[Question/Solved] Bootloader - Sony Xperia T, TL, TX, V

Hello. Some of you may know me as -SlenderMan- however i've given that account back to my brother since he came back from the army.
Now let's talk about bootloader. I have a bootloader status of 'Yes' meaning I can unlock it. However I decided to lock it back and do a full reset of my phone. Now the status says 'No' and i'm unable to unlock my bootloader again. Please help me. Thanks
-Erica Law

Odp: [Question] Bootloader
You have got xperia t and you relocked your t with ftf from Jozinek?
Wytapane z Xperii T

dkownacki said:
You have got xperia t and you relocked your t with ftf from Jozinek?
Wytapane z Xperii T
Click to expand...
Click to collapse
No I have a Xperia V and relocked it with a ftf I made myself when I used my old account -SlenderMan-

Re: [Question] Bootloader
Was there a preset.ta in the ftf?
You may have locked your phone for good, have you tried unlocking with the code you originally had?
Sent from my LT30p using Tapatalk 2

mpiekp said:
Was there a preset.ta in the ftf?
You may have locked your phone for good, have you tried unlocking with the code you originally had?
Sent from my LT30p using Tapatalk 2
Click to expand...
Click to collapse
I tried unlocking with the code I had but no go. Also I have used my own ftf to lock my bootloader many times and it's fine. Until today...

Re: [Question] Bootloader
Ouch..
Could be worth a repair attempt of your original fw
Sent from my LT30p using Tapatalk 2

mpiekp said:
Ouch..
Could be worth a repair attempt of your original fw
Sent from my LT30p using Tapatalk 2
Click to expand...
Click to collapse
I'm going to try flash an ftf. See if that works. I think PC Companion might have locked mine up.

Okay I think flashing an ftf fixed it. Solved.

Related

[FTF] Relock BootLoader for Xperia V

How to relock your bootloader for Xperia V...
Instruction:
1: Get Flashtool --> Flashtool
2: Power Off Phone
3: Run Flashtool
4: Drag and drop the .ftf file into Flashtool
5: Plug in phone to PC while holding Volume [-] button
6: Let it run
7: Bootloader Locked
Click to expand...
Click to collapse
Download:
Xperia V Relock BootLoader.ftf
Click to expand...
Click to collapse
Credits:
-funiewski [For loader.sin file]
If I missed anyone, please asked to be added
Click to expand...
Click to collapse
dogsly said:
LT25i_Relock_bootloader_dogsly_test.ftf
Create Flashtool version 0.9.9.0
Not tested (I have no SXV) I had already made ​​the files for relock bootloader SXP, SXU, SX Ion, and they worked.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=32978279&postcount=2
Unlock/Relock Bootloader
LT25i_Relock_bootloader_dogsly_test.ftf by dogsly
Click to expand...
Click to collapse
Sorry. Missed that post and got excited to post one
Sent from your backyard...
Slender watches what you do...
can anyone test?
I copy "Xperia V Relock BootLoader.ftf" into flashtool/firmware and show LT30
why?
ichdang said:
I copy "Xperia V Relock BootLoader.ftf" into flashtool/firmware and show LT30
why?
Click to expand...
Click to collapse
Well it was based from that. I only changed a file.
Sent from your backyard...
Slender watches what you do...
-SlenderMan- said:
Well it was based from that. I only changed a file.
Sent from your backyard...
Slender watches what you do...
Click to expand...
Click to collapse
ok thank you very much! I will try...
relock lost BRAVIA Engine 2?
ichdang said:
ok thank you very much! I will try...
relock lost BRAVIA Engine 2?
Click to expand...
Click to collapse
Did it work? Is it true BRAVIA Engine 2 was lost?
Any defects?
Please I need to relock my xperia V
I didn't lose my Bravia Engine.
Sent from my LT25i using Tapatalk 2
DynamoOfVolition said:
Did it work? Is it true BRAVIA Engine 2 was lost?
Any defects?
Please I need to relock my xperia V
Click to expand...
Click to collapse
be1 on my tx work again after relock bootloader.
So the rumors ive heard before was false? There are some people in xda told me that unlocking the bootloader will lose be2 and drm keys? I dont know which thread.. I cant remember it anymore. But im sure its was on xda's forum.
Sent from my LT25i
Erica Law said:
I didn't lose my Bravia Engine.
Sent from my LT25i using Tapatalk 2
Click to expand...
Click to collapse
wierd? Did you unlock BL in when u were in JB or ICS?
cnkhanh said:
wierd? Did you unlock BL in when u were in JB or ICS?
Click to expand...
Click to collapse
ICS. But I relock and unlocked on JB too.
Sent from my LT25i using Tapatalk 2
Really?
Erica Law said:
I didn't lose my Bravia Engine.
Sent from my LT25i using Tapatalk 2
Click to expand...
Click to collapse
Can you post some screen wich on and of BE2??
In album and movies apk
thank for the info,
i will do it once i found the rom i like
awesome! thank you. worked flawlessly
Seems that i'm not lucky today.
I tried to relock my bootloader, process goes ok but now my phone is bricked.
i hope to find a solution but everything i tried until now failed: SUS, PC companion, flashing a new one, ...
Edit: After several attempts, i successfuly flashed a stock ROM and the phone is working again... :good:
I bet you had a custom kernel installed...
Sent from my C6903 using xda premium
Yes, you're right.
can anyone confirm that the Bravia Engine stops working after an unlock, and if it does, does this method makes it work again?

Xperia T/TX/TL firmware 9.1.A.0.489 certified

Hello!
PTCRB XperiaT/TX/TL Jelly Bean firmware incoming; firmware version 9.1.A.0.489 certified
31 Jan 2013
Very good news!
ludwikjonkisz said:
Hello!
PTCRB XperiaT/TX/TL Jelly Bean firmware incoming; firmware version 9.1.A.0.489 certified
31 Jan 2013
Click to expand...
Click to collapse
When is it coming ? Jan the 31st ....So today ?ok Not today but weeks later http://www.xperiablog.net/2013/01/3...oming-firmware-version-9-1-a-0-489-certified/ better late then never though I wouldn't expect never for such a new phone that would be just ridiculous
Just out of interest, when an FTF file becomes available, could you then flash it with flashtool on a stock ICS locked bootloader?
Judging by past firmware updates, it's taken 2/3 months for Orange to push an update.
Yes, or you could flash the 303 generic UK and ota to current. You'll then get jelly when Sony says not ee.
Sent from my LT30p using xda app-developers app
SWFlyerUK said:
Just out of interest, when an FTF file becomes available, could you then flash it with flashtool on a stock ICS locked bootloader?
Judging by past firmware updates, it's taken 2/3 months for Orange to push an update.
Click to expand...
Click to collapse
No u cant With locked bootloader flashtool cant do anything. Im also with locked T from Orange so I just hope they will do the job a bit faster
Maybe someone will finelly crack it :-/
kingstonxl said:
No u cant With locked bootloader flashtool cant do anything. Im also with locked T from Orange so I just hope they will do the job a bit faster
Maybe someone will finelly crack it :-/
Click to expand...
Click to collapse
Or grow a pair and unlock your bootloader like a real XDA member.
kingstonxl said:
With locked bootloader flashtool cant do anything
Click to expand...
Click to collapse
I wonder how I flashed my V with its locked bootloader to Xperia VL's firmware using Flashtool, then.
All you need is matching signatures, and all similar models share them.
Yes good news
kingstonxl said:
No u cant With locked bootloader flashtool cant do anything. Im also with locked T from Orange so I just hope they will do the job a bit faster
Maybe someone will finelly crack it :-/
Click to expand...
Click to collapse
Sorry but you've got that wrong, you can use flashtool to flash an official ftf onto a phone with a locked bootloader, I've done it loads of times with my xperia's. In essence if your locked to a network orange, t-mobile ect then you can get the region generic ftf and flash it with flashtool to debrand your phone
What you can't do is flash custom ROMs which require a custom kernel.
Sent from my Nexus 7 using Tapatalk 2
Thanks for the responses guys, I thought it would be possible, the only reason I ask is that I've flashed ICS firmwares to the T in the past, but wasn't sure with it being a different version of the OS.
Odp: Xperia T/TX/TL firmware 9.1.A.0.489 certified
del1701 said:
Sorry but you've got that wrong, you can use flashtool to flash an official ftf onto a phone with a locked bootloader, I've done it loads of times with my xperia's. In essence if your locked to a network orange, t-mobile ect then you can get the region generic ftf and flash it with flashtool to debrand your phone
What you can't do is flash custom ROMs which require a custom kernel.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Fastboot doesn't work on locked bootloader.
Sent from my LT30p using xda app-developers app
kingstonxl said:
Fastboot doesn't work on locked bootloader.
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
Please read before continuing to facepalm yourself.
Flashtool does not require your bootloader to be unlocked. It also does not even you require your phone ot be rooted.
Flashtool can be used on any xperia phone regardless. It does not require fastboot
Odp: Xperia T/TX/TL firmware 9.1.A.0.489 certified
gregbradley said:
Please read before continuing to facepalm yourself.
Flashtool does not require your bootloader to be unlocked. It also does not even you require your phone ot be rooted.
Flashtool can be used on any xperia phone regardless. It does not require fastboot
Click to expand...
Click to collapse
Oh u r so smart wish I would.
Sent from my LT30p using xda app-developers app
kingstonxl said:
Fastboot doesn't work on locked bootloader.
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
And what does fastboot have to do with flashtool?
The original question was "Can an ftf be flashed with flashtool onto a phone with a locked bootloader" and the answer is yes.
Sent from my LT30p using Tapatalk 2
kingstonxl said:
No u cant With locked bootloader flashtool cant do anything. Im also with locked T from Orange so I just hope they will do the job a bit faster
Maybe someone will finelly crack it :-/
Click to expand...
Click to collapse
kingstonxl said:
Fastboot doesn't work on locked bootloader.
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
kingstonxl said:
Oh u r so smart wish I would.
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
Well, without wishng to flame the situation I also wish you would because what you have said is garbage and incorrect. And its not like its anything technical, its the basics.....
travis82 said:
Or grow a pair and unlock your bootloader like a real XDA member.
Click to expand...
Click to collapse
Wait...we have a bootloader unlock for TL on ATT?
So this is 4.1? I got the update in sony bridge, but updating means I lose my root right? (locked bootloader)
Yes when you update to different firmware you will lost the root privilege
Sent from my LT25i using xda premium
soncarl said:
Yes when you update to different firmware you will lost the root privilege
Sent from my LT25i using xda premium
Click to expand...
Click to collapse
Not always, there are ways around it. But in general yes.
Once the new firmware hits users with locked bootloaders we will see if we lose root, but then we will also find a way to root the newfirmware or find a way to update that does not lose root.

[Q] Sony Update Service

Hi, if I keep my Bootloader locked, does it mean I can always repair with SUS regardless of custom roms I am on?
New to the world of Sony..
Yes you can.
Sent from my C6602 using xda premium
scpion said:
Hi, if I keep my Bootloader locked, does it mean I can always repair with SUS regardless of custom roms I am on?
New to the world of Sony..
Click to expand...
Click to collapse
I read that SUS refused to repair because stock apps were removed. So you should deactivate them instead of removing.
Sent from my Xperia Z using xda premium
Dreiundachzig said:
I read that SUS refused to repair because stock apps were removed. So you should deactivate them instead of removing.
Sent from my Xperia Z using xda premium
Click to expand...
Click to collapse
no, i think as long as it recognises official firmware (regardless of apps), it will reflash.
scpion said:
Hi, if I keep my Bootloader locked, does it mean I can always repair with SUS regardless of custom roms I am on?
New to the world of Sony..
Click to expand...
Click to collapse
i think you need to unlock the bootloader to install custom roms, so technically if you keep the bootloader locked you'll always be able to repair.
Flashing a phone with a locked bootloader should always work as long as there are no extensive build.prop changes made.

Can I relock my bootloader without DRM keys?

Hello everyone,I have a question here...
My XSP bootloader is unlocked, and now I want to relock it...
But,when I unlock it, I forgot to backup my DRM keys...
Can I relock it without using the DRM keys?
Thank you before..
Sent from my C5302 using Xparent BlueTapatalk 2
Yes
Sent from my C5303 using Tapatalk
Yes you can but:
- No Bravia Engine
- No Gracenote/TrackID
- No OTA (thats what they are saying)
mrjraider said:
Yes you can but:
- No Bravia Engine
- No Gracenote/TrackID
- No OTA (thats what they are saying)
Click to expand...
Click to collapse
he will be able to install ota updates with locked bootloader
@mrjraider my phone bootloader is unlocked and still have bravia engine (compared to my friends xsp), I still can use track id and gracenote service, and still can received OTA update
Sent from my C5303 using XDA Premium 4 mobile app
mrjraider said:
Yes you can but:
- No Bravia Engine
- No Gracenote/TrackID
- No OTA (thats what they are saying)
Click to expand...
Click to collapse
ah,that's a waste to relock my bootloader then if the BE still not work..
mrjraider said:
Yes you can but:
- No Bravia Engine
- No Gracenote/TrackID
- No OTA (thats what they are saying)
Click to expand...
Click to collapse
Pulsa said:
@mrjraider my phone bootloader is unlocked and still have bravia engine (compared to my friends xsp), I still can use track id and gracenote service, and still can received OTA update
Sent from my C5303 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
how can it still work dude?they say if we unlock our bootloader we will lost the bravia engine and etc...
@Chena_22 i don't know, i think sony is lie to us, because i still use all sony service.
I'm now using stock sony's 4.3 with bootloader still unlocked
Sent from my C5303 using XDA Premium 4 mobile app
i too have unlocked bootloader and everything works fine on 4.3 stock
Even I have unlocked bootloader on rooted Xperia SP 4.3 and everything works fine. :-o
Sent from my C5302 using XDA Premium 4 mobile app
Chena_22 said:
how can it still work dude?they say if we unlock our bootloader we will lost the bravia engine and etc...
Click to expand...
Click to collapse
Everything works for me too with unlocked bootloader. Except for OTA updates.
It's really? I forgot to backup my TA and DRM keys while I was unlocking bootloader. Re-locking bootloader will bring my Bravia Engine back?
David Yaoming said:
It's really? I forgot to backup my TA and DRM keys while I was unlocking bootloader. Re-locking bootloader will bring my Bravia Engine back?
Click to expand...
Click to collapse
No it will just relock it. Bravia Engine wont work anymore
I have an Xperia SP currently running 4.1.2 rooted, bootloader locked.
My aim is to upgrade to 4.3.3 and root, for which i will have to unlock the bootloader. To do so I need a TA partition backup , for which again, root is required.
So, my question is that is it okay if I take a TA Backup now [in 4.1.2] and then upgrade OTA and unlock bootloader, root and then restore the 4.1.2 TA backup onto 4.3.3 in order to restore DRM keys and Relock the bootloader?
Has anyone done this?
is it safe?
Sent from my C5302 using Tapatalk
Vforvanadium said:
I have an Xperia SP currently running 4.1.2 rooted, bootloader locked.
My aim is to upgrade to 4.3.3 and root, for which i will have to unlock the bootloader. To do so I need a TA partition backup , for which again, root is required.
So, my question is that is it okay if I take a TA Backup now [in 4.1.2] and then upgrade OTA and unlock bootloader, root and then restore the 4.1.2 TA backup onto 4.3.3 in order to restore DRM keys and Relock the bootloader?
Has anyone done this?
is it safe?
Sent from my C5302 using Tapatalk
Click to expand...
Click to collapse
Yes, TA partition is not firmware related you can restore it in any stock firmware (don't try to restore your TA on a custom rom) test your back up first and make a many copy
Sent from my LT25i using XDA Free mobile app
ireaper4592 said:
i too have unlocked bootloader and everything works fine on 4.3 stock
Click to expand...
Click to collapse
Can you install the OTA update with that unlocked bootloader?
Mine is unlocked too.
I received a new firmware update, not installed it yet.
But my previous updates, such as Walkman, movies, and album are able to be installed via OTA update...
Sent from my Xperia M Single SIM [C1905] using Tapatalk
FrankHammer said:
Can you install the OTA update with that unlocked bootloader?
Mine is unlocked too.
I received a new firmware update, not installed it yet.
But my previous updates, such as Walkman, movies, and album are able to be installed via OTA update...
Sent from my Xperia M Single SIM [C1905] using Tapatalk
Click to expand...
Click to collapse
tell u the truth i wouldnt even try because i heard a lot of people brick phones by doing that, apps seem fine but whole firmware i personally wouldn't try just in case
ireaper4592 said:
tell u the truth i wouldnt even try because i heard a lot of people brick phones by doing that, apps seem fine but whole firmware i personally wouldn't try just in case
Click to expand...
Click to collapse
Then, I have to reflash firmware if I want to update -_-
Haha, it is fine
Sent from my Xperia M Single SIM [C1905] using Tapatalk

[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 :/

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