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Relock Sony bootloader

in Android, Sony, Tutorials
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There are cases when you must relock your device bootloader in order to use your warranty. Otherwise, it can be rejected because of modifications made by user. In this tutorial we’ll show you how to bring back any Sony device bootloader to its factory state. Need to mention, that relock process is far more simple than unlocking bootloader.

Warning: All the information stored in internal memory won’t be deleted, but for safety reasons it’s still recommended to backup your data to device microSD card or PC before starting this tutorial. Otherwise you might lose everything that’s important for you.

Tutorial:

  1. Download this Flashtool to PC.
  2. Launch it and click BLU button.Flashtool BLU
  3. Boot Sony into fastboot mode: turn off the device, hold Volume Up or Back button (depending on the model) and connect it to PC via USB cable. Release button after blue light appears on device.Sony fastboot mode
  4. On the popup window choose Relock button.Flashtool relock
  5. After relock process is complete, disconnect Sony from USB.
  6. Just to make sure that bootloader is locked, open dialer and type *#*#7378423#*#* then go to Service info/Configuration/Rooting Status. If you see „Bootloader unlock allowed: Yes“, this means that bootloader is successfully locked.

Post Views: 13,195
Tags: bootloader lock tool downloadbootloader relock tool free downloadeasiest way to relock bootloader on android devicehow to check bootloader status on Sonyhow to check if bootloader locked on Sony devicehow to relock sony bootloaderSony bootloader relock tutorial
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Comments 26

  1. Ru is my money buu says:
    3 years ago

    ive got the same problem on xperia xa 2 ultra

    Reply
  2. Oli says:
    3 years ago

    after flashing the wrong partition, most probably ( during flashing I got error that storage/ memory was full…. I tried to restore the phone with Sony PC Companion but I can’t use that because my bootloader is locked. I followed the instructions to relock the boot loader but I get stuck at this level :

    Phone is ready for flashmode operations
    sending read ta…
    WARN Unable to read TA unit 2226 error -22
    bla bla
    WARN Your device cannot be relocked

    PS : it’s a Sony XZ2 Compact

    Thx.

    Reply
    • Admin says:
      3 years ago

      Hi Oli,

      Did you successfully boot into fastboot mode with blue light indicator?

      Reply
  3. ralkeon says:
    3 years ago

    Hi I was trying to relock a Xperia 10 plus, someone had luck with it?

    I get “WARN – your device cannot be relocked” too.

    Reply
    • Anirudh says:
      1 year ago

      I am using Sony Xperia Xz2 and getting error while implementing through adb and while using flash tool it says your device cannot be relocked.???

      Reply
  4. Vasja Imelik says:
    4 years ago

    Flasftool says that my my phone can’t be relocked:S It’s Xperia XA2
    I get WARN – Your device cannot be relocked

    Flashtool version 0.9.26.0
    Using 64bit WIN 10

    Reply
    • Vogels says:
      3 years ago

      I also try to re-lock the Xperia XA2 with flashtool 0.9.26.0 on Win10, 64Bit, Java 13, and get the same warning “Your device cannot be relocked”, before I get another warning which says “Unable to read TA unit 2226, error = 22 (Hex unit value 000008B2)

      Reply
      • Admin says:
        3 years ago

        Hello Vogels,

        This method won’t work for you. Xperia XA2 is kind a new model that needs to wait for another solution in re-locking bootloader.

        Reply
  5. Raul says:
    4 years ago

    My XA2 Ultra didn’t relocked the bootloader.
    Flashtool says it can’t be relocked.
    Bummer.

    Reply
  6. Archie says:
    4 years ago

    phone plugged in and it says it is connected in fastboot on the console window in the program, however, the popup never appeared after I plugged my phone in

    Reply
    • Admin says:
      4 years ago

      Hello Archie,

      What device are you using?

      Reply
    • PIXEL says:
      4 years ago

      You need to reboot to flashmode NOT in fastboot (hold DOWN key then plug the phone) then click on BLU button in fashtool and choose your device. Click relock done.

      Reply
  7. alex says:
    4 years ago

    i connect my xa1 and get error – device connected in flash mode but driver too old

    Reply
    • Admin says:
      4 years ago

      Then renew your driver

      Reply
  8. williepre says:
    5 years ago

    Pitty, I am unble to relock the bootloader on my Sony Xperia XA2.

    Reply
    • Admin says:
      5 years ago

      What kind of error you get?

      Reply
      • itmasen1 says:
        4 years ago

        it dosn’t work on my XA2 PLUS DUAL

        Reply
        • Admin says:
          4 years ago

          What kind of error did you get and in which step?

          Reply
          • ITMASEN1 says:
            4 years ago

            in my XA2 PLUS , flashtool ask to press VOLUME DOWN , that in mode FLASHMODE first.

  9. Seafrog says:
    5 years ago

    after relock i can’t switch on my phone, then i go unlock again and can boot my phone

    Reply
    • Admin says:
      5 years ago

      Hi,

      What king of error did you get while trying to boot your device after relock?

      Reply
  10. Darshan says:
    5 years ago

    the process work fine but my device didnt locked. i did all process even flashtool give me a message that your device is re lock but when i check it was unlock only

    Reply
    • Admin says:
      5 years ago

      Hello Darshan,

      Thanks for your feedback.
      Did you checked you bootloader status on device boot screen or using some kind of software?

      Reply
  11. Tyler says:
    6 years ago

    Nothing happens after I plug in my device and the blue light appears. There’s no prompt to relock my phone. Can you help me resolve this?

    Reply
    • Admin says:
      6 years ago

      Hello Tyler,

      You mean after connecting device into PC the popup window doesn’t appear?

      Reply
      • dante21 says:
        4 years ago

        it doesn’t appear for me too
        i am using sony xperia xz premium

        Reply

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