[Q] Unlocking Bootloader - What is important?

WhiteNeo

Senior Member

Feb 13, 2013

2,448

4,097

• Apr 7, 2014

• #1

Hello everybody!
I have decided that I'm going to unlock my Xperia V's bootloader. Perhaps I will do so this weekend.
But I need some information on all this stuff.

First of all, what are the important things to do before unlocking? Like for example backup TA partition and so on. How do I do these things?

Also, can anyone provide me a failure-proof guide on installing an AOSP rom? I think I want to install this Carbon room that appeared today in the XV forums.
I am currently on unrooted stock 4.3 (had some issues with my recovery some time ago, so I had to reset..)

I would also appreciate a summary of what is NOT working currently in the 4.4 roms, and if Kitkat is already stable enough for daily use on our devices.. (And perhaps also what impact an AOSP rom has on performance in benchmarke etc.)

Also, which kernels do you recommend?

I know, it's a lot of questions, but I just want to make sure I don't brick my phone.. It's the first time for me messing around with bootloader unlocks. ^^

Any replies/ helpful links/ advice are greatly appreciated.
Thanks in advance!

Sent from my Xperia V using Tapatalk.

 

Last edited: Apr 7, 2014

WhiteNeo

Senior Member

Feb 13, 2013

2,448

4,097

• Apr 7, 2014

• #2

Ah, I forgot one question...
Does project butter work in 4.4 as well? Is it as smooth as stock 4.3?

Sent from my Xperia V using Tapatalk.

 

devilmaycry2020

Senior Member

Apr 27, 2013

1,399

248

• Apr 7, 2014

• #3

root your phone then use Backup-TA-9.10 to backup TA first then go to http://unlockbootloader.sonymobile.com/instructions and follow guide here. so you can unlock very easy

 

M

Mad Marty

Senior Member

Jan 20, 2011

278

94

• Apr 7, 2014

• #4

Don't forget that unlocking your phone also factory resets it so backup important stuff first.

Sent from my LT30p using xda app-developers app

 

WhiteNeo

Senior Member

Feb 13, 2013

2,448

4,097

• Apr 7, 2014

• #5

devilmaycry2020 said:

root your phone then use Backup-TA-9.10 to backup TA first then go to http://unlockbootloader.sonymobile.com/instructions and follow guide here. so you can unlock very easy

Click to expand...

Click to collapse

Mad Marty said:

Don't forget that unlocking your phone also factory resets it so backup important stuff first.

Sent from my LT30p using xda app-developers app

Click to expand...

Click to collapse

Alright.. And to root I'll have to go back to 4.1..

So, is this order correct?

-Optional Backup (don't know how to backup my apps without root tho. :/)
- Flash 4.1 ftf
- Root with Doomlord
- Backup TA
- Unlock BL
- Flash CM kernel (by the way.. How? i have never used this fastboot thing.)
- Enter recovery
- Flash rom zip



Still need some information about these kitkat roms, guys.. Any experiences? Any replies to my questions in op?

Sent from my Xperia V using Tapatalk.

 

devilmaycry2020

Senior Member

Apr 27, 2013

1,399

248

• Apr 8, 2014

• #6

WhiteNeo said:

Alright.. And to root I'll have to go back to 4.1..

So, is this order correct?

-Optional Backup (don't know how to backup my apps without root tho. :/)
- Flash 4.1 ftf
- Root with Doomlord
- Backup TA
- Unlock BL
- Flash CM kernel (by the way.. How? i have never used this fastboot thing.)
- Enter recovery
- Flash rom zip



Still need some information about these kitkat roms, guys.. Any experiences? Any replies to my questions in op?

Sent from my Xperia V using Tapatalk.

Click to expand...

Click to collapse

i think all app you can install again, backup only image, video, phone book.
the order is correct. i dont like to use AOSP rom cause the graphic interface not as good as sony.

 

WhiteNeo

Senior Member

Feb 13, 2013

2,448

4,097

• Apr 8, 2014

• #7

devilmaycry2020 said:

i think all app you can install again, backup only image, video, phone book.
the order is correct. i dont like to use AOSP rom cause the graphic interface not as good as sony.

Click to expand...

Click to collapse

Hm.. Which storage is wiped when unlocking? Internal storage only or also the sdcard?

Sent from my Xperia V using Tapatalk.

 

devilmaycry2020

Senior Member

Apr 27, 2013

1,399

248

• Apr 8, 2014

• #8

WhiteNeo said:

Hm.. Which storage is wiped when unlocking? Internal storage only or also the sdcard?

Sent from my Xperia V using Tapatalk.

Click to expand...

Click to collapse

nothing will be wipe mate. it restore the phone as like as flash new FW only

 

• 

Reactions: WhiteNeo

WhiteNeo

Senior Member

Feb 13, 2013

2,448

4,097

• Apr 8, 2014

• #9

devilmaycry2020 said:

nothing will be wipe mate. it restore the phone as like as flash new FW only

Click to expand...

Click to collapse

Well that's good.
Thanks for your help bro ^^

Sent from my Xperia V using Tapatalk.

 

WhiteNeo

Senior Member

Feb 13, 2013

2,448

4,097

• Apr 8, 2014

• #10

.. Still looking for some people that can give me some information on AOSP roms

Sent from my Xperia V using Tapatalk.

 

M

Mad Marty

Senior Member

Jan 20, 2011

278

94

• Apr 8, 2014

• #11

devilmaycry2020 said:

nothing will be wipe mate. it restore the phone as like as flash new FW only

Click to expand...

Click to collapse

Factory reset wipes everything, except SD. I don't know why you would say that 'nothing will be wiped'

WhiteNeo said:

.. Still looking for some people that can give me some information on AOSP roms

Sent from my Xperia V using Tapatalk.

Click to expand...

Click to collapse

Just check the 'Original Development' section. Whatever ROMs people like is down to personal preference/requirements, so we mostly suggest to just try them out yourself

Sent from my LT30p using xda app-developers app

 

Last edited: Apr 8, 2014

devilmaycry2020

Senior Member

Apr 27, 2013

1,399

248

• Apr 9, 2014

• #12

Mad Marty said:

Factory reset wipes everything, except SD. I don't know why you would say that 'nothing will be wiped'

Click to expand...

Click to collapse

sorry i forgot, i confuse between External SD card and internal storage

 

Last edited: Apr 9, 2014

WhiteNeo

Senior Member

Feb 13, 2013

2,448

4,097

• Apr 9, 2014

• #13

Mad Marty said:

Factory reset wipes everything, except SD. I don't know why you would say that 'nothing will be wiped'



Just check the 'Original Development' section. Whatever ROMs people like is down to personal preference/requirements, so we mostly suggest to just try them out yourself

Sent from my LT30p using xda app-developers app

Click to expand...

Click to collapse

There is no original development section for XV, but I checked several of the kitkat roms' threads.
The people there are complaining about bad standby time.. And that the roms are not suitable for daily use.
Would you agree that kitkat is not yet ready?

I don't care about minor bugs, but that bad battery life or a not working camera (just an example) would not really encourage me to install 4.4

Sent from my Xperia V using Tapatalk.