locked and unlocked bootloader

e753

Senior Member
Mar 9, 2011
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I wanna share my experience with my locked bootloader.

I tried once to unlock and install a "just 4 unlocked" rom (2 roms actually) but the radio system didn't work (no phone, no wifi, no gps).

I got back by flashtools, i installed a rom 4 locked rom and i tried once more to unlock the BL. I installed CM10.1 and now everything is working perfect!!!


I got just a question 4 you: why does some xperia z has the BL locked while others unlocked?

:confused::confused::confused::confused:
 

pandaball

Inactive Recognized Developer
Oct 18, 2011
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I wanna share my experience with my locked bootloader.

I tried once to unlock and install a "just 4 unlocked" rom (2 roms actually) but the radio system didn't work (no phone, no wifi, no gps).

I got back by flashtools, i installed a rom 4 locked rom and i tried once more to unlock the BL. I installed CM10.1 and now everything is working perfect!!!


I got just a question 4 you: why does some xperia z has the BL locked while others unlocked?

:confused::confused::confused::confused:
All Xperia Zs come locked from the factory. Most can be unlocked to flash custom roms. Some are permanently locked because their carriers are iffy (to put it nicely), but those are the minority.
 

auni

Senior Member
Nov 26, 2011
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Keep Questions in the Q/A section, not in General.

And No SONY device comes with locked Bootloader always. All are locked by default from the factory. Among which some can be unlocked and some can not because the Carrier.
 
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e753

Senior Member
Mar 9, 2011
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Keep Questions in the Q/A section, not in General.

And No SONY device comes with unlocked Bootloader. All are locked by default from the factory. Among which some can be unlocked and some can not because the Carrier.
Ok, but my gadget showed "no in Service info > Configuration > Rooting Status > Bootloader unlock allowed (and in the post about unlock BL they says that if it's "no" the device cannot be unlocked).


Thank you

PS: How can i move the 3d to Q/A ?
 

auni

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Nov 26, 2011
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That is what I said.

All the Devices are locked bootloader by default.

Bootloader unlock allowed= Yes -- This means you can unlock the bootloader by following regular method.
Bootloader unlock allowed= NO -- This means you can not unlock the bootloader. Because of the Carrier issue i believe.
 
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e753

Senior Member
Mar 9, 2011
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That is what I said.

All the Devices are locked bootloader by default.

Bootloader unlock allowed= Yes -- This means you can unlock the bootloader by following regular method.
Bootloader unlock allowed= NO -- This means you can not unlock the bootloader. Because of the Carrier issue i believe.
thx i got it.

But mine showed Bootloader unlock allowed= NO but i was able to unlock it after 2 try. I think every one following my procedure might do it.
 

SXUsr

Senior Member
Jul 11, 2010
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Here =)
thx i got it.

But mine showed Bootloader unlock allowed= NO but i was able to unlock it after 2 try. I think every one following my procedure might do it.
I think you will always have been able to unlock yours, you just didn't do it right the first time.
 

MRL3GS

Senior Member
Oct 26, 2012
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So are you saying you have a locked boatloader and can install. CM10????

Sent from my C6603 using xda premium
 

G1_enthusiast

Senior Member
Oct 11, 2009
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thx i got it.

But mine showed Bootloader unlock allowed= NO but i was able to unlock it after 2 try. I think every one following my procedure might do it.
did you root it and put a different ROM on there? the status might change say no but you can still unlock it. Simply put if first time you boot up your phone and it say Unlock bootloader = NO, then dont try to unlock it. When you root and flash a different rom that status might change to yes but in reality it still a NO
 

e753

Senior Member
Mar 9, 2011
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did you root it and put a different ROM on there? the status might change say no but you can still unlock it. Simply put if first time you boot up your phone and it say Unlock bootloader = NO, then dont try to unlock it. When you root and flash a different rom that status might change to yes but in reality it still a NO
Eventually a right answer. :)

I was told the same. But i love to risk "playing" with my gadgets. So when i bought the xperia z through a carrier I saw the first time i boot up that the phone Unlock bootloader = NO (about 5 minutes after i bought it from the shop, so it was "original as the carrier made it).
I didn't care it and i tried to unlock. I installed a unlocked bootloader and rom and i had all that problems with the radio stuff . But the second time, after i recovered it by flashtool and a sw from sony (i don't remember the name) I was allowed to unlock it and install unlocked stuff. Now I am with Paranoid and I am so happy :D
 

G1_enthusiast

Senior Member
Oct 11, 2009
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Eventually a right answer. :)

I was told the same. But i love to risk "playing" with my gadgets. So when i bought the xperia z through a carrier I saw the first time i boot up that the phone Unlock bootloader = NO (about 5 minutes after i bought it from the shop, so it was "original as the carrier made it).
I didn't care it and i tried to unlock. I installed a unlocked bootloader and rom and i had all that problems with the radio stuff . But the second time, after i recovered it by flashtool and a sw from sony (i don't remember the name) I was allowed to unlock it and install unlocked stuff. Now I am with Paranoid and I am so happy :D
so you were able to unlock it even though it says no?
 

e753

Senior Member
Mar 9, 2011
295
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Really interested in this cause I am in the same situation, carrier locked with bootloader locked for good.
same here... unlock it. install all the unlocked stuff. Radio might don't work. . Get ur phone back by flashtool and sony sw (i don't rememmber the name). The sony software will say u after a while u r not able to recover the phone cuz you are using some some software that is not sony. Don't worry and install another time a rom unbranded by flashtool.

now unlock the phone again and install everything u might like :)

There is only a problem with the twrp recovery, so use only the other one
 

CoolZoneAlex

Senior Member
Apr 5, 2012
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same here... unlock it. install all the unlocked stuff. Radio might don't work. . Get ur phone back by flashtool and sony sw (i don't rememmber the name). The sony software will say u after a while u r not able to recover the phone cuz you are using some some software that is not sony. Don't worry and install another time a rom unbranded by flashtool.

now unlock the phone again and install everything u might like :)

There is only a problem with the twrp recovery, so use only the other one
Can anyone else confirm this?

Thanks!
 

javierito24

Member
Sep 5, 2010
13
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Very interesting... Im waiting the confirmation from sony to pick up my phone without cost to change the fastboot to yes, but if this is true and someone else could confirm this method il do it tonight!!!!


Enviado desde mi C6603 usando Tapatalk 2
 

fards

Inactive Recognized Developer
Nov 17, 2005
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I think if you want others to try what you've done, (and it is interesting if we can unlock bootloaders this way)

then you may want to highlight which steps you did in more detail.

Which roms did you try to flash that resorted in no radio functions?

which rom did you try to flash with flashtool? which version of flashtool as well?

Did you do anything else?
 
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