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Tried searching, but didn't find a clear answer to the disadvantages of unlocking bootloader for Sony Xperia SP.
Am really interested in unlocking bootloader, mainly coz I am a fan of CyanogenMod ROM's.
If an when CM arrives for SP, I will have to unlock bootloader.
If some doubts are cleared, will unlock it right away. May be.
Few questions, simply answered would really be appreciated.
1. We lose DRM is sure, but can we manage to add DRM keys back on unlocked bootloader?
2. Do we lose Bravia Engine 2?
3. Do we lose front camera?
4. Any other disadvantages? Or something I need to know?
Thanks!
1. Yes, backup TA: http://forum.xda-developers.com/showthread.php?t=2292598
2. Yes (unless you follow step 1). I prefer not having bravia engine because I noticed it made pictures taken by our camera look a million times more noisy
3. Well that's just a weird thing to lose... No we don't
4. Not really... Apart from the warranty void stuff of course
Not sure if you need to unlock bootloader to install CM though. If they made it work with stock kernel then you won't need to unlock the bootloader, if it only works with modified kernels then yeah you have to unlock
Unfortunately I did root my phone and unlocked bootloader without paying much attention to backup TA partition and possibility to lose Bravia engine
I should have done more reading instead of rushing to root my Xperia SP
can I know what is DRM keys that have been lost ?!! and if i relock bootloader will I restore Bravia engine.
also if Bravia engine is lost, how come i still can select it in Settings --> Display
is there anyway to test if it is there or not?
Thanks.
ahmedhappy312 said:
Unfortunately I did root my phone and unlocked bootloader without paying much attention to backup TA partition and possibility to lose Bravia engine
I should have done more reading instead of rushing to root my Xperia SP
can I know what is DRM keys that have been lost ?!! and if i relock bootloader will I restore Bravia engine.
also if Bravia engine is lost, how come i still can select it in Settings --> Display
is there anyway to test if it is there or not?
Thanks.
Click to expand...
Click to collapse
Yes bravia engine is lost
It still appears in settings but u will find the difrence in pictures that the bravia engine doesnt work after unlocking bl
Heres the thing guys, I unlocked bootloader on My V and J and still found Bravia working on the albums, I did not backup TA or whatsoever.
Its just placebo that it will be gone. I unlocked bL on both V and J because warranty is gone after a year.
The bravia engine only makes photographs look better on the phone. Sometimes think Sony chose less bright screen hardware just to make BE look good.
Sent from my C5303 using Tapatalk
mohits143 said:
Tried searching, but didn't find a clear answer to the disadvantages of unlocking bootloader for Sony Xperia SP.
Am really interested in unlocking bootloader, mainly coz I am a fan of CyanogenMod ROM's.
If an when CM arrives for SP, I will have to unlock bootloader.
If some doubts are cleared, will unlock it right away. May be.
Few questions, simply answered would really be appreciated.
1. We lose DRM is sure, but can we manage to add DRM keys back on unlocked bootloader?
2. Do we lose Bravia Engine 2?
3. Do we lose front camera?
4. Any other disadvantages? Or something I need to know?
Thanks!
Click to expand...
Click to collapse
Hi!
I think you will find an answer of these question in this thread: link
1.Yes, you can restore the DRM keys if you made a BACKUP! Just flash stock firmware before you do that.
2.Yes, but thats only counts for stock rom.It works fine on custom roms.
3.No.
4.I dont know. My bootloader is unlocked and I have no issues so far.
I hope that helped!Press thanks if it did!
BlAckXpeRia said:
Hi!
I think you will find an answer of these question in this thread: link
1.Yes, you can restore the DRM keys if you made a BACKUP! Just flash stock firmware before you do that.
2.Yes, but thats only counts for stock rom.It works fine on custom roms.
3.No.
4.I dont know. My bootloader is unlocked and I have no issues so far.
I hope that helped!Press thanks if it did!
Click to expand...
Click to collapse
Haha.. I got the reply earlier itself.
Infact unlocked bootloader long time ago.
Thanks though. Should be helpful to newbies.
Sent from my C5303 using Tapatalk now Free
Unlocking From Official site will remove bravia engine?
mohits143 said:
Tried searching, but didn't find a clear answer to the disadvantages of unlocking bootloader for Sony Xperia SP.
Am really interested in unlocking bootloader, mainly coz I am a fan of CyanogenMod ROM's.
If an when CM arrives for SP, I will have to unlock bootloader.
If some doubts are cleared, will unlock it right away. May be.
Few questions, simply answered would really be appreciated.
1. We lose DRM is sure, but can we manage to add DRM keys back on unlocked bootloader?
2. Do we lose Bravia Engine 2?
3. Do we lose front camera?
4. Any other disadvantages? Or something I need to know?
Thanks!
Click to expand...
Click to collapse
Unlocking From Official site will remove bravia engine?
Kruns said:
Unlocking From Official site will remove bravia engine?
Click to expand...
Click to collapse
Yes
Hi guys I'm considering to purchase the Z1 beocz I lose my precious Xperia S a week ago :crying: (very very sad, really love it)
As I'm those type who will definitely root the device and probably unlock it some time later, I really care about the camera problem.
I read the the DoomLord thread which told us to backup the "TA" thing before unlocking the bootloader, so we can restore it and have the camera working again.
May I ask what the "TA" actually is?? how can I backup that thing??
So after I retore it, is the bootloader still unlocked??
If i screw up the TA thing, can I relock the bootloader and save the camera by the official repair function in Sony Update Service??
Sorry I'm noobish but plz explain these things to me thank you!!
BTW, are there something i should consider before i buy the phone?? Is it the right time to buy it??
thank you
Its a partition on the device called trim area.
There is a thread about backing it up and its very easy to do.
If you do not have a TA backup then relocking the bootloader will NOT fix the camera.
Also, do not restore someone elses TA it will hard brick your phone
gregbradley said:
Its a partition on the device called trim area.
There is a thread about backing it up and its very easy to do.
If you do not have a TA backup then relocking the bootloader will NOT fix the camera.
Also, do not restore someone elses TA it will hard brick your phone
Click to expand...
Click to collapse
How if I repair the phone with update service after relocking the BL?
And after I restore the TA, is the bootloader still unlocked??
I'm wondering if there's possible to keep both bootloader unlocked and the 20mp camera working...
KWOKSFUNG said:
How if I repair the phone with update service after relocking the BL?
And after I restore the TA, is the bootloader still unlocked??
I'm wondering if there's possible to keep both bootloader unlocked and the 20mp camera working...
Click to expand...
Click to collapse
Restoring TA relocks the bootloader
There is no way to have an unlocked bootloader and working stock camera
I'm getting a little confused!
After rooting + custom recovery + custom ROM, can I restore my TA to get the camera back? Obviously would like to keep root and the custom ROM.
Sent from my Nexus 4 using Tapatalk
amm009uk said:
I'm getting a little confused!
After rooting + custom recovery + custom ROM, can I restore my TA to get the camera back? Obviously would like to keep root and the custom ROM.
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
Depends on whether the custom ROM requires an unlocked bootloader. Some custom ROMs don't need your bootloader to be unlocked. So that means you can still have root + custom recovery (which don't need unlocked bootloader) + custom ROM, and your bootloader is still unlocked and your camera is still working.
But if the custom ROM requires an unlocked bootloader, then restoring the TA will result in the bootloader being relocked, which means your ROM no longer working.
Someone correct me if I'm wrong.
hush66 said:
Depends on whether the custom ROM requires an unlocked bootloader. Some custom ROMs don't need your bootloader to be unlocked. So that means you can still have root + custom recovery (which don't need unlocked bootloader) + custom ROM, and your bootloader is still unlocked and your camera is still working.
But if the custom ROM requires an unlocked bootloader, then restoring the TA will result in the bootloader being relocked, which means your ROM no longer working.
Someone correct me if I'm wrong.
Click to expand...
Click to collapse
you mr are just spot on.. absolutely correct.
hush66 said:
Depends on whether the custom ROM requires an unlocked bootloader. Some custom ROMs don't need your bootloader to be unlocked. So that means you can still have root + custom recovery (which don't need unlocked bootloader) + custom ROM, and your bootloader is still unlocked and your camera is still working.
But if the custom ROM requires an unlocked bootloader, then restoring the TA will result in the bootloader being relocked, which means your ROM no longer working.
Someone correct me if I'm wrong.
Click to expand...
Click to collapse
Fantastic thanks. Hope Sony get round to fixing this soon.
Sent from my Nexus 4 using Tapatalk
hush66 said:
Depends on whether the custom ROM requires an unlocked bootloader. Some custom ROMs don't need your bootloader to be unlocked. So that means you can still have root + custom recovery (which don't need unlocked bootloader) + custom ROM, and your bootloader is still unlocked and your camera is still working.
But if the custom ROM requires an unlocked bootloader, then restoring the TA will result in the bootloader being relocked, which means your ROM no longer working.
Someone correct me if I'm wrong.
Click to expand...
Click to collapse
u mean " So that means you can still have root + custom recovery (which don't need unlocked bootloader) + custom ROM, and your bootloader is still [[[locked]]] and your camera is still working " ? other than that thnx u clarified things up to me so much
noobs master said:
u mean " So that means you can still have root + custom recovery (which don't need unlocked bootloader) + custom ROM, and your bootloader is still [[[locked]]] and your camera is still working " ? other than that thnx u clarified things up to me so much
Click to expand...
Click to collapse
Basically you can only use roms based on official firmware for now (and have a working camera) afaik. All the roms in the original development area (based on AOSP, custom kernels) required unlocked bootloader and as a result have a non-working camera.
Hey guys,
I unlocked my bootloader some months ago (my Z1 came with stock 4.3) and use SlimKat (weekly ATM) since then.
Now that the official 4.4 update is released, I wonder if there are any advantages (like better cam, wifi, newer modem) from locking the BL, installing stock 4.4 and unlocking BL again, to go back to a custom ROM.
I come from a Samsung device where you could update e.g. the modem/baseband seperately and I understand that in Sony devices all these things are fix in bootloader.
Thanks for your help!
You don't have to relock your bootloader, just flash 4.4 via Flashtool v0.9.14. The step of relock and unlock the Bootlader after flash 4.4 have no benefits at all, just waste of time.
BTW, via Flashtool you can flash baseband only, if you want.
Hey eclyptos, thanks for your reply and the tip. But if do this, does this have any advantages like I stated in the OP?
eclyptos said:
You don't have to relock your bootloader, just flash 4.4 via Flashtool v0.9.14. The step of relock and unlock the Bootlader after flash 4.4 have no benefits at all, just waste of time.
BTW, via Flashtool you can flash baseband only, if you want.
Click to expand...
Click to collapse
Having your locked bootloader does not involve some enhancements in photo quality? apart of the bravia engine and other things...
I believed that there were issues with camera quality on UB (that is why I haven't done it yet), so if there are no advantages, I might be unlocking it really soon...
ral9005 said:
Hey eclyptos, thanks for your reply and the tip. But if do this, does this have any advantages like I stated in the OP?
Click to expand...
Click to collapse
I want remind you first to DO NOT Relock Bootloader on Custom Kernels because you will brick your phone. So if you asking about Kitkat 4.4 itself and not bootloader, then I can say, you have to try it because is the newest Version of 4.4.2, last update of Slimkat was 3th March. Some improvement was made like in Pictures and Smoothness but very tiny difference so is up to you.
About Bootloader, if you asking, the only advantage you will get in Relock Bootlader if you will keep it locked so everything will work like it should, but if you want to Unlocking again after update then don't relock it in first place because it's a waste of time, it will be the same.
pdaaalex said:
Having your locked bootloader does not involve some enhancements in photo quality? apart of the bravia engine and other things...
I believed that there were issues with camera quality on UB (that is why I haven't done it yet), so if there are no advantages, I might be unlocking it really soon...
Click to expand...
Click to collapse
Somebody see differences, somebody doesn't. I try to keep it locked until something really amazing don't come out or will encrease the developing section for Z1.
So I want to unlock my phone Bootloader and install a fresh AOSP 4.4
Mine current android version is 4.3 Jellybean ( 9.2.A.1.199) and on the sony bootloader unlock site when I insert the dial number it says "Root status ...... Allowed "
I rooted it today ( havent installed recovery buy I can do it later)
My questions :
Can my phone brick while trying to unlock the bootloader?
Do I need to download the latest version or the 4.1 version of android ?
All this I'm doing 'cus my 1 year warrantly has ended today so Why not ? :good:
Don't think the bootloader unlock procedure has much risk of bricking your phone... especially if you use the official Sony Bootloader Unlock method. But you may want to read up on backing up your TA before unlocking the bootloader.
LaZiODROID said:
Don't think the bootloader unlock procedure has much risk of bricking your phone... especially if you use the official Sony Bootloader Unlock method. But you may want to read up on backing up your TA before unlocking the bootloader.
Click to expand...
Click to collapse
Can you help me a bit I'm like new to Xperia T developer world ( I have some skills from Xperia X8 but that is like a another world)
CS Fan 991 said:
Can you help me a bit I'm like new to Xperia T developer world ( I have some skills from Xperia X8 but that is like a another world)
Click to expand...
Click to collapse
I'd also suggest backing up your TA first. It's all in here: http://forum.xda-developers.com/showthread.php?t=2292598
If you unlock your bootloader, you lose your Bravia Engine. You can get it back when you lock bootloader, but only if you restore your TA. If you don't have this backup, BE is most likely lost forever.
LaZiODROID said:
Don't think the bootloader unlock procedure has much risk of bricking your phone... especially if you use the official Sony Bootloader Unlock method. But you may want to read up on backing up your TA before unlocking the bootloader.
Click to expand...
Click to collapse
ArtDC said:
I'd also suggest backing up your TA first. It's all in here: http://forum.xda-developers.com/showthread.php?t=2292598
If you unlock your bootloader, you lose your Bravia Engine. You can get it back when you lock bootloader, but only if you restore your TA. If you don't have this backup, BE is most likely lost forever.
Click to expand...
Click to collapse
I've done backing up my TA keys ( done the dry restore to make sure )
So Now I only need to unlock my bootloader ?
Still one question :
Can I use my current version of android 4.3
EDIT : Unlocked the bootloader , put rom , gapps , wipped WORKING AS A CHARM
Thanks for the help !
And if I would like to restore to stock do I need to relock the bootloader ?
CS Fan 991 said:
Thanks for the help !
And if I would like to restore to stock do I need to relock the bootloader ?
Click to expand...
Click to collapse
Nice!
If you want to get your phone back to stock, just flash a stock FTF. Flashtool does not require the bootloader to be relocked for that.
Unless you mean "stock" for warranty purposes, or selling the phone... then I guess I'd say yes to relocking the bootloader, after flashing a stock FTF (and also restoring the TA, of course)
Thanks 4 The Info )))
I am going to unlock boatloader on my xz2,will it cause any function like camera lost?
I also want to know that I can receive ota update or not after unlock.
Thanks for helping
camera will work if you unlock on latest firmware but quality may degrade and ota isn't possible after unlocking so I'd recommend to keep it locked
i have unlocked every sony i have had first chance - camera qulity lost really isnt noticable - and who needs ota -just download from xperifirm????
Hi All, i did unlock bootloader without backup anything. Can I relock bootloader atm (I'm on Android 10)
Many thanks!!!