Go back to locked bootloader or not? - Xperia Z Q&A, Help & Troubleshooting

Hi, I had my bootloader unlocked before the possibility to root and install a recovery with a locked bootloader.
I understand that is it possible to revert back and relock the bootloader (and get the Bravia Engine back) my question is: is it worth it? Can I flash every rom with a locked bootloader? Are there "side effects"?
Thanks!
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After reading this topic: http://forum.xda-developers.com/showthread.php?t=2190272
I dont even dare to relock the bootloader. (Not that I was planning to do so anyway.)
He fixed it using SUS.
Also, I do not think relocking will get you BE2 back.
Correct me if Iam wrong.
Kind regards, Stefan.

Thaevil0ne said:
After reading this topic: http://forum.xda-developers.com/showthread.php?t=2190272
I dont even dare to relock the bootloader. (Not that I was planning to do so anyway.)
He fixed it using SUS.
Also, I do not think relocking will get you BE2 back.
Correct me if Iam wrong.
Kind regards, Stefan.
Click to expand...
Click to collapse
The guy in that thread just messed up his Rom and kernel that why our didn't boot.
All he have to do is to flash the stock Rom again
As for BE, for now no one was able to get it back after relocking
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R: Go back to locked bootloader or not?
abd_alazeez2002 said:
The guy in that thread just messed up his Rom and kernel that why our didn't boot.
All he have to do is to flash the stock Rom again
As for BE, for now no one was able to get it back after relocking
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Click to expand...
Click to collapse
So, going back to locked bootloader is just a waste of time...
Thanks for the answers!!
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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?
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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
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Cruel world
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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
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Click to expand...
Click to collapse
Silversniper said:
Cruel world
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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.
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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?
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Click to expand...
Click to collapse
Some people say that rooting solves the problem (XZ only?), some say unlocking the sim works
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Rooting changes nothing, sadly
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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?
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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.
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Question about bootloader/root

I have a question... I try the leaked 4.3 ROM by DooMLoRD, but it works really really really bad for me!
Now i RE-LOCK my bootloader and i flash stock rom. I am wondering if now my phone is still rooted and if i can get the 4.3 update when is released...?
You will have lost root by flashing stock ROM... by going back to stock you will get updates via phone and PCC.
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@Jared89 if u have took the backup of TA partition.
And then relocked the BL with the latest flashtool and restore the TA then u will be as good a new.
U can get all the updates.
abhishekcal said:
@Jared89 if u have took the backup of TA partition.
And then relocked the BL with the latest flashtool and restore the TA then u will be as good a new.
U can get all the updates.
Click to expand...
Click to collapse
Okay, but i dont have backup. So i will NOT get the updates ?
I think so but I am not sure.
U can still flash the latest official when released.
So its not a worry.
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abhishekcal said:
I think so but I am not sure.
U can still flash the latest official when released.
So its not a worry.
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Click to expand...
Click to collapse
I noticed that my phone is not working the same way as before unlocking the bootloader. Is slower now.
Anyway... Is there any other way to make my phone like NEW... like i never unlocked the bootloader ?
Jared89 said:
I noticed that my phone is not working the same way as before unlocking the bootloader. Is slower now.
Anyway... Is there any other way to make my phone like NEW... like i never unlocked the bootloader ?
Click to expand...
Click to collapse
I dont think that should happen but if u want u can re lock the bl using the flash tool
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abhishekcal said:
I dont think that should happen but if u want u can re lock the bl using the flash tool
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Click to expand...
Click to collapse
I did already. A few days ago, but i am wondering if i can make my phone like new...
I think i make mistake when i unlocked it.
Bro I dont think that unlocking the boot loader will be the reason.
But u never know.
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[SOLVED] Struggling to get into recovery

So my bootloader is unlocked and my device rooted, trouble is every recovery I flash doesn't want to boot. I'm on the three branded 257 firmware, is there anything I can use or do I need to upgrade to a newer one?
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@non4 said:
So my bootloader is unlocked and my device rooted, trouble is every recovery I flash doesn't want to boot. I'm on the three branded 257 firmware, is there anything I can use or do I need to upgrade to a newer one?
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Click to expand...
Click to collapse
try doomlord kernel... i think thats work well
danielhariri said:
try doomlord kernel... i think thats work well
Click to expand...
Click to collapse
On any firmware? Cheers!
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Now running doomkernel as suggested
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how do i root stock 4.4 just updated LB

is there any way of rooting stock 4.4 ? on LB, just updated and cant find anything.
Short answer : No.
Unlock your bootloader or wait for an exploit/prerooted rom.
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kingvortex said:
Short answer : No.
Unlock your bootloader or wait for an exploit/prerooted rom.
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Click to expand...
Click to collapse
If i unlocked the bootloader. From where i get boot.img with CWM for 4.4.2?
i have rooted 4.4.2 with locked bootloader.
Mirdan Dee said:
i have rooted 4.4.2 with locked bootloader.
Click to expand...
Click to collapse
Well enlighten us how you have done it.
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androidfreak70 said:
If i unlocked the bootloader. From where i get boot.img with CWM for 4.4.2?
Click to expand...
Click to collapse
DooMLoRD's advanced stock kernel
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indycar said:
Well enlighten us how you have done it.
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Click to expand...
Click to collapse
here's the link :http://forum.xda-developers.com/xperia-z/development/guide-how-to-root-101-firmware-lb-t2656698
Mirdan Dee said:
here's the link :http://forum.xda-developers.com/xperia-z/development/guide-how-to-root-101-firmware-lb-t2656698
Click to expand...
Click to collapse
That is of no help to those that cannot unlock their bootloader.
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kingvortex said:
DooMLoRD's advanced stock kernel
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Click to expand...
Click to collapse
Nice... That what i need! Thanks bro
androidfreak70 said:
Nice... That what i need! Thanks bro
Click to expand...
Click to collapse
You're welcome.
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kingvortex said:
That is of no help to those that cannot unlock their bootloader.
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Click to expand...
Click to collapse
no.. just follow step by step the instructions.. or just wait the pre rooted rom..
Mirdan Dee said:
no.. just follow step by step the instructions.. or just wait the pre rooted rom..
Click to expand...
Click to collapse
I don't think you understand. There are some devices where you cannot unlock the bootloader at all, even if you wanted to, therefore that guide is no use to people that own those devices.
I'm not asking for help by the way. I have an unlockable bootloader and am fully aware of how to root.
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kingvortex said:
I don't think you understand. There are some devices where you cannot unlock the bootloader at all, even if you wanted to, therefore that guide is no use to people that own those devices.
I'm not asking for help by the way. I have an unlockable bootloader and am fully aware of how to root.
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Click to expand...
Click to collapse
Lol
Just search in the Xperia Z Android development and look for the rooted 4.4.2 roms by @Rajeev and @zippy01 and follow the steps howto install and tadaa you have root on a locked bl !!!
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LOL indeed.
Please people read and understand what I was responding to before quoting me and trying to be clever again. Posting a guide that requires unlocking then relocking the bootloader is not a method of rooting with a locked bootloader for the reasons in the post of mine that you quoted without reading properly.
We all know that you can downgrade to gain root and flash any stock based rom that you want. You will see that I already suggested it in the second post of this thread.
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[Q] Xperia Z1 help with unroot, relock bootloader and restore to factory settings

Hey,
I've got a Sony Xperia z1 which I will be selling now and I need to get it to factory settings. Im currently running CM11 and am rooted, unlocked bootloader and have a custom recovery. Are there any guides that will get me back to stock firmware and is it possible to get it back so that no one knows it was ever rooted ?? When I unlocked the bootloader I backed up my TA partition.
Thnx
Afterlife737 said:
Hey,
I've got a Sony Xperia z1 which I will be selling now and I need to get it to factory settings. Im currently running CM11 and am rooted, unlocked bootloader and have a custom recovery. Are there any guides that will get me back to stock firmware and is it possible to get it back so that no one knows it was ever rooted ?? When I unlocked the bootloader I backed up my TA partition.
Thnx
Click to expand...
Click to collapse
you can flash the latest official firmware via flashtool(root,recovery gone) than you relock your bootloader and use the TA partition.
good luck
Anonymuszymus said:
you can flash the latest official firmware via flashtool(root,recovery gone) than you relock your bootloader and use the TA partition.
good luck
Click to expand...
Click to collapse
Do I need any luck ? Are there any step by step guides and where do I get the latest official firmware ??
Afterlife737 said:
Do I need any luck ? Are there any step by step guides and where do I get the latest official firmware ??
Click to expand...
Click to collapse
Look in the general section. There is a MEGA COLLECTION thread of FTFs there....
gregbradley said:
Look in the general section. There is a MEGA COLLECTION thread of FTFs there....
Click to expand...
Click to collapse
Are there any guides for the whole process you know of ?
you have 2 guides .you put it together and you have the guide for the whole process...not enough?
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Anonymuszymus said:
you have 2 guides .you put it together and you have the guide for the whole process...not enough?
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Click to expand...
Click to collapse
Calm down please. English isnt my first language, I misread your answers srry
Afterlife737 said:
Calm down please. English isnt my first language, I misread your answers srry
Click to expand...
Click to collapse
everything is alright
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Anonymuszymus said:
everything is alright
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Click to expand...
Click to collapse
Sorry to bother again but Im a bit of a noob :/ In which order do I proceed then ?? Does flashing the FTF via flashtoolget rid of the custom recovery and root the device ? Then I have to relock the bootloader via flashtool too and then restore the TA partition ???
Flash the FTF, root using newroot, restore your TA, flash the FTF again.
Done
.
gregbradley said:
Flash the FTF, root using newroot, restore your TA, flash the FTF again.
Done
.
Click to expand...
Click to collapse
Ohhh and this will regain my warranty correct ??
Well, warranty fraud is not condoned on XDA. I have told you how to relock your bootloader and return your phone to a stock state.
If unlocking your bootloader voided your warranty then its voided no matter what you do after that,
gregbradley said:
Well, warranty fraud is not condoned on XDA. I have told you how to relock your bootloader and return your phone to a stock state.
If unlocking your bootloader voided your warranty then its voided no matter what you do after that,
Click to expand...
Click to collapse
Erhmmm sorry I might be a bit lost ( English isnt my first language...) but I think I get what u are saying... So pls one last question - Is a locked bootloader and stock state any different then when I first got the phone ?
You got your phone with a locked bootloader and stock means it is the firmware that comes from Sony, so yes...
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gregbradley said:
Flash the FTF, root using newroot, restore your TA, flash the FTF again.
Done
.
Click to expand...
Click to collapse
dats it ! All done, thanks so much ! :victory::angel:

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