It will remove all the data ,contacts and apps that you installed
How to Enter Recovery Mode on Xperia Z1
Enter recovery mode using classic method – recommended for entry level users
Take your Xperia Z1 and turn it off – that can be achieved by pressing the power button once and then by selecting “power off”; also you can press the power button for about 15 seconds and then you phone will be powered off.
Now, turn on your smartphone, but when its LED notification light turns Pink (or any oother color in that matter) press volume up or volume down button for a couple of times until the recovery mode is being displayed.
You can use the volume up / down buttons in order to scroll up and down on the recovery mode menu and the power key to select.
You can go back to Android OS by selecting “reboot system now”.
Enter recovery mode using ADB commands – for advanced users and only if you can’t use the classic method
First of all, now you will need to use a computer.
On the PC the Xperia Z1 drivers must be installed.
Also, you need to install Android SDK – install Android SDK on Windows or set ADB on MAC OS X / Linux.
On your phone USB debugging option must be enabled; in order to do so head to “menu –settings – developer options”.
Also enable developer option on your Android device by going to path “menu – settings – about phone – tap build number seven times”.
Connect your Xperia Z1 with your computer – use the USB cable for establishing the connection properly.
Now, go to the folder where you have installed ADB and there open a command prompt window.
On the mentioned cmd window type adb reboot recovery.
How to fix soft bricked Sony Xperia Z1
On your computer download the latest version of Fastboot (from here) and the stock Android OS firmware.
Install Fashtool on your computer by following the on-screen prompts.
Also install Fashtool drivers on your computer.
Now go to the fashtool folder and copy-paste the software file on the firmware section.
Run flashtool on your computer.
Turn off your Xperia Z1 and enter it in fastboot mode.
Connect your handset with your computer by plugging in the USB cord.
From Flashtool click on the thunderbolt icon and make sure that flashmode is selected.
Now select the stock firmware.
Click on “flash” and wait while the software is being applied on your device.
How to fix hard bricked Sony Xperia Z1
Again, download the latest version of flashtool on your computer and the stock firmware (see the guide from above).
Since your device is hard bricked you need to flash everything except the system.
Thus install using flashtool the KERNEL, ELABEL, BOOTBUNDLE, AND BASEBAND so that there is no risk of a mismatch.
So, do that by using the mentioned program, just like I have showed you during the previous install operation.
For more info check our source page from here.
Sony Xperia Z1 Restore Factory Hard Reset Format Phone.So lets start the Sony Xperia Z1 Restore Factory, Sony Xperia Z1 Hard Reset.Turn Off the mobile phone for few mints.Sony Xperia Z1 Remove Pattern Lock.
If You Forgot Your Screen Lock Combination Or Password Follow These Steps.
Warning !All Data Will Be Lost!
Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.