Sony XPERIA Z3 – Android 6.0.1 – 23.5.A.1.291

Sony XPERIA Z3 is Sony Mobile flagship 2014. It has luxury 5,1 inch FullHD display, powerfull quadcore CPU from Qualcomm, 3 GB RAM or 20,7 megapixel camera. Sony XPERIA Z3 is also water resistance. Below you can find the latest firmware (official Android 6.0.1 Marshmallow) for the phone and also many tutorials/manuals.

First of all one important thing – before you start to do anything with your phone, do the backup of your personal data. It is only for your safety in case that something goes wrong or any mistake happens. In that case you can use the backup to restore the data and try to do everything once again. Each tutorial has been done many times to verify its propriety, so just read carefully all instructions and continue step by step. The major part of every file has been created by myself and every file has been tested on the corresponding phone. All referenced files are determined for Sony XPERIA Z3.

Install firmware for Sony XPERIA Z3
a) download and install latest Flashtool
b) download OS for your Sony XPERIA Z3 (you can choose from list below)
b1) download Android N for Sony XPERIA Z3 D6603 (NPD56N)
b2) download Android 6.0.1 for Sony XPERIA Z3 D6603 (23.5.A.1.291)
b3) download Sony Android Concept for Sony XPERIA Z3 D6603
b4) download Android 5.1.1 for Sony XPERIA Z3 D6603 (23.4.A.1.264)
b5) download Android 5.0.2 for Sony XPERIA Z3 D6603 (23.1.A.1.28)
b6) download Android 4.4.4 for Sony XPERIA Z3 D6603 (23.0.1.A.5.77)
c) open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok. Important – if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All data will remain in your phone, but sometimes it can cause additional troubles. So it is better (and I recommend that) to do the backup of your personal data, than proceed with clean instalation and then restore your personal data.
d) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button
e) after few minutes all is done and your phone gets the new firmware

Root Sony XPERIA Z3 with locked bootloader (and than install the newest Android and recovery)
a) before you start to do anything, backup all your user data and media files, because you will lost it and charge your phone
b) download and install latest Flashtool
c) download this FTF file and flash it with Flashtool to you smartphone (it is important to Wipe data or your phone will not boot)
d) start your smartphone and enable developer options and usb debugging, also enable mock location
e) in security settings, enable unknown source
f) download this root package and unzip it in your computer (alternative you can download this)
g) connect your smartphone to your computer and go to Flashtool folder, X10flasher lib
h) hold shift button and right click with mouse, open command line and type adb devices
i) allow usb debugging on display your phone (steps g-h are not important, but it is better to check it)
j) if result is some kind of number, close command line and run install.bat inside root package from step f)
k) wait after root procedure is done, sometimes it is need to run it more than once (wait until you see SuperSU in your phone)
l) download recovery for your phone from this site (select XZDualrecovery, than latest version and than Z3 installer)
m) unzip this file, connect your smartphone to computer and run installation, choose first option and than allow SuperSU
n) after some time you will get new icon in your phone, now you have recovery and root (but with old firmware)
o) now you need to flash prerooted zip file thru recovery mode and there are two options (steps p or q)
p) download it from internet, you can try to find it here or Google XPERIA Z3 (firmware you want number) prerooted zip
q) make it by yourself, it is very easy and fast, i will show it to you here
r) after you have this prerooted zip file, push it to your smartphone
s) start recovery mode (from NDRUtils application in your phone) reboot to primary recovery
t) install your prerooted zip file (install ZIP and navigate to your file), than Wipe Cache and Dalvik Cache and power off your phone
u) sometimes this can be enough, but i really recommended last steps, it is better for your phone
v) download corresponding firmware (same version as is your prerooted zip file), you can also make FTF yourself with this video
w) flash this FTF file with Flashtool once more, but exlude system and partition
x) after it finished, turn on your smartphone
y) you are on firmware version you chose with root and recovery mode and with locked bootloader
z) when Sony Mobile company release new firmware, you can repeat this tutorial from step o), just change prerooted zip and than FTF