[Q] disadvantages of Unlocking bootloader? - Sony Xperia P, U, Sola, Go

hi guys... as i was thinking to unlock the bootloader of my XGO, I wanted to know that are there any disadvantages of doing it?
like i read somewhere that after unlocking BL the bravia engine doesnt works... so is it true or just myth? also if there any known downsides of unlocking the BL then plz tell me...
And 1 more thing i wanted to ask that as im using POWER JB rom right now, so do i need to be on stock rom to unlock the BL or can i continue with the power jb rom ?
thanks in adv.

Nakulkhanna said:
hi guys... as i was thinking to unlock the bootloader of my XGO, I wanted to know that are there any disadvantages of doing it?
like i read somewhere that after unlocking BL the bravia engine doesnt works... so is it true or just myth? also if there any known downsides of unlocking the BL then plz tell me...
And 1 more thing i wanted to ask that as im using POWER JB rom right now, so do i need to be on stock rom to unlock the BL or can i continue with the power jb rom ?
thanks in adv.
Click to expand...
Click to collapse
1) The disadvantages are that you will loose bravia engine and you will void your warranty. The only reason you should unlock your bootloader is for installing custom kernels.
You can relock your bootloader via flashtool.This way you will have your warrranty back but you will not get back bravia engine as far as i know because you will loose DRM keys.
2) The rom you are using if for all bootloaders. Otherwise you wouldn't be able to boot system
3) You can unlock your bootloader even if you are on a custom rom but i suggest you to take a backup and install the stock firmware.
4) My opinion is that if you don't want to install custom kernels, cm10 or cm9.1, just leave the device as it is now mate.
5) Don't mess with things that you don't know because you may regret. Unlock bootloader only if you want to install the custom kernel or cm9.1 or cm10.
6) Here you will find a tutorial on how to unlock your bootloader: http://forum.xda-developers.com/showthread.php?t=1527159
Should work on xperia go also.

Didn't make a separate thread as I got the same doubts.
I am using Xperia sola , rooted with stock ICS.
I want to eventually use a stable JB ROM.
I am not worried about losing warranty.
I want to know about the DRM keys.
Is there a way to backup or save "DRM keys"?
And then restore them when I want to relock bootloader?
Sent from my MT27i using xda premium

Redaaku said:
Didn't make a separate thread as I got the same doubts.
I am using Xperia sola , rooted with stock ICS.
I want to eventually use a stable JB ROM.
I am not worried about losing warranty.
I want to know about the DRM keys.
Is there a way to backup or save "DRM keys"?
And then restore them when I want to relock bootloader?
Sent from my MT27i using xda premium
Click to expand...
Click to collapse
I just found this one : http://forum.xda-developers.com/showthread.php?t=2292598
Works also on our devices.
Enjoy!
Didn't try it because i am already on unlocked bootloader mate. But as the thread says:
SUPPORTED DEVICES
Confirmed:
Sony Xperia Z
Sony Xperia ZL
Sony Xperia ZQ
Sony Xperia ION
Sony Xperia S
Sony Xperia SL
Sony Xperia SP
Sony Xperia T
Sony Xperia TX
Sony Xperia P
Sony Xperia L
Sony Xperia U
Sony Xperia Sola
Sony Xperia Tablet Z

DaRk-L0rD said:
I just found this one : http://forum.xda-developers.com/showthread.php?t=2292598
Works also on our devices.
Enjoy!
Didn't try it because i am already on unlocked bootloader mate. But as the thread says:
SUPPORTED DEVICES
Confirmed:
Sony Xperia Z
Sony Xperia ZL
Sony Xperia ZQ
Sony Xperia ION
Sony Xperia S
Sony Xperia SL
Sony Xperia SP
Sony Xperia T
Sony Xperia TX
Sony Xperia P
Sony Xperia L
Sony Xperia U
Sony Xperia Sola
Sony Xperia Tablet Z
Click to expand...
Click to collapse
Thank you!! Thank you!! Thank you!! Thank you!!
I'm off to unlocking bootloader after using that tool!

Redaaku said:
Thank you!! Thank you!! Thank you!! Thank you!!
I'm off to unlocking bootloader after using that tool!
Click to expand...
Click to collapse
Enjoy mate

DaRk-L0rD said:
1) The disadvantages are that you will loose bravia engine and you will void your warranty. The only reason you should unlock your bootloader is for installing custom kernels.
You can relock your bootloader via flashtool.This way you will have your warrranty back but you will not get back bravia engine as far as i know because you will loose DRM keys.
2) The rom you are using if for all bootloaders. Otherwise you wouldn't be able to boot system
3) You can unlock your bootloader even if you are on a custom rom but i suggest you to take a backup and install the stock firmware.
4) My opinion is that if you don't want to install custom kernels, cm10 or cm9.1, just leave the device as it is now mate.
5) Don't mess with things that you don't know because you may regret. Unlock bootloader only if you want to install the custom kernel or cm9.1 or cm10.
6) Here you will find a tutorial on how to unlock your bootloader: http://forum.xda-developers.com/showthread.php?t=1527159
Should work on xperia go also.
Click to expand...
Click to collapse
Thanks alot for ur help brother...
But now am even more confused as I want to flash a custom kernel but at the same time don't wanna loose the bravia engine.. Lol
Lets see what ill choose over what..
Sent from my ST27i using xda app-developers app

Related

Sony Xperia S, P, U, Sola, Acro S ... why not Xperia Go?

Hey everybody and all Developers.
I can see box for some device Xperia 2012 on XDA forum but why not box of Xperia GO
I'm using X GO but i can't find anything about it (
I need help.............!
How to Root?
How to Unlock Bootloader??
How to up rom cook???
I like CM7, CM9, MIUI ...
Here you go:
1. Unlock bootloader
http://unlockbootloader.sonymobile.com/
2. Root
http://forum.xda-developers.com/showthread.php?t=1829729
thanks
driversax said:
Here you go:
1. Unlock bootloader
http://unlockbootloader.sonymobile.com/
2. Root
http://forum.xda-developers.com/showthread.php?t=1829729
Click to expand...
Click to collapse
Can you tell me more..
I'm not good at this
I want to know step by step..

[Q] Flashing custom rom on rooted Sola

Guys, can someone tell me if i can put custom roms on my rooted sola with locked bootloader, cause i prefer not to unlock it?
Please let me know if this is possible and whats the easiest way?
Thank you
mirost1 said:
Guys, can someone tell me if i can put custom roms on my rooted sola with locked bootloader, cause i prefer not to unlock it?
Please let me know if this is possible and whats the easiest way?
Thank you
Click to expand...
Click to collapse
First of all you cannot untill you hv CWM installed on your device
You can install it acc
A) Unlocked Bootloader :
Follow the below post ans you will be able yo install CWM on your Sola
http://forum.xda-developers.com/showthread.php?p=32419976
B) Locked Bootloader :
Works still in progress to install CWM on locked Bootloader, it's already working on Xperia U so if you wana try knock yourself out
Search Xperia U forum
Locked bootloaders can't install custom roms I guess
Sent From Xperia Sola White (MT27i)
Rooted Stock ICS
Hit Thanks If I Helped!!
I'm having same problem here... Just rooted my Xperia Sola stock ICS.. Try to flash the CWM and they said my device is NOT compatible... :/ Help me please! Thanks anyone who will help me out!
Sent from my MT27i using xda app-developers app
Sherwinnn said:
I'm having same problem here... Just rooted my Xperia Sola stock ICS.. Try to flash the CWM and they said my device is NOT compatible... :/ Help me please! Thanks anyone who will help me out!
Sent from my MT27i using xda app-developers app
Click to expand...
Click to collapse
Unlock bootloader and follow the instructions in the link ive givin in my post above
If you dont wana then wait CWM will be der for Sola locked bootloaders too
Sent From Xperia Sola White (MT27i)
Rooted Stock ICS
Hit Thanks If I Helped!!

installin rom

How to install rom onto sony xperia p? I'm a boon so please explain it well.
instaling rom
Sakibrahman said:
How to install rom onto sony xperia p? I'm a boon so please explain it well.
Click to expand...
Click to collapse
it is same for xperia P > http://www.xperiablog.net/2012/04/1...roid-4-0-ics-update-to-your-xperia-arc-guide/
(If you thought the official ICS)
If you want try the rom available in development section,you must have
1.root access
2.cwm
Also rom like cyanogenmod need to unlock the bootloader...
Sent from my xperia sola using xda premium

[QUESTION](P) Bravia Engine unlocked Bootloader.

Hello Today comparete my Xperia P with other Xperia P, with 6.1.1.B.1.75 and see a big difference with Bravia Engine. My phone have ulocked bootloader and the other locked, my Xperia dont work Bravia Engine, i try with Relock Bootloader and nothing, i flash Gingerbread in my phone and works good (relock bootloader) and update to ICS with Update Service and still with problem, Bravia Engine doesnt work. Any solution? It´s normal? I dont know what can i do, i'm sad HELP ME PLEASE
Bravia engine is corrupted on ICS with unlocked bootloader due to removing some DRM. I think, this never will be officialy repaired, because Xperia T has this issue too and it isn't repaired in Jelly Bean .
What about sola?
Sent from my xperia sola using xda premium
Hefko said:
Bravia engine is corrupted on ICS with unlocked bootloader due to removing some DRM. I think, this never will be officialy repaired, because Xperia T has this issue too and it isn't repaired in Jelly Bean .
Click to expand...
Click to collapse
MUHAMMAD KHALIL said:
What about sola?
Sent from my xperia sola using xda premium
Click to expand...
Click to collapse
Thanks for reply In gingerbread with ulocked bootloader works fine, the problem is ICS, and Jelly Bean, bad news I think is for all 2012s Xperia
Odp: [QUESTION](P) Bravia Engine unlocked Bootloader.
Bravia Engine won't work on unlocked bl. Also TrackID and downloading music info in Walkman won't work on unlocked bl. You lost your DRM keys forever.
Sent from my LT22i using xda-developers app
Vaith said:
Bravia Engine won't work on unlocked bl. Also TrackID and downloading music info in Waliman won't work on unlocked bl. You lost your DRM keys forever.
Sent from my LT22i using xda-developers app
Click to expand...
Click to collapse
Walkman downloading info works with new walkman app
Odp: [QUESTION](P) Bravia Engine unlocked Bootloader.
Hefko said:
Walkman downloading info works with new walkman app
Click to expand...
Click to collapse
With old no.
Sent from my LT22i using xda-developers app
Hwy guys try this http://forum.xda-developers.com/showthread.php?t=2068225
estape11 said:
Hwy guys try this http://forum.xda-developers.com/showthread.php?t=2068225
Click to expand...
Click to collapse
Yes, that works but you will loose all unlocked bl benefits (CWM, Root)
i had unlocked my bootloader then again locked, now on stock ics 6.1.1.B.75 rooted, how can i fix my BE .. and does BE2 works on SXP???
Waledac said:
i had unlocked my bootloader then again locked, now on stock ics 6.1.1.B.75 rooted, how can i fix my BE .. and does BE2 works on SXP???
Click to expand...
Click to collapse
link
Use the instruction in the link above to fix "be" and "download music info"
Sent from my xperia sola using xda premium
Thats for unlocked bootloader., now.my bootloader is locked and i.want to fix be
Sent from my LT22i using xda premium
Odp: [QUESTION](P) Bravia Engine unlocked Bootloader.
Waledac said:
Thats for unlocked bootloader., now.my bootloader is locked and i.want to fix be
Sent from my LT22i using xda premium
Click to expand...
Click to collapse
You asked about it already. You lost your DRM keys and you must use instructions for unlocked bl. You can't get back your DRM keys.
Sent from my LT22i using xda-developers app
http://forum.xda-developers.com/showthread.php?t=2068225
This solution does not work on Xperia P , if anyone has any other solution please tell
Waledac said:
http://forum.xda-developers.com/showthread.php?t=2068225
This solution does not work on Xperia P , if anyone has any other solution please tell
Click to expand...
Click to collapse
i confirm that this solution DOES NOT WORK on xperia P
my bravia engine works only in the films app and the third software videos apps (like mx player)..
but not for pictures
ps: mine is unlocked ...,and it worked all on gingerbread! now with ics .75 (or. 54) NOT

[Q] Will Zelly Cream rom work on Neo?

Hi, I have a Live With walkman and i use the zelly cream rom (http://forum.xda-developers.com/showthread.php?t=2155803) and a friend of mine saw it and wanted it. The question is since in the post says that is available to all the 2011 Xperias it should work, but it was posted in the Live with walkman section.
So anyone knows if it will work or not?
So, you asked without searching? Cause if you have searched you would have seen that both neo and Neo v is supported(and all 2011 hdpi devices as you already said)
dicamarques said:
Hi, I have a Live With walkman and i use the zelly cream rom (http://forum.xda-developers.com/showthread.php?t=2155803) and a friend of mine saw it and wanted it. The question is since in the post says that is available to all the 2011 Xperias it should work, but it was posted in the Live with walkman section.
So anyone knows if it will work or not?
Click to expand...
Click to collapse
A simple Google -Zelly cream Rom for Neo or Neo V would have given you your solution!
Sent from my Xperia Neo V using xda premium
Ghostfreak NB said:
A simple Google -Zelly cream Rom for Neo or Neo V would have given you your solution!
Sent from my Xperia Neo V using xda premium
Click to expand...
Click to collapse
Oh sorry guys, it turns out the version of zelly cream is a port from the version of Xperia Arc, Neo etc. Thanks for the help
I'll just leave the link here: http://forum.xda-developers.com/showthread.php?t=2151692
Can we downgrade from zelly cream to ICS or GB?
hello guys i use sony ericsson xperia neo V
i'm interested in installing this custom rom but i have a doubt whether we can downgrade it to ics or gb in future..
if we can downgrade then please someone post it..
and what will be the best display settings for a bettery battery backup?
Samanthg said:
hello guys i use sony ericsson xperia neo V
i'm interested in installing this custom rom but i have a doubt whether we can downgrade it to ics or gb in future..
if we can downgrade then please someone post it..
and what will be the best display settings for a bettery battery backup?
Click to expand...
Click to collapse
Downgrading your phone it's possible, just get the desired ftf file with the version you want and flash it with flash tool. Now to install this rom YOU MUST be on ics .587
About the second question, i didn't understand what you meant.
what would be the best display settings on zelly cream to get a good battery backup?
Samanthg said:
what would be the best display settings on zelly cream to get a good battery backup?
Click to expand...
Click to collapse
disable als an try to keep screen brightness to a minimum level according to your need
disable crt off animation if you use it
disable screen auto rotation
I use display settings as 'Adapt to lightning conditions' in power saver mode. Still my screen uses almost 60 % of battery. Any suggestions please.
Sent from my MT11i using xda app-developers app
and always i see a message reading unfortunately xperia tm closed and messaging closed etc etc what wud be the reason?
shall i reinstall zelly cream?
Samanthg said:
and always i see a message reading unfortunately xperia tm closed and messaging closed etc etc what wud be the reason?
shall i reinstall zelly cream?
Click to expand...
Click to collapse
an unstable rom
bad zip or improper flashing
unstable kernel
can anyone give me the process of downgrading from zellycream to ics??
Samanthg said:
can anyone give me the process of downgrading from zellycream to ics??
Click to expand...
Click to collapse
ics??
you mean stock ics
it's not possible if you have unlocked your bootloader by official method
you can do it if you have unlocked via test point method
just you have to relock the bootloader
and repair via sus
avinashrocks1990 said:
ics??
you mean stock ics
it's not possible if you have unlocked your bootloader by official method
you can do it if you have unlocked via test point method
just you have to relock the bootloader
and repair via sus
Click to expand...
Click to collapse
And why do you think goin back to stock Ics ain't possible on Unlocked bootloader???
Its possible
No need to 'relock bootloader
Just flash the stock fw n you should be back to stock ics!
Sent from my MT11i using xda premium
Ghostfreak NB said:
And why do you think goin back to stock Ics ain't possible on Unlocked bootloader???
Its possible
No need to 'relock bootloader
Just flash the stock fw n you should be back to stock ics!
Sent from my MT11i using xda premium
Click to expand...
Click to collapse
coz i have bricked my phone doing that(the only bricking that i have faced)
may be some issue of drm key
correct me if i'm wrong
avinashrocks1990 said:
coz i have bricked my phone doing that(the only bricking that i have faced)
may be some issue of drm key
correct me if i'm wrong
Click to expand...
Click to collapse
Nope nothing related to drm
Flashtool works on locked or unlocked both without any partiality
You might have messed it up yourself accidentally
There's no reason for stock ics to not get flashed on either locked or unlocked bootloader
And just for the record,I've done it on my phone n my friends phone too
Sent from my MT11i using xda premium
Ghostfreak NB said:
Nope nothing related to drm
Flashtool works on locked or unlocked both without any partiality
You might have messed it up yourself accidentally
There's no reason for stock ics to not get flashed on either locked or unlocked bootloader
And just for the record,I've done it on my phone n my friends phone too
Sent from my MT11i using xda premium
Click to expand...
Click to collapse
+1.. U will brick if u do ota or use pc companion.. If u use flashtool and flash. Ftf of stock.. There is no brick..
Sent from my MT11i using xda premium
guys im new to these stuff so please help me to go back to ics..
my phone is sony ericsson xperia neo V
phone is rooted and bootloader is unlocked..
Samanthg said:
guys im new to these stuff so please help me to go back to ics..
my phone is sony ericsson xperia neo V
phone is rooted and bootloader is unlocked..
Click to expand...
Click to collapse
Flash stock firmware with flashtool... You will go back to stock...
Sent from my Neo V using xda-developers app
Attitude.SSJ said:
Flash stock firmware with flashtool... You will go back to stock...
Sent from my Neo V using xda-developers app
Click to expand...
Click to collapse
can you please elaborate it..?? do you mean .587 ftf file?
---------- Post added at 10:05 AM ---------- Previous post was at 10:00 AM ----------
can you provide me the step wise instructions and download link of that stock kernel please?

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