM lock )
​Network Providers/Carriers restricts you unlocking your bootloader due to warranty and safety reasons.
Click to expand...
Click to collapse
Q. Does this tool directly unlock the bootloader?
The tool does not directly unlock the bootloader, it just allows you to get the bootloader unlocked.
You would still need to follow Sony's official procedure of unlocking your bootloader.
Click to expand...
Click to collapse
IMPORTANT INFORMATION​
You should always back up your Trim Area Partition (TA.img) if your Sony phone has a backup exploit.
After you have unlocked the phone using the tool, a sign file ( backup ) is created in the tool folder.
Don't delete it, keep it incase anything goes wrong. ( See warning below )
WARNING​There are reports from some users encountering a no SIM card service / detection after they have used the tool. It is evidently related ( so far ) with some of the Japanese Xperia models.
Japanese SO Xperia model ( Docomo / SoftBank )
Japanese SOV Xperia model ( KDDI )
If this happens, restore the backup and get your refund or try flashing a custom ROM or another firmware ( only if it's safe to do so for Japanese Xperia models )
Click to expand...
Click to collapse
DISCLAIMER​
I will not be responsible for any actions that you make. I am informing you that the S1 Network Unlock Tool can have consequences as it is not fully documented yet.
Please reply back with your Xperia and its model number if you have successfully unlocked your bootloader.
I will keep the thread updated, best of luck.
Click to expand...
Click to collapse
DOWNLOAD LINKS​
S1 Network Unlock Tool
Works on all Sony Xperia Models manufactured after 30/06/2014.
( Updated Support for Xperia 1 III, Xperia 5 III and Xperia 10 III )
MOD EDIT: Link Removed
Click to expand...
Click to collapse
Trusted website to buy credits
There are many websites that you can buy credits from, however some might be a scam or unreliable. This is the one that I've used and its trusted.
Please do not ask NUGSM questions anything related to Xperia bootloader unlocking, as they do not know much about it. They just provide the credentials and the tool.
MOD EDIT: Link Removed
Click to expand...
Click to collapse
Thread Created ( 01 February 2020 )
Updated Thread ( 11 December 2021 )

Interesting info, thanks for sharing. I always thought only sony could change bootloader status from unlock allowed: No to yes

Asking
Where can I buy the credit for S1tool and download the latest version S1 Tool?
I'd bought a xperia xz and found it needs to be unlocked by the tool to turn bootloader unlock allowed yes

Yes where to buy the credit?
Sent from my [device_name] using XDA-Developers Legacy app

KaBombaBoom said:
I've bought an network locked Xperia 1 on ebay after getting the Xperia 5 and found out that it was hardlocked (0 unlock attempts left).
So I've looked around the internet to find a solution and the solution is called QUnlock (S1 Network Unlock tool)
Getting the software program is free but you have to pay credit in order to work. About £20 (You pay via mobile phone repair shop websites) then they will give you username and password to connect to the S1 server.
So I did that, connect my phone into flash mode and boom my Xperia 1 is network unlocked after it's been hardlocked.
So I've curiously checked the bootloader status and surprised to find out it has changed No to Yes.
It still amazes me because all these years, we were told that it was a permanent status. Sony website so called helpers are absolutely useless and clueless.
Click to expand...
Click to collapse
Hello friend, may you let me know where to purchase the credit of s1 tool?
Sent from my [device_name] using XDA-Developers Legacy app

joseph168 said:
Hello friend, may you let me know where to purchase the credit of s1 tool?
Click to expand...
Click to collapse
NUGSM website
https://nugsm.com/product/sony-xperia-cable-unlock-0-counter-supported/

Do you know after unlock bootloader, could we flash and concert to internal firmware?

Hello. My phone is 802SO and it was SIM unlocked but bootloader locked (set to NO) I used the website provided here in this thread and as result it is now switched to YES. Thanks a lot!

TrustAugustus said:
Hello. My phone is 802SO and it was unlocked but bootloader locked (set to NO) I used the website provided here in this thread and as result it is now switched to YES. Thanks a lot!
Click to expand...
Click to collapse
Great news and glad to help you out, I wasn't so sure if this tool will only work on a SIM locked phone to unlock the bootloader. But you confirmed that it works in SIM unlocked state, so that's some good news.

TrustAugustus said:
Hello. My phone is 802SO and it was unlocked but bootloader locked (set to NO) I used the website provided here in this thread and as result it is now switched to YES. Thanks a lot!
Click to expand...
Click to collapse
hi, any idea this will work on Docomo Xperia XZ / AU Xperia X Performance ? And did you paid 23 pounds to unlock a device ?

I did pay. You can download the software anytime, however you need a valid username and password to start the process. That's what you buy from the website. Got the the information within 24 hours. Windows thinks it's virus. It's not. Just temporarily disable defender for the download folder
As for whether or not it will work for your device:.I think it would. At least that's the impression I got when I emailed customer support. No guarantees from me, however :laugh:

Ben Ling said:
hi, any idea this will work on Docomo Xperia XZ / AU Xperia X Performance ? And did you paid 23 pounds to unlock a device ?
Click to expand...
Click to collapse
Yes it should work on those devices, the tool supports devices from 2013.

Xperia Z5 bootloader status no to yes
I have got a new Xperia Z5 SOV32 a few month ago. It was SIM unlocked but bootloader status was "no". Finding this thread I have bought qunlock tool from nugsm site, Then tried it to make bootloader status no to yes. After successful work done I have checked bootloader status converted to "Yes". Now I am using Lineage OS on my Xpeia Z5. Totally amazing.......

Nice. THanks

But can you unlock the bootloader after it change from "no" to "yes" ?

MrCooper95 said:
NUGSM website
https://nugsm.com/product/sony-xperia-cable-unlock-0-counter-supported/
Click to expand...
Click to collapse
I've got the Japanese model of the Xperia X Compact, with bootloader set to "No" in the service menu. Your method totally worked, after buying the item you linked I was able to unlock the phone using the S1 tool. Bootloader unlocked now shows "Yes". Thanks!

Okay so after bootloader unlock says yes is it still unlockable though someone tried? I have been out of game though I have unlocked a few Xperia Z devices in past and as I recall the method was to enter your IMEI on official bootloader unlock page and they were to send you a code or smth for adb might be mixing up because I think my LG's had same method so my question is after entering imei on sony site they allow it automatically?

betacrypt said:
I've got the Japanese model of the Xperia X Compact, with bootloader set to "No" in the service menu. Your method totally worked, after buying the item you linked I was able to unlock the phone using the S1 tool. Bootloader unlocked now shows "Yes". Thanks!
Click to expand...
Click to collapse
@betacrypt
Can you provide a copy of the software? Have an XZs I would like to fully unlock as it is already network unlocked. Please post on Gdrive or Mega if you can.

MrCooper95 said:
I've bought an network locked Xperia 1 on ebay after getting the Xperia 5 and found out that it was hardlocked (0 unlock attempts left).
So I've looked around the internet to find a solution and the solution is called QUnlock (S1 Network Unlock tool)
Getting the software program is free but you have to pay credit in order to work. About £20 (You pay via mobile phone repair shop websites) then they will give you username and password to connect to the S1 server.
So I did that, connect my phone into flash mode and boom my Xperia 1 is network unlocked after it's been hardlocked.
So I've curiously checked the bootloader status and surprised to find out it has changed No to Yes.
It still amazes me because all these years, we were told that it was a permanent status. Sony website so called helpers are absolutely useless and clueless.
Click to expand...
Click to collapse
So this works on Simlocked phones too?

&(*) said:
So this works on Simlocked phones too?
Click to expand...
Click to collapse
https://www.reddit.com/r/SonyXperia/comments/exiyp6
The link is in my Reddit thread page.