Unable to unlock bootloader

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murtadha50

Senior Member
Sep 13, 2013
155
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I just bought the Z2 phone which is UNBRANDED and check that the BOOTLOADER can be UNLOCKED under the configuration menu. The phone is rooted which I verified through a program. Using Android 4.4.2, Build 17.1.2.A..0.314

Tried the flashtools to unlock it

Flashtools - gives me the error that the bootloader cannot be unlocked. Tells me to unplug the phone and turn it on.

Any help?
 
bluheart

bluheart

Senior Member
May 8, 2011
2,134
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Kozhikode
Try 2-3 times.
But first root with easyroot then backup the TA partition then while in root, unlock. Everything will work.

Sent from my Xperia Z2 using XDA Premium 4 mobile app
 
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Envious_Data

Envious_Data

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Oct 12, 2012
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murtadha50 said:
I just bought the Z2 phone which is UNBRANDED and check that the BOOTLOADER can be UNLOCKED under the configuration menu. The phone is rooted which I verified through a program. Using Android 4.4.2, Build 17.1.2.A..0.314

Tried the flashtools to unlock it

Flashtools - gives me the error that the bootloader cannot be unlocked. Tells me to unplug the phone and turn it on.

Any help?
Click to expand...
Click to collapse

1. install all drivers
2. run flashtool as admin
3. make sure your imei code was right
4. make sure your unlock code was right
5. try again a few times


misc. check if your bootloader is unlockable in your service menu, does it say rooting is alowed (i dont remember what menu this was in):*#*#SERVICE#*#* in your dialier
 
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M

murtadha50

Senior Member
Sep 13, 2013
155
75
Envious_Data said:
1. install all drivers
2. run flashtool as admin
3. make sure your imei code was right
4. make sure your unlock code was right
5. try again a few times


misc. check if your bootloader is unlockable in your service menu, does it say rooting is alowed (i dont remember what menu this was in):*#*#SERVICE#*#* in your dialier
Click to expand...
Click to collapse

Yes rooting is allowed

Im using flashtool only as admin not the official method and tried alot with no luck
 
M

murtadha50

Senior Member
Sep 13, 2013
155
75
Iv’e tried to unlock via flashtool as above but it tells me it cannot be officially unlocked, before doing this I checked on the phone and it says bootloader unlockable yes
 
L

linjes

Senior Member
Sep 15, 2013
169
43
You have to root first to backup TA partition (or don't haha but please do it is essentially your warranty)
Then go to the Sony Dev page to get your unlock code. You need your imei. Then, use that in fastboot(not flashtool oops). The instructions are in the Sony page. This WILL wipe your phone so you might wanna tibu stuff into your sdcard

Sent from my LG-D802
 
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M

murtadha50

Senior Member
Sep 13, 2013
155
75
linjes said:
You have to root first to backup TA partition (or don't haha but please do it is essentially your warranty)
Then go to the Sony Dev page to get your unlock code. You need your imei. Then, use that in fastboot(not flashtool oops). The instructions are in the Sony page. This WILL wipe your phone so you might wanna tibu stuff into your sdcard

Sent from my LG-D802
Click to expand...
Click to collapse

I have backuped TA

If i use the official way from sony will it be a problem if I want to relock it again for warranty purposes or if occured faults for the device?

Do Sony know that i have unlocked the bbotloader then it will void warrant even if I lock it again?
 
L

linjes

Senior Member
Sep 15, 2013
169
43
murtadha50 said:
I have backuped TA

If i use the official way from sony will it be a problem if I want to relock it again for warranty purposes or if occured faults for the device?

Do Sony know that i have unlocked the bbotloader then it will void warrant even if I lock it again?
Click to expand...
Click to collapse

No idea but I doubt it. The unlock process cannot send a notification to Sony, but I am not sure what their policy is on you obtaining the unlock code. Should be fine though :)

Sent from my LG-D802
 
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ghostofcain

ghostofcain

Senior Member
Nov 25, 2009
3,132
909
Birkenhead
Google Pixel 8
murtadha50 said:
I have backuped TA

If i use the official way from sony will it be a problem if I want to relock it again for warranty purposes or if occured faults for the device?

Do Sony know that i have unlocked the bbotloader then it will void warrant even if I lock it again?
Click to expand...
Click to collapse
I would suspect that if Sony wanted to be arses about it that they will take the obtaining an unlock code as proof it was unlocked, do you tick a box to say you accept you are voiding your warranty when you request the code? But it doesn't make a difference what method you use as both require the unlock code from Sony.
 
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    bluheart
    bluheart
    Try 2-3 times.
    But first root with easyroot then backup the TA partition then while in root, unlock. Everything will work.

    Sent from my Xperia Z2 using XDA Premium 4 mobile app
    View
    1
    Envious_Data
    Envious_Data
    murtadha50 said:
    I just bought the Z2 phone which is UNBRANDED and check that the BOOTLOADER can be UNLOCKED under the configuration menu. The phone is rooted which I verified through a program. Using Android 4.4.2, Build 17.1.2.A..0.314

    Tried the flashtools to unlock it

    Flashtools - gives me the error that the bootloader cannot be unlocked. Tells me to unplug the phone and turn it on.

    Any help?
    Click to expand...
    Click to collapse

    1. install all drivers
    2. run flashtool as admin
    3. make sure your imei code was right
    4. make sure your unlock code was right
    5. try again a few times


    misc. check if your bootloader is unlockable in your service menu, does it say rooting is alowed (i dont remember what menu this was in):*#*#SERVICE#*#* in your dialier
    View
    1
    hush66
    hush66
    You might want to try the "old-fashion" way?

    http://xdaforums.com/showthread.php?t=2440597
    View
    1
    L
    linjes
    You have to root first to backup TA partition (or don't haha but please do it is essentially your warranty)
    Then go to the Sony Dev page to get your unlock code. You need your imei. Then, use that in fastboot(not flashtool oops). The instructions are in the Sony page. This WILL wipe your phone so you might wanna tibu stuff into your sdcard

    Sent from my LG-D802
    View
    1
    L
    linjes
    murtadha50 said:
    I have backuped TA

    If i use the official way from sony will it be a problem if I want to relock it again for warranty purposes or if occured faults for the device?

    Do Sony know that i have unlocked the bbotloader then it will void warrant even if I lock it again?
    Click to expand...
    Click to collapse

    No idea but I doubt it. The unlock process cannot send a notification to Sony, but I am not sure what their policy is on you obtaining the unlock code. Should be fine though :)

    Sent from my LG-D802
    View

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