[Sony Xperia ZL] [NUT]:
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Requirements:

Flashtool 0.9.16 by [MENTION=2807379]Androxyde[/MENTION]

XZDualRecovery 2.7.90 BETA or newer.

Current

rooted

FW version: 10.4.1.B.0.101.

Special features:

SuperSU integrated in system, FULL ROOT!

XZDualRecovery 2.7.123 BETA (CWM & PhilZ Touch & TWRP) pre-installed;

init.d support (read how to enable)

For both locked and unlocked bootloaders!

In the following guide I suggest you use an external SDCard but that's just good practice, you can use your internal storage or even an USB OTG storage device in TWRP if you like to install, that's no problem!... If you are modding and the likes, best is to have an external sdcard, just for safeties sake.

If you are unable to download torrent files directly, have http://zbigz.com/ do it for you!

How to update to 10.5.A.0.230:

Files (Find them on the DevDB Download tab!):

For C6502: Download C6502_10.5.A.0.230.flashable.zip (890MB) and C6502_10.5.A.0.230_Stripped.ftf (17MB)

For C6503: Download C6503_10.5.A.0.230.flashable.zip (902MB) and C6503_10.5.A.0.230_Stripped.ftf (17MB)

For C6506: Download C6506_10.5.A.0.230.flashable.zip (903MB) and C6506_10.5.A.0.230_Stripped.ftf (17MB)

Save them somewhere you remember;

Put 'C65XX_10.5.A.0.230.flashable.zip' on (the external) SDcard1;

Put 'C65XX_10.5.A.0.230_Stripped.ftf' inside the Flashtool/firmwares folder;

Create a backup of your phone in TWRP and don't forget to backup the contents of 'SDCard' (the internal storage!);

Flash 'C65XX_10.5.A.0.230.flashable.zip' in TWRP (if you notice your phone reboot during the update process, update to the latest XZDualRecovery and try again);

NOTE:

do not reboot

but go back to the main menu, then go to reboot->power off;

Flash everything in 'C65XX_10.5.A.0.230_Stripped.ftf' using flashtool;

Reboot to system.

The first boot will be slow and after some time at the boot animation you will see Android start optimizing the apps on your phone.

Enjoy! :laugh:

Known XZDualRecovery Issues:

Busybox Updater/Installer: If you have XZDualRecovery installed, un-install any Busybox updating app/tool as most if not all of them will install a version of busybox which does not support the lzma compression applets XZDualRecovery depends on. The version installed together with XZDualRecovery is very stable and I have yet to hear anyone complain about it's stability.

How to report errors:

Please, before shouting out "It doesn't work!!1!" or "I lost root!" or even "My phone reboots when remounting /system RW!!" try the following:

Restore any JB 4.2.2 FTF using any means you are familiar with so you can try again.

Root it using any means you are familiar with.

Install XZDualRecovery;

Update to 10.4.1.B.0.101;

Then try to update again using TWRP.

If it still fails something from there on: LOGS!!.

NOTE: The important ones can be found in /cache/recovery and in /sdcard1/XZDualRecovery, pack them up and send them to me or attach them to your bug report.

Thank you :)

XDA:DevDB Information

[STOCK][C650X][4.4] Update to 10.5.A.0.230 [Root & XZDR], ROM for the Sony Xperia ZL

Contributors

[NUT]

ROM OS Version: 4.4.x KitKat

ROM Kernel: Linux 3.4.x

Version Information

Status: Abandoned

Current Stable Version: 10.5.A.0.230

Stable Release Date: 2014-05-24

Created 2014-05-24

Last Updated 2014-08-20