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Advanced Stock kernel (TWRP) & root for unlocked bootloader

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krabappel2548

Inactive Recognized Developer
Nov 15, 2011
6,445
16,111
Lommel
Hello everyone,

I present to you an advanced stock kernel with TWRP recovery for Z3 Tablet compact.

== Project status ==
Working:
- Recovery
- Stock rom
- Full root
- everything that's not in the "not working list"

== Download ==
- kernel: Xperia Z3 Tablet Compact Advanced Stock kernel

== Installation instructions: ==
- flash boot.img using fastboot
Don't try this when you don't know what you are doing!!

== Rooting: ==
- Enter recovery
- Choose to install SuperSU when rebooting to stock rom
- Click on notification about SuperSU installer
- Use TWRP as installation method
- SuperSu will automatically be installed :)

== Changelog ==
Code:
[QUOTE][B]== v1.0 ==[/B]
- Stock 23.0.1.A.0.167 fw[/QUOTE]

XDA:DevDB Information
Advanced Stock kernel (TWRP) & root for unlocked bootloader, Kernel for the Sony Xperia Z3 Tablet Compact

Contributors
krabappel2548
Kernel Special Features:

Version Information
Status: Stable

Created 2014-12-02
Last Updated 2014-12-02
 
Last edited:

pietr0

Member
Jun 4, 2008
46
9
Antwerp
Does this kernel work for all 3 flavours of the z3 compact tablet? I am asking is as I read that you are developing with the wifi only version while I have the lte (SGP621) version.
 
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krabappel2548

Inactive Recognized Developer
Nov 15, 2011
6,445
16,111
Lommel
Does this kernel work for all 3 flavours of the z3 compact tablet? I am asking is as I read that you are developing with the wifi only version while I have the lte (SGP621) version.

I'm not sure, I don't know what the differences in kernel, but I don't think they have a lot of differences and probably it should work :)

Sent from my C6903 using XDA Free mobile app
 
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Reactions: pietr0

Al Capino

Member
Sep 14, 2010
30
11
Great!

krabappel2548, great work men! :good::D
Very nice :)

Do you also know if the bootloader is still intact?
I ask this because the algorithms for noise reduction, Mira Cast and better pictures in lower light are protected by DRM and the process of unlocking the bootloader removes it from the software.
So basicly if the bootloader was unlocked we should also loose the named algorithms .
And you could loose waranty if you have to bring it back to the store for problems.
Of course not for Root/Custom ROM issues: That is still the responsibiliy of every user ;)

Edit: Did you know that you could earn money? They reward people who can root the Xperia Z3. For details see http://forum.xda-developers.com/z3-compact/general/bounty-root-unlocking-bootloader-method-t2940539

I'm not sure, I don't know what the differences in kernel, but I don't think they have a lot of differences and probably it should work :)

Sent from my C6903 using XDA Free mobile app
 
Last edited:

ejdan

Senior Member
Nov 8, 2014
77
41
Göteborg
I have installed the kernel and TWRP works fine.

The kernel seems to be the same as stock. The only difference I have found is that /system is rw from boot. If I
Code:
mount -o ro,remount /system
it becomes read only as expected. After this it is not possible to mount rw again (Operation not permitted) which is the same as stock.
 

pepporony

Senior Member
Aug 3, 2010
239
52
Thank you. Will try this if I decided to root.

Did you use to dev for Xperia S as well? Kinda remember back in those days.
 

krabappel2548

Inactive Recognized Developer
Nov 15, 2011
6,445
16,111
Lommel
Thank you. Will try this if I decided to root.

Did you use to dev for Xperia S as well? Kinda remember back in those days.

Yeah, Xperia Neo => Xperia S => Xperia Z => Xperia Z1 and Z3 Tablet Compact now :)

But I had a break for a few months, recently started again :p

Sent from my C6903 using XDA Free mobile app
 

jaime4272

Senior Member
Jul 26, 2008
644
88
Earth
hack without root

Hey krabappel can an app be hacked without having root..?
I ask this because lucky patcher manage to hack an app and I have no root and locked bootloader.:confused:
 
Last edited:

bikeaholics

Senior Member
Apr 14, 2011
146
7
First thanks for your hard work. Now I have some questions.

Is the kernel for wifi version 16/32gb?

How to open the bootloader without loosing the specific sony bravia and drm files. To backup them would be nice.

Thanks a lot for your time and work
 

krabappel2548

Inactive Recognized Developer
Nov 15, 2011
6,445
16,111
Lommel
First thanks for your hard work. Now I have some questions.

Is the kernel for wifi version 16/32gb?

How to open the bootloader without loosing the specific sony bravia and drm files. To backup them would be nice.

Thanks a lot for your time and work

Before there is a root for locked bootloader you will always lose them.

Sent from my C6903 using XDA Free mobile app
 

xuggs

Senior Member
Aug 30, 2010
554
174
Question, Do you lose Sony's proprietary stuff when the bootloader is unlocked? Also, we will still receive software updates once unlocked and rooted? Thank you.

Sent from my NokiaX2DS using Tapatalk
 

ejdan

Senior Member
Nov 8, 2014
77
41
Göteborg
Question, Do you lose Sony's proprietary stuff when the bootloader is unlocked? Also, we will still receive software updates once unlocked and rooted? Thank you.

I am not sure about Sony proprietary stuff since I have not really used any of that. To me the tablet seems to work just fine after unlocking the bootloader.

Updates for the Sony applications like "Movies" are not working for me and it is probably caused by the unlocking. Waiting for CM12 so I can get rid of the Sony stuff...
 

krabappel2548

Inactive Recognized Developer
Nov 15, 2011
6,445
16,111
Lommel
Question, Do you lose Sony's proprietary stuff when the bootloader is unlocked? Also, we will still receive software updates once unlocked and rooted? Thank you.

Sent from my NokiaX2DS using Tapatalk

If you aren't on stock kernel OTA updates will fail to verify. When you flash back stock kernel from an FTF with Flashtool it should work I think. Don't update through pc though. Use ftf files for safe updates, since pc companion might have a risk of bricking the device

Sent from my C6903 using XDA Free mobile app
 

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  • 19
    Hello everyone,

    I present to you an advanced stock kernel with TWRP recovery for Z3 Tablet compact.

    == Project status ==
    Working:
    - Recovery
    - Stock rom
    - Full root
    - everything that's not in the "not working list"

    == Download ==
    - kernel: Xperia Z3 Tablet Compact Advanced Stock kernel

    == Installation instructions: ==
    - flash boot.img using fastboot
    Don't try this when you don't know what you are doing!!

    == Rooting: ==
    - Enter recovery
    - Choose to install SuperSU when rebooting to stock rom
    - Click on notification about SuperSU installer
    - Use TWRP as installation method
    - SuperSu will automatically be installed :)

    == Changelog ==
    Code:
    [QUOTE][B]== v1.0 ==[/B]
    - Stock 23.0.1.A.0.167 fw[/QUOTE]

    XDA:DevDB Information
    Advanced Stock kernel (TWRP) & root for unlocked bootloader, Kernel for the Sony Xperia Z3 Tablet Compact

    Contributors
    krabappel2548
    Kernel Special Features:

    Version Information
    Status: Stable

    Created 2014-12-02
    Last Updated 2014-12-02
    1
    Does this kernel work for all 3 flavours of the z3 compact tablet? I am asking is as I read that you are developing with the wifi only version while I have the lte (SGP621) version.
    1
    Does this kernel work for all 3 flavours of the z3 compact tablet? I am asking is as I read that you are developing with the wifi only version while I have the lte (SGP621) version.

    I'm not sure, I don't know what the differences in kernel, but I don't think they have a lot of differences and probably it should work :)

    Sent from my C6903 using XDA Free mobile app
    1
    I've flashed the kernel in fastboot, how do I then install superSU??

    Download it and flash in recovery or enter recovery, then reboot, it will ask to install supersu.

    Sent from my C6903 using XDA Free mobile app
    1
    I'm not sure, I don't know what the differences in kernel, but I don't think they have a lot of differences and probably it should work :)

    Sent from my C6903 using XDA Free mobile app

    I finally managed to unlock my tablet (Lte) and try your kernel. It works flawless. Thanks a lot for this.