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

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norabitox

Senior Member
Dec 13, 2020
99
25
61
I think that SO-02H and and E5823 has some difference, i tried, but no sucess in load some custom ROM om my SO-02. It freezes on bootloop of the ROM. I intend to try more in the future, actually, i am using it with stock rom that is from docomo with Marshmallow and is rooted only. When you change your rom on SO-02H you can post here the name and version to help us if sucessfull. About the TA backup you you can be sure that the tool qunlock does this very well.
Thank you alemaoao
When the ordered so-02h arrives, I will try it too.
 

Zeeshoo321

Member
Nov 30, 2021
6
0
My Sony xz3 (AU) was sim unlock but I purchased this tool to unlock my bootloder to yes
I did it was successful but my network was gone. I backup. ta file and it was restored as it was but the bootloader set to No again.
I run the sim lock button again bootloader was unlock but sim not working
I now unlock the bootloader from Sony too using fastboot command and it's been unlocked
But now I have problem with flashing twrp. Img it says no file or directory, 😫
my phone has custom rom of Sony xz3 (H8416) please help
 

ki maung

Member
Dec 5, 2021
7
0
Capture.PNG
december server maintenance huft..
hope it opens soon
 

DOBRO EDET

New member
Jul 27, 2019
4
0
Feel free to use this utility also to unlock the bootloader you will need the Android SDK Platform-Tools
Generate the code from the link: https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader
Turn off your phone hold the volume up button and connect the usb cable then enter the given command "fastboot oem unlock 0x" after 0x your code after your phone will be reset to factory settings
P.S Unlocked on model SO-04J (NTT Docomo)
 

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Arrappp

Senior Member
Feb 6, 2018
76
21
Pekanbaru
Redmi Note 10 Pro
Feel free to use this utility also to unlock the bootloader you will need the Android SDK Platform-Tools
Generate the code from the link: https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader
Turn off your phone hold the volume up button and connect the usb cable then enter the given command "fastboot oem unlock 0x" after 0x your code after your phone will be reset to factory settings
P.S Unlocked on model SO-04J (NTT Docomo)
is you Bootloarder unlock allower : No ?
 

cuynu

Member
Aug 3, 2021
16
2
Xperia XZ2
Nothing way to unlock bootloader on Sony Xperia XZ2 except pay for paid "S1 Unlock Tool"?

6-7 year ago on XDA forum have S1Tool, it is made to unlock/relock bootloader of some sony ericsson products
S1tool and S1 Unlock Tool both have the same icon and interface
 

Z0rnica

Member
Nov 4, 2021
24
2
for sony xz3 sov39:

[...]

i am now using lineageos 18.1 with sim network enabled
best of luck people

how did you manage to install Lineage on that? the sov39 is not on the official support list... when I try the same with my xz2c the installation just keeps failing... did you do anything to the image?
 

deysmacro

Senior Member
Jan 6, 2012
846
190
hi
Can you share how you do it.
I have succeeded but there is no signal for the operator.
if you don't mind and are willing to help me
1- using qUnlockTool change allow unlock bootloader from no to yes
!!!! sim network may be disabled !!! but dont worry just continue step 2

2- unlock bootloader > https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader

3- using qUnlockTool > click write backup
!!! sim network restored !!!
 
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[email protected]

New member
Sep 22, 2019
3
0
Sony Xperia 1

bossnig

New member
Dec 30, 2021
1
0
Hey everyone,

I am certainly grateful that I found this post. Can confirm this tool works with the Sony Xperia Pro-I released earlier this month. Xperia takes longer to get a code from. But it does change that unlock flag from no to yes
 

hazard4bio

New member
Jan 2, 2022
1
0
Well, I tried to unlock my Z2 tablet and it failed. Apparently, my device is not supported
 

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teleshoes

Member
Jan 10, 2022
10
3
anyone try qUnlockTool.exe in wine? the UI loads ok, no idea if the usb drivers will work for fastboot/etc.

also, im trying to do this to a docomo-branded XZ2c. i see some ambiguity as to whether i can do it or not. anyone know for sure?

im still waiting on a credit to test it. been ~30 hours since i paid for it.
 

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  • 2
    What type of backup do we use when clicking write backup? The Trim Area backup or the backup of the stock rom itself?
    It's actually written in the first post. See the Important Information section.

    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 )
    1
    im still waiting on a credit to test it. been ~30 hours since i paid for it.
    Got mine after 3 x 24hrs

    They'll add a note about credentials to your order
    1
    yes, its a different username+password, will be sent later (it says so on the token website). however, even using a complete wrong un/pw my phone doesnt print anything like that message.

    btw, i am still waiting ~7 days later and getting nervous, most people say it took 1-3 days.
    1
    yes, its a different username+password, will be sent later (it says so on the token website). however, even using a complete wrong un/pw my phone doesnt print anything like that message.

    btw, i am still waiting ~7 days later and getting nervous, most people say it took 1-3 days.
    7 days! wow you are a really patient person! Guess that's what happens when they have the monopoly though....hope you'll get it soon!
    1
    I purchased a Sony X Compact on eBay. It's SIM unlocked but the rooting status says "No" for bootloader unlock. So I download this software, buy a credit and hit "SIM unlock" and there's a good chance it will change the rooting status to "Yes"? Is that correct? Just checking before I spend even more money! Also if it doesn't change the bootloader status do I get a refund? Thanks!
    that is Correct™®©. good luck!
  • 13
    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.


    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".


    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.

    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.


    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.



    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 )

    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.


    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 )

    https://kash.wetransfer.com/downloads/15785b3d5c450ddb16d681216468cd2120210616150815/acadf7


    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.



    Thread Created ( 01 February 2020 )

    Updated Thread ( 11 December 2021 )
    2
    What type of backup do we use when clicking write backup? The Trim Area backup or the backup of the stock rom itself?
    It's actually written in the first post. See the Important Information section.

    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 )
    1
    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!
    1
    may I know which update of LineageOS 18.1 for SOV39 are you using? I followed all the steps to install it but it always failed at applying the update(Error Code 28). I tried a couple of things such as using different ports and USB but to no avail. My thanks in advance.
    los 18.1-20211217-nightly-akatsuki