[GUIDE][WINDOWS] Bootloader Unlock & Relock, Drivers, Magisk rooting, Firmware and GSI ROM flashing without TWRP

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Introducing this Guide

Hello there and welcome to My Guide for Your Xperia Smartphone. This Guide will walk with You thru the whole Process of installing Drivers, getting an unlock Key for Your Bootloader, rooting with Magisk and even flashing GSI Custom ROMs up to re-locking Your Bootloader and re-flashing Stock for the total Factory Reset. This Thread/Guide is not meant as Wiki n'or will it teach You about Android at all. Inform Yourself using Google to enjoy the total Freedom and Customization of Android... If You can't solve Problems Yourself, by communicating and research, don't touch Your Bootloader!
IMPORTANT:
2020+ Xperias are using fastbootd, and equivalent to fastboot which runs in Userspace (Same as Recoveries).
You can access Your Recovery on Your Xperia by holding VolumeDown (-) & the Powerbutton (Your Device needs to be turned off before ofc). Release the Powerbutton after the Display turned on and hold VolumeDown (-) until You see the Recovery Screen. From there, You can enter fastbootd and fastboot. Labled as "Fastboot" for fastbootd and "Bootloader" which is the old fastboot. You can flash Kernels, Recoveries and other stuff from fastboot. Everything else like System Images (GSIs for example), Product Images, System_ext Images and any Userspace stuff has to be flashed from fastbootd. 2019 Xperias are still using fastboot only...
Fastboot and Fastbootd has nothing to do with SONYs Flashmode on Xperias!


INDEX:
  1. Requirements
  2. Installing Drivers
  3. Firmware Flashing
  4. Bootloader Unlocking & Magisk Root
  5. GSI ROM flashing with Fastboot (Optional)
  6. Bootloader Re-Locking (TheWayBack)
  7. Firmware Restoring after Re-Locking

1. Requirements:
  • Read! Inform Yourself about the Tools You use...
  • Xperia Basics:
    Your Device is turned Off...
    Blue LED=Fastboot (Hold VolumeUp (+) & Connect to USB)
    Green LED=Flashmode (Hold VoumeDown (-) & Connect to USB)
  • Windows 10/11 for Firmware flashing & downloading
  • Xperia Bootloader Unlock Key (From HERE)
  • Platform Tools alias ADB and Fastboot (From HERE)
  • Fastboot and Flashmode Drivers (From HERE and HERE)
  • EMMA for Firmware Updates (From HERE)
  • XperiFirm for Firmware Downloads (From XDA)
  • Unsin to extract the Kernel .sin from XperiFirm (From XDA)
  • Magisk Manager to patch the extracted Kernel .sin (From GitHub)
  • A working Android System for the Magisk Kernel patching
  • GSI & vbmeta Image (From Google) (Optional)
  • A Backup of Your Internal Devices Storage (Optional)


2. Installing Drivers:
  1. Download the Drivers from the Links above and extract them
  2. Install the downloaded and extracted Drivers by right clicking on the ***.inf Files "Install"


3. Flashing Firmwares with EMMA:
  1. Download EMMA and install it
  2. Start EMMA and connect Your Device to USB (Flashmode)

3.1. Downloading Firmwares with XperiFirm:
  1. Download and extract XperiFirm from the link above
  2. Run XperiFirm and Download the right Firmware for Your Device


4. Bootloader Unlocking and Magisk Root:

Note: Since You are going to unlock Your Bootloader, You may surely want to get Root. So let's start with Magisk or it will take more Time afterwards...

  1. Download UnSin from the link above and extract it somewhere
  2. Download the "Platform Tools" from Google and extract it to the root of Your main Windows Drive
  3. Download and install the Magisk Manager on Your Android Device
  4. Extract the File boot_********.sin (60MB+ File) with the Unsin Exe (Drag and drop the Image on the Exe)
  5. You will get a .img File which You can patch now with the Magisk Manager on Your Android Device
  6. Open the Magisk Manager and Install Magisk by selecting the Image File You just got from UnSin
  7. Copy the magisk_patched.img in /download from Your Device to the Platform Tools Folder
  8. Grab Your Device again, go to "About Phone" in the Settings and tap several Times on the build Version
  9. Go now to the Developer Settings under "System" and enable "OEM-Unlock" and "USB-Debugging"
  10. Use now the Platform Tools with this Commands (In Powershell):
  11. Type now (Step by Step):
    Code:
    cd\
    cd platform-tools
    Note: To use the Platform Tools Folder as environment for Fastboot and ADB. Or hold Shift and Make a right Click in the Platform Tools Folder to open the Command prompt there...

  12. Type now:
    Code:
    adb reboot bootloader
    You will get a prompt on Your Xperia Device. Your Device will Reboot afterwards...

  13. Now Your Bootloader Unlock Code:
    Code:
    fastboot oem unlock 0xYOURKEY

  14. Wait for it... And type now:
    Code:
    fastboot reboot

  15. Wait for Your Device to Wipe and Start. Once in the Android System, turn Your Device off without USB Connected

  16. Press and hold now the VolumeUp (+) Button while connecting to USB to enable the fastboot Mode

  17. Continue with flashing the Images for Root (Step by Step):
    Code:
    fastboot flash boot_a magisk_patched.img
    fastboot flash boot_b magisk_patched.img

  18. Wipe and Reboot:
  19. Code:
    fastboot -w
    fastboot reboot
    Note: Your are unlocked and rooted now! Enjoy Your Unleashed Device :)



5. GSI flashing with Fastboot:

Note: GSI ROMs can be found around the Web. Like here...
Not all GSIs require the vbmeta change. You can use all GSIs that are made for ARM64 + A/B Devices. Play around. Systems can't damage Your Device since You keep the Stock Vendor & Kernel! You can use any Android Version! Don't forget to make backups if needed. You are going to Format Your Device!

  • Download a GSI Zip from Google
  • Extract the system.img and the vbmeta.img to Your Platform-Tools
  • Connect Your Device in Fastboot Mode and use Fastboot with:
    (On 2020+ Xperias run: "fastboot reboot fastboot" first after You booted into fastboot)
    Code:
    fastboot flash system_a system.img
    fastboot flash system_b system.img
    [Optional] fastboot --disable-verity --disable-verification flash vbmeta_a vbmeta.img
    [Optional] fastboot --disable-verity --disable-verification flash vbmeta_b vbmeta.img
    fastboot -w (This does Format Your Device and is needed everytime You change the GSI!)
    fastboot reboot


6. Bootloader Re-Lock:
  • Flash the latest Firmware for Your Device with EMMA
  • Erase all Userdata before You continue (like with fastboot -w or via Recovery)
  • Just go into Fastboot mode and type in the command prompt (like before in this Guide):
Code:
fastboot oem lock
  • Wait for Your Device and disconnect it from USB
  • Done... Continue with Step 7.
7. Firmware Restoring after Re-Locking:
  • Download and Install the "Xperia Companion" from SONY
  • Open the Xperia Companion and select Software Repair
  • Select that Your Device can't get recognized (or is a Smartwatch 3 lol)
  • Go to the next Page and select the Xperia Smartphone Option
  • Continue and wait for the Initialization
  • Press and hold Volume DOWN while connecting to USB (You will see the Green Flashmode LED again)
Continue once Your Device gets recognized and let the Xperia Companion do his work...
Done. Your Bootloader is locked again and almost all of Your DRMs are restored.



That helped? Leave a Thanks! <3
Donations are actually also really welcome!


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Last edited:

kelly669

New member
Aug 17, 2016
3
0
Metz
Hello,

I'm going into boot loop when I'm trying this :

Code:
fastboot flash boot_a magisk_patched.img
fastboot flash boot_b magisk_patched.img
fastboot continue

I have downloaded your img for Xperia 1

Can you help please ?
 
Last edited:

kelly669

New member
Aug 17, 2016
3
0
Metz
After multiple tentative your image was woking :)
But when I install your module in Magisk and restart, I get Pixel Launcher Stopped message (with rest pixel laucher or go to info) and I can do nothting : the message appears every time I click somewhere.
Thanks
 

daphix

Senior Member
Mar 13, 2009
50
7
After multiple tentative your image was woking :)
But when I install your module in Magisk and restart, I get Pixel Launcher Stopped message (with rest pixel laucher or go to info) and I can do nothting : the message appears every time I click somewhere.
Thanks

when you say "module" what you reffer? pixel launcher or boot image? it's seems that the author posted here only boot image.

Is bettwer to build your own image instead to use one build by others;

The pixel launcher problem may be from not installing proper magisk module; check download section in magisk for necessary modules and also search on forums for pixel launcher prerequisites.
 
Last edited:
After multiple tentative your image was woking :)
But when I install your module in Magisk and restart, I get Pixel Launcher Stopped message (with rest pixel laucher or go to info) and I can do nothting : the message appears every time I click somewhere.
Thanks
Thats due to the Gesture Navigation. Please enable 3 Button Navigation To fix it... :angel:
when you say "module" what you reffer? pixel launcher or boot image? it's seems that the author posted here only boot image.

Is bettwer to build your own image instead to use one build by others;

The pixel launcher problem may be from not installing proper magisk module; check download section in magisk for necessary modules and also search on forums for pixel launcher prerequisites.
It was about My Work. There are No other Modules for the Pixel Launcher...

Since My Threads got moved from the Development Section am i No longer contributing Images Myself. Thanks to XDA and the Moderators!
 

kac123ige

Member
Oct 3, 2010
12
0
Attempting to flash the vbmeta.img I have this problem:
unknown option fastboot --disable-verity
Any idea why fastboot can't figure this command? adb version 30.0.5
Also, what exactly is the reason to flash the vbmeta.img? Is this to allow the phone to boot with the patched image..?
I was still able to boot into android but I can't confirm if the devices is rooted or not.. all programs just hang with no confirmation if root access is granted or denied...
 

OutOfSync

New member
Apr 29, 2007
1
0
Sony Xperia 1
Thank you @Miustone, your post has been a helpful reference. Some things change over time so it's good to have this guide that is current.

In your guide, I have been looking at the Flashing Firmwares and re-locking the Bootloader... section.
If You want to relock Your Bootloader...
-Just go into fastboot mode any type in the command prompt (like before in this Guide):
Code:
cd\
cd platform-tools
fastboot oem lock
-Wait for Your Device and disconnect it from USB
-Download and Install the "Xperia Companion" from SONY
-Open the Xperia Companion and select Software Repair
-Select that Your Device can't get recognized (or is a Smartwatch 3 lol)
-Go to the next Page and select the Xperia Smartphone Option
-Continue and wait for the Initialization
-Press and hold Volume DOWN while connecting to USB (You will see the Green Flashmode LED again)
-Continue once Your Device gets recognized and let the Xperia Companion do his work...

Done. Your Bootloader is locked again and most of Your DRMs are restored. But please Note, that unlocking Your Bootloader erases Your unique Device Key FOREVER. That will flag Your Device as "it was unlocked". This can be checked by SONY and everyone else who has this Device in his Hands... (SONY knows it anyways).

Please can you advise, confirm that while rooted with Magisk (v23.0), I can relock the bootloader so as to be able to get Sony OTA updates for my Xperia 1?

I had to download firmware with XperiFirm anyway, to get the boot img for Magisk to patch. And because it is newer firmware I just went and flashed it - also because I needed to fix the broken camera/torch caused by rooting with Magisk. So now everything is working again.

So I lose root but I can just root again with Magisk. At that point can I relock the bootloader so that I can receive OTAs, and still be rooted?
 
Last edited:
Thank you @Miustone, your post has been a helpful reference. Some things change over time so it's good to have this guide that is current.

In your guide, I have been looking at the Flashing Firmwares and re-locking the Bootloader... section.


Please can you advise, confirm that while rooted with Magisk (v23.0), I can relock the bootloader so as to be able to get Sony OTA updates for my Xperia 1?

I had to download firmware with XperiFirm anyway, to get the boot img for Magisk to patch. And because it is newer firmware I just went and flashed it - also because I needed to fix the broken camera/torch caused by rooting with Magisk. So now everything is working again.

So I lose root but I can just root again with Magisk. At that point can I relock the bootloader so that I can receive OTAs, and still be rooted?
You need to choose.
Unlocked = Magisk/Root, Freedom, Control
Locked = No Magisk/Root, Freedom, Control
I do also recommend to wait for Pixel Experience. It will come soon with Mainline Kernels for many Xperias... Including OTAs 😌
 

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  • 10

    Introducing this Guide

    Hello there and welcome to My Guide for Your Xperia Smartphone. This Guide will walk with You thru the whole Process of installing Drivers, getting an unlock Key for Your Bootloader, rooting with Magisk and even flashing GSI Custom ROMs up to re-locking Your Bootloader and re-flashing Stock for the total Factory Reset. This Thread/Guide is not meant as Wiki n'or will it teach You about Android at all. Inform Yourself using Google to enjoy the total Freedom and Customization of Android... If You can't solve Problems Yourself, by communicating and research, don't touch Your Bootloader!
    IMPORTANT:
    2020+ Xperias are using fastbootd, and equivalent to fastboot which runs in Userspace (Same as Recoveries).
    You can access Your Recovery on Your Xperia by holding VolumeDown (-) & the Powerbutton (Your Device needs to be turned off before ofc). Release the Powerbutton after the Display turned on and hold VolumeDown (-) until You see the Recovery Screen. From there, You can enter fastbootd and fastboot. Labled as "Fastboot" for fastbootd and "Bootloader" which is the old fastboot. You can flash Kernels, Recoveries and other stuff from fastboot. Everything else like System Images (GSIs for example), Product Images, System_ext Images and any Userspace stuff has to be flashed from fastbootd. 2019 Xperias are still using fastboot only...
    Fastboot and Fastbootd has nothing to do with SONYs Flashmode on Xperias!


    INDEX:
    1. Requirements
    2. Installing Drivers
    3. Firmware Flashing
    4. Bootloader Unlocking & Magisk Root
    5. GSI ROM flashing with Fastboot (Optional)
    6. Bootloader Re-Locking (TheWayBack)
    7. Firmware Restoring after Re-Locking

    1. Requirements:
    • Read! Inform Yourself about the Tools You use...
    • Xperia Basics:
      Your Device is turned Off...
      Blue LED=Fastboot (Hold VolumeUp (+) & Connect to USB)
      Green LED=Flashmode (Hold VoumeDown (-) & Connect to USB)
    • Windows 10/11 for Firmware flashing & downloading
    • Xperia Bootloader Unlock Key (From HERE)
    • Platform Tools alias ADB and Fastboot (From HERE)
    • Fastboot and Flashmode Drivers (From HERE and HERE)
    • EMMA for Firmware Updates (From HERE)
    • XperiFirm for Firmware Downloads (From XDA)
    • Unsin to extract the Kernel .sin from XperiFirm (From XDA)
    • Magisk Manager to patch the extracted Kernel .sin (From GitHub)
    • A working Android System for the Magisk Kernel patching
    • GSI & vbmeta Image (From Google) (Optional)
    • A Backup of Your Internal Devices Storage (Optional)


    2. Installing Drivers:
    1. Download the Drivers from the Links above and extract them
    2. Install the downloaded and extracted Drivers by right clicking on the ***.inf Files "Install"


    3. Flashing Firmwares with EMMA:
    1. Download EMMA and install it
    2. Start EMMA and connect Your Device to USB (Flashmode)

    3.1. Downloading Firmwares with XperiFirm:
    1. Download and extract XperiFirm from the link above
    2. Run XperiFirm and Download the right Firmware for Your Device


    4. Bootloader Unlocking and Magisk Root:

    Note: Since You are going to unlock Your Bootloader, You may surely want to get Root. So let's start with Magisk or it will take more Time afterwards...

    1. Download UnSin from the link above and extract it somewhere
    2. Download the "Platform Tools" from Google and extract it to the root of Your main Windows Drive
    3. Download and install the Magisk Manager on Your Android Device
    4. Extract the File boot_********.sin (60MB+ File) with the Unsin Exe (Drag and drop the Image on the Exe)
    5. You will get a .img File which You can patch now with the Magisk Manager on Your Android Device
    6. Open the Magisk Manager and Install Magisk by selecting the Image File You just got from UnSin
    7. Copy the magisk_patched.img in /download from Your Device to the Platform Tools Folder
    8. Grab Your Device again, go to "About Phone" in the Settings and tap several Times on the build Version
    9. Go now to the Developer Settings under "System" and enable "OEM-Unlock" and "USB-Debugging"
    10. Use now the Platform Tools with this Commands (In Powershell):
    11. Type now (Step by Step):
      Code:
      cd\
      cd platform-tools
      Note: To use the Platform Tools Folder as environment for Fastboot and ADB. Or hold Shift and Make a right Click in the Platform Tools Folder to open the Command prompt there...

    12. Type now:
      Code:
      adb reboot bootloader
      You will get a prompt on Your Xperia Device. Your Device will Reboot afterwards...

    13. Now Your Bootloader Unlock Code:
      Code:
      fastboot oem unlock 0xYOURKEY

    14. Wait for it... And type now:
      Code:
      fastboot reboot

    15. Wait for Your Device to Wipe and Start. Once in the Android System, turn Your Device off without USB Connected

    16. Press and hold now the VolumeUp (+) Button while connecting to USB to enable the fastboot Mode

    17. Continue with flashing the Images for Root (Step by Step):
      Code:
      fastboot flash boot_a magisk_patched.img
      fastboot flash boot_b magisk_patched.img

    18. Wipe and Reboot:
    19. Code:
      fastboot -w
      fastboot reboot
      Note: Your are unlocked and rooted now! Enjoy Your Unleashed Device :)



    5. GSI flashing with Fastboot:

    Note: GSI ROMs can be found around the Web. Like here...
    Not all GSIs require the vbmeta change. You can use all GSIs that are made for ARM64 + A/B Devices. Play around. Systems can't damage Your Device since You keep the Stock Vendor & Kernel! You can use any Android Version! Don't forget to make backups if needed. You are going to Format Your Device!

    • Download a GSI Zip from Google
    • Extract the system.img and the vbmeta.img to Your Platform-Tools
    • Connect Your Device in Fastboot Mode and use Fastboot with:
      (On 2020+ Xperias run: "fastboot reboot fastboot" first after You booted into fastboot)
      Code:
      fastboot flash system_a system.img
      fastboot flash system_b system.img
      [Optional] fastboot --disable-verity --disable-verification flash vbmeta_a vbmeta.img
      [Optional] fastboot --disable-verity --disable-verification flash vbmeta_b vbmeta.img
      fastboot -w (This does Format Your Device and is needed everytime You change the GSI!)
      fastboot reboot


    6. Bootloader Re-Lock:
    • Flash the latest Firmware for Your Device with EMMA
    • Erase all Userdata before You continue (like with fastboot -w or via Recovery)
    • Just go into Fastboot mode and type in the command prompt (like before in this Guide):
    Code:
    fastboot oem lock
    • Wait for Your Device and disconnect it from USB
    • Done... Continue with Step 7.
    7. Firmware Restoring after Re-Locking:
    • Download and Install the "Xperia Companion" from SONY
    • Open the Xperia Companion and select Software Repair
    • Select that Your Device can't get recognized (or is a Smartwatch 3 lol)
    • Go to the next Page and select the Xperia Smartphone Option
    • Continue and wait for the Initialization
    • Press and hold Volume DOWN while connecting to USB (You will see the Green Flashmode LED again)
    Continue once Your Device gets recognized and let the Xperia Companion do his work...
    Done. Your Bootloader is locked again and almost all of Your DRMs are restored.



    That helped? Leave a Thanks! <3
    Donations are actually also really welcome!


    BTC: 3A93fjg2KxZJEHUpBExs7rVgivfAUumQoJ
    ETH&ERC20-USDT: 0xD27860248B7E51720DDf9CA5a1f861CA1029c14A
    ERC20: 0xD27860248B7E51720DDf9CA5a1f861CA1029c14A
    2
    I was dead for a number of years, and was resurrected by a sith lord.
    🥰
    Excuse my newbnessness, Respectfully...

    Is there any particular reason we're not using TWRP? or is it just an option? or is it to do with this A/B Treble stuff? or just because it can be done without?
    lol :D

    Older Xperia like 2019 and back are using the Kernel for the Recovery. Means we always need a new Boot Image once we get Updates. We don't get updates anymore and newer Xperias have an extra partition for the Recovery. So if someone is willed to build TWRP that works with the latest Stock Firmwares it would be nice. But we don't have one yet so the only way is this Guide... Sadly
    2
    You just need to flash vbmeta if You have Issues booting Up an specific GSI. Google provides just Images for that, that we can also use on Xperias. Otherwise just flash the OEM AOSP Binaries from Sony If You want to use GSIs. They May Help on some functionality here and there...
    Thanks so much!!! On Android 12 now and it's perfect... At the moment on PE, trying others now too...
    😍
    1
    Thread Updated! Enjoy :)
    1
    I was dead for a number of years, and was resurrected by a sith lord.
    🥰
    Excuse my newbnessness, Respectfully...

    Is there any particular reason we're not using TWRP? or is it just an option? or is it to do with this A/B Treble stuff? or just because it can be done without?