Z3+ Bootloader Unlock - Xperia Z4/Z3+ Q&A, Help & Troubleshooting

I have the single sim international version of the z3+ and it says the Bootloader is unlockable in the service menu. So the question is how do I go about getting it unlocked?
Sent from my E6553 using Tapatalk

If it's indicated as unlockable, then there's no way to unlock it.

There should be instruction on Sony's website. Unlocking bootloader doesn't do anything for you unless you know what you're doing. It doesn't give you root access but erases your TA partition where you will lose all of Sony's DRM keys.

I'm aware of what unlocking the Bootloader does. Honestly don't care about drm or warranties as I never have phone long enough to break them anyway.
Sent from my E6553 using Tapatalk

hush66 said:
If it's indicated as unlockable, then there's no way to unlock it.
Click to expand...
Click to collapse
Care to explain? Because from where I stand that comment makes less than zero sense.
Sent from my E6553 using Tapatalk

Pure+ said:
Care to explain? Because from where I stand that comment makes less than zero sense.
Sent from my E6553 using Tapatalk
Click to expand...
Click to collapse
Sorry, I may have read it wrong and replied too fast. To clear any doubts, please indicate what exactly is stated in the menu. Is it "Bootloader unlocked allowed: Yes"?
In any case, this is the Sony site to unlock your bootloader: http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/
That being said, I don't see why you would want to unlock your bootloader now. There are no custom ROMs or kernels developed for the Z3+ yet. You can't even root it.

hush66 said:
Sorry, I may have read it wrong and replied too fast. To clear any doubts, please indicate what exactly is stated in the menu. Is it "Bootloader unlocked allowed: Yes"?
In any case, this is the Sony site to unlock your bootloader: http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/
Click to expand...
Click to collapse
Yes. That is exactly what it says
Sent from my E6553 using Tapatalk

Pure+ said:
Yes. That is exactly what it says
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Click to expand...
Click to collapse
Yes, then it can be unlocked. Use the link I gave you earlier.

hush66 said:
Yes, then it can be unlocked. Use the link I gave you earlier.
Click to expand...
Click to collapse
Not seeing z3+/z4 there
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Pure+ said:
Not seeing z3+/z4 there
Sent from my E6553 using Tapatalk
Click to expand...
Click to collapse
You'll have to wait then.

Got a question
Got unlocked bootloader without possible root (5.0.2v 28.0.A.8.266 firmware E6533 (z3+ Dual)). Used flashtool before unlock and saved S1 Dump in Advanced menu. Is it possible to get DRM keys from S1 Dump and restore bootloader lock?

you should downgrade to the 251 firmware so you can flash the modded stock kernel for root access.im using imagebreaker kernel. check out zrom also

Ok pikeylfc,
I see that imagebreaker kernel is for e6553 device. Mine is e6533 (Dual sim)... I doubt if the same kernel can be used... It has different hardware.

septera said:
Ok pikeylfc,
I see that imagebreaker kernel is for e6553 device. Mine is e6533 (Dual sim)... I doubt if the same kernel can be used... It has different hardware.
Click to expand...
Click to collapse
Yes you are right I apologize

Hello.
If my terminal says: "Bootloader unlocked allowed: No", there´s no way tu unlock de bootloader?
Thanks

hush66 said:
If it's indicated as unlockable, then there's no way to unlock it.
Click to expand...
Click to collapse
Not necessarily. When you have active myXperia service, service tests will show, that bootloader is not unlockable. Try to disable myXperia (Settings -> Lockscreen and security -> Protection in myxperia (or something like that) -> disable/deactivate). Then reboot your phone and check again. It's high probability, that bootloader change state to unlockable in service tests. myXperia is asking you to turn on in initial configuration (if you have new phone or after wipe), and most people turn it on by default and forget it.

Related

[Q]Bootloader Unlock Allowed: No = forever stock Kernel?

Well means that simply that I can forget oc or uv my device as like using cm in my device?
And the way flashing a kernel via fastboot won't work for us?
Sent from my C5303 using xda app-developers app
Forget about unlocking the bootloader, its not possible. No over/under-clock for you, no CyanogenMod or other goodies.
All carrier branded phones are locked and almost impossible to unlock.
cachanilla86 said:
Forget about unlocking the bootloader, its not possible. No over/under-clock for you, no CyanogenMod or other goodies.
All carrier branded phones are locked and almost impossible to unlock.
Click to expand...
Click to collapse
No love for me
Sent from my C5303 using xda app-developers app
Cruel world
Sent from my C5303 using xda app-developers app
cachanilla86 said:
Forget about unlocking the bootloader, its not possible. No over/under-clock for you, no CyanogenMod or other goodies.
All carrier branded phones are locked and almost impossible to unlock.
Click to expand...
Click to collapse
BTW.. Why cannot her over/under-clock the phone?
I have over/under clock with a locked BL. Ofcourse there is only somuch that you can and cant do. but still..
Silversniper said:
No love for me
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
Silversniper said:
Cruel world
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
Only thing I can recommend is to get a generic device instead of a carrier one.
No use lamenting about it here.
This message was sent so that I'm slightly more useful
cbarai said:
BTW.. Why cannot her over/under-clock the phone?
I have over/under clock with a locked BL. Ofcourse there is only somuch that you can and cant do. but still..
Click to expand...
Click to collapse
How should overclock work, stock kernels are not able to be setted higher.
Under-clock is possible yes.
Sent from my C5303 using xda app-developers app
i think so
i cant find any toos to unlock it,if u succeed,share with us pls
Silversniper said:
Well means that simply that I can forget oc or uv my device as like using cm in my device?
And the way flashing a kernel via fastboot won't work for us?
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
Some people say that rooting solves the problem (XZ only?), some say unlocking the sim works
Sent from my C5303 using xda app-developers app
Rooting changes nothing, sadly
Gesendet von meinem C5303 mit Tapatalk
is there chance to have -Bootloader Unlock Allowed: No - when my phone is from shop ? ( not from carrier, not branded)
I think that it's not the matter of branded/not branded etc. beacuse I've seen bootloader unlock allowed: yes after I rooted and installed CWM and TWRP; today I've reverted rooting via SPC and the bootloader unlock allowed is back on: no; so I think someone has to look through it to see if you can override it...
Riodrian said:
I think that it's not the matter of branded/not branded etc. beacuse I've seen bootloader unlock allowed: yes after I rooted and installed CWM and TWRP; today I've reverted rooting via SPC and the bootloader unlock allowed is back on: no; so I think someone has to look through it to see if you can override it...
Click to expand...
Click to collapse
I rooted and installed cwm/twrp but it's still saying No
Next i'll install generic C5303 firmware, as I am running on branded firmware! Have to do it tomorrow though because It's pretty late now
Nope
Silversniper said:
Well means that simply that I can forget oc or uv my device as like using cm in my device?
And the way flashing a kernel via fastboot won't work for us?
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
I doubt the Sony bootloader will be cracked any time soon as the Xperia T was never cracked and thats a much older device.
Unfortunately that means no custom kernels/CyanogenMod.
If you buy a factory unlocked device the bootloader will be unlockable/carrier branded devices may be locked and not unlock able.. Pretty simple really.
Sorry that I can't help much.
Un-lock Xpeia SP
If you Un-lock the Xperia SP for all Networks, does this make bootloader Unlock available?
If not, any Ideas why?
Been answered many times before.
raziel123 said:
If you Un-lock the Xperia SP for all Networks, does this make bootloader Unlock available?
If not, any Ideas why?
Click to expand...
Click to collapse
Nope. SIM-UNLOCK is separate to bootloader unlock.
It just doesn't.
On some old xperia phones you could open sim and bootloader like xperia arc if you used test point method to unlock sim it unlocked boot loader as well.
2013 xperia models that don't have removable battery are no longer able to use test point so you can't unlock boot loader or sim.
To unlock sim you need code which you cab buy from internet.
To unlock bootloader you need to contact your airtime provider and see if they will help in unlocking bootloader again this needs code but not freely available.
Sent from my C5303 using xda premium

[Q] BIONZ work after relock the bootloader?

Hi guys!
I've read several threads about loosing the BIONZ after unlocking the bootloader. Some say it depends on DRM, some say it has nothing to do with. It's possible to regain it after relocking the BL?
What is truth about this?
Unlocking bootloader makes no change to software...just make sure u have a TA backup....
Sent from my C6902
sruba209 said:
Unlocking bootloader makes no change to software...just make sure u have a TA backup....
Sent from my C6902
Click to expand...
Click to collapse
Actually it does make a lot of changes to the software. Just take a look at the stock rom logcat straight after booting. There's a check if bl is unlocked and if it is then it wipes some stuff.
TA backup is very important before unlocking it so u can go back to LB and send your phone in for a warranty. I can't tell what's up with the bionz as I've unlocked my BL and then restored it, but the camera doesn't seem to be as good as it was. That might be caused by 4.4 firmware though. Can't tell for sure.
Wysłane z mojego C6903 przy użyciu Tapatalka
I unlocked mine BL and mine Track ID still works? How come?
Skickat från min C6903 via Tapatalk
bihslk said:
I unlocked mine BL and mine Track ID still works? How come?
Skickat från min C6903 via Tapatalk
Click to expand...
Click to collapse
I unlocked and Track ID working like always. Do you want a vid?
Woot? I just say that track id works even without DRM. And its not market downloaded
Skickat från min C6903 via Tapatalk
some unlock bootloader guys confirm track ID work but they cant use update music info feature in walkman app, x-reality stop working, picture quality lower than lockbootloader
( im not sure, just read from google, should we make a thread to vote and confirm what feature stop working after unlock bootloader ?)
I can say it like this then.
I unlocked lost drm keys forever. I relocked my phone using flashtool. Drm keys still not there according to what we know.
But all the functions you mention works. I've compared pictures with ones that comes from a locked bl with never was unlocked. They are the same quality. The other functions you mention works aswell.
And remember now, I don't have any drm keys. But I have relocked bl. I unlocked last night again. And I actually checked these things just to see and guess what. They all still worked.
Sent from my C6903 using XDA Free mobile app
Jonas740 said:
I can say it like this then.
I unlocked lost drm keys forever. I relocked my phone using flashtool. Drm keys still not there according to what we know.
But all the functions you mention works. I've compared pictures with ones that comes from a locked bl with never was unlocked. They are the same quality. The other functions you mention works aswell.
And remember now, I don't have any drm keys. But I have relocked bl. I unlocked last night again. And I actually checked these things just to see and guess what. They all still worked.
Sent from my C6903 using XDA Free mobile app
Click to expand...
Click to collapse
Even Music info in Walkman works well. All these settings works without problem
bihslk said:
I unlocked mine BL and mine Track ID still works? How come?
Click to expand...
Click to collapse
That is your statement.
bihslk said:
Woot? I just say that track id works even without DRM. And its not market downloaded
Click to expand...
Click to collapse
As you put a Question Mark, I supposed you was asking and not confirming..

Is BL Unlock Code useless w/a locked BL

quick question....ive got a BL unlock code for the Z1s --- is it useless?
Yes
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southsideweezy said:
quick question....ive got a BL unlock code for the Z1s --- is it useless?
Click to expand...
Click to collapse
Totally.
southsideweezy said:
quick question....ive got a BL unlock code for the Z1s --- is it useless?
Click to expand...
Click to collapse
Yes, it totally wipes all data on the phone, e.g contacts, messages, call history, apps and data, and everything which belongs to internal storage.
You should get a backup before you unlock your BL.
You should just unlock it if you wanna root, and be aware of its pros and cons
SaeedFazlollahzadeh said:
Yes, it totally wipes all data on the phone, e.g contacts, messages, call history, apps and data, and everything which belongs to internal storage.
You should get a backup before you unlock your BL.
You should just unlock it if you wanna root, and be aware of its pros and cons
Click to expand...
Click to collapse
DONT UNLOCK FOR ROOT,you are giving bad info bud,no need to unlock for root
SaeedFazlollahzadeh said:
Yes, it totally wipes all data on the phone, e.g contacts, messages, call history, apps and data, and everything which belongs to internal storage.
You should get a backup before you unlock your BL.
You should just unlock it if you wanna root, and be aware of its pros and cons
Click to expand...
Click to collapse
joecool666 said:
DONT UNLOCK FOR ROOT,you are giving bad info bud,no need to unlock for root
Click to expand...
Click to collapse
Both of you should also read the OP
he has a Z1S
root is impossible, unlocked bootloader is impossible.
Please close the thread..
gregbradley said:
Both of you should also read the OP
he has a Z1S
root is impossible, unlocked bootloader is impossible.
Please close the thread..
Click to expand...
Click to collapse
i did read thats why i said what i said,
joecool666 said:
i did read thats why i said what i said,
Click to expand...
Click to collapse
He is right
After I rooted my Z1, I figured out that there's no need to unlock BL for root
Read the posts that don't need to unlock BL
Sent from my C6903 using Tapatalk
Yes it is well known that there is no need to unlock in order to root
However, he has a Z1S. There is no way to root that phone at all, so the point is moot.
He cannot unlock the boot AND he cannot root.
Really? Z1S is unroorable? Or it's like Z1 kitkat, hard to root?
Sent from my C6903 using XDA Premium 4 mobile app
Its impossible.
Z1 KK is rootable because you can downgrade.
There are no rootable firmwares for the Z1S as it was introduced on 4.3 which has no root exploit.
gregbradley said:
Its impossible.
Z1 KK is rootable because you can downgrade.
There are no rootable firmwares for the Z1S as it was introduced on 4.3 which has no root exploit.
Click to expand...
Click to collapse
what a bu**er for thos who dont know about this,
---------- Post added at 01:31 PM ---------- Previous post was at 01:02 PM ----------
SaeedFazlollahzadeh said:
He is right
After I rooted my Z1, I figured out that there's no need to unlock BL for root
Read the posts that don't need to unlock BL
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
so why ask,
I even did not downgrade my phone
I rooted it in KK (757) stock global rom
Just by installing cwm, and then installing supersu
Sent from my C6903 using XDA Premium 4 mobile app
you can only do that after unlocking the bootloader. But doing it that means you do not get to back up your TA.
Unlocking the bootloader is an easy way to get root, but not always the best way
gregbradley said:
you can only do that after unlocking the bootloader. But doing it that means you do not get to back up your TA.
Unlocking the bootloader is an easy way to get root, but not always the best way
Click to expand...
Click to collapse
What do you mean?
Now I'm regretting that why I rooted my phone by unlocking BL
At all I want Nokia 1100
The best phone forever
LOOOOOOL
Oh, thanks for your helping me to get the 4k and Timeshift
Remember me?
Sent from my C6903 using XDA Premium 4 mobile app
SaeedFazlollahzadeh said:
What do you mean?
Now I'm regretting that why I rooted my phone by unlocking BL
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Seems like the message is sinking in.
The most direct method is not always the best.
gregbradley said:
Seems like the message is sinking in.
The most direct method is not always the best.
Click to expand...
Click to collapse
Yes, I exactly accept it, and I experienced it
Sent from my C6903 using XDA Premium 4 mobile app
z1s root
gregbradley said:
Both of you should also read the OP
he has a Z1S
root is impossible, unlocked bootloader is impossible.
Please close the thread..
Click to expand...
Click to collapse
i see root is possible for z1s, notthing is impossible just like the bootloader
Nothing is not impossible for hackers and programmers
Sent from my C6903 using XDA Premium 4 mobile app
joecool666 said:
i see root is possible for z1s, notthing is impossible just like the bootloader
Click to expand...
Click to collapse
AT the time I wrote that it was impossible, but yes root has been achieved.
However, unlocking the boot on a Z1S is still impossible

[Q] Unlock bootloader

Hey guys. I'm trying to unlock my booaloader of my Xperia Z C6603.
When I go to the service menu and check it says "Bootloader unlock allowed: No".
The point is, that I haven't bought my phone from a carrier, it's unlocked from factory and I don't know why I can't unlocked it
If it says "No", then it's permanently locked.
Did you purchase it brand new, directly from a store or used from a third party?
Sent from my C6603 using Tapatalk
kingvortex said:
If it says "No", then it's permanently locked.
Did you purchase it brand new, directly from a store or used from a third party?
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
I bought it second hand from ebay
plamen97 said:
I bought it second hand from ebay
Click to expand...
Click to collapse
Then it's possible that the seller flashed generic software on a carrier supplied phone that they network unlocked before selling it to you.
You should contact Sony support and they should be able to confirm this if you supply your IMEI number.
Sent from my C6603 using Tapatalk
kingvortex said:
Then it's possible that the seller flashed generic software on a carrier supplied phone that they network unlocked before selling it to you.
You should contact Sony support and they should be able to confirm this if you supply your IMEI number.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
I contacted Sony and my phone was branded to Three UK, so I can't unlock the bootloader
plamen97 said:
I contacted Sony and my phone was branded to Three UK, so I can't unlock the bootloader
Click to expand...
Click to collapse
Sorry to hear that.
Did the seller advertise it as an unbranded phone? Perhaps you can contact eBay to see if something can be done, even if it's some time after purchase. It's worth a try.
Sent from my C6603 using Tapatalk
I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
plamen97 said:
I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
Click to expand...
Click to collapse
You cannot unlock a BL locked phone using flashtool.
If you want a different rom there are plenty of stock based custom roms just use the search function
plamen97 said:
I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
Click to expand...
Click to collapse
It 100% won't work. You may soft brick the device, but most probably it will just fail with no adverse effect.
Sent from my C6603 using Tapatalk
androidtweaker1 said:
You cannot unlock a BL locked phone using flashtool.
If you want a different rom there are plenty of stock based custom roms just use the search function
Click to expand...
Click to collapse
I know, but I want Paranoid and to have it I need a custom kernel :/

Xz1 compact Docomo unlock status

I have an xz1 compact Docomo. The bootloader status is No. however I can use my operator's sim. Is there any way to change bootloader status to YES?
Sent from my [device_name] using XDA-Developers Legacy app
[email protected] said:
I have an xz1 compact Docomo. The bootloader status is No. however I can use my operator's sim. Is there any way to change bootloader status to YES?
Sent from my [device_name] using XDA-Developers Legacy app
Click to expand...
Click to collapse
Yes pay for the credit of qunlocktool then you can unlock it
hupengwei said:
Yes pay for the credit of qunlocktool then you can unlock it
Click to expand...
Click to collapse
I'm talking about unlock bootloader!! Not unlock sim
[email protected] said:
I'm talking about unlock bootloader!! Not unlock sim
Click to expand...
Click to collapse
But in fact it can also unlock the bootloader
[email protected] said:
I'm talking about unlock bootloader!! Not unlock sim
Click to expand...
Click to collapse
We're you successful in unlocking?
jayloofah said:
We're you successful in unlocking?
Click to expand...
Click to collapse
I have not tried. although I don't think it works
jayloofah said:
We're you successful in unlocking?
Click to expand...
Click to collapse
Google you may found how qunlocktool unlock the bootloader although it is not Free
did you unlock it?
i have the same phone, an xperia xz1 compact docomo version.
how do i unlock the bootloader in it? i searched for in a lot of articles in xda, cant seem to find a good solution.
if you unlocked your phone, how did you do it?
expecting your reply, thanks

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