Only for unlocked bootloader. TWRP is stitched into the FOTAKernel section. It downloads software updates downloaded "over the air." After unlocking the bootloader, this section is not needed and we use it as Recovery.
TWRP Recovery - an unofficial of Recovery, which is available for most devices running Android. It has much more features than the native of Recovery, which Sony is not available to the user at all. It allows you to install unofficial firmware, easy to install patches and patches in zip-format files, create a backup copy of the firmware and user data, do a factory reset (wipe data / factory reset), the cache cleanup (cache), dalvik Cache (Dalvik-cache ), much more. It has a built in file manager.
Comment. Android 8 encrypts user data in the data section. It changes with each Security Update, in English called security patch level. In order for the backup / restore function to work in TWRP recovery when updating the firmware, it is necessary to update and recovery. TWRP for the current security level supports all previous ones.
- Download the archive with ADB to the computertools_r28.0.0-windows.zip(1.79 MB)
twrp-3.2.3-0-poplar-1.img(29.19 MB)
and extract its contents to the adb folder in the root of drive C
- Download the image to the computertwrp-3.2.3-0-poplar-1.img(29.19 MB)
Place the image file in the folder C: \ adb
- Turn off the smartphone
- On the smartphone, hold down the volume up button and connect it to the computer with a USB cable. The smartphone will boot into Fastboot mode.
- To install the driver correctly on the computer: right-click on the start-up>device Manager ->find adb device ->right click to update the driver ->Run a search for drivers on this computer ->specify the folder with the driverXperia_XZ1_driver.zip(4.65 MB)
archive pre-unpack. If this driver does not catch up, try the following drivers:Fastboot + driver + Sony + v1.01.zip(1.27 KB)
,Leshcat-WinAll-drp.zip(8.49 MB)
- On the keyboard, press Windows + R
- In the window that opens, type cmd and press enter
In the command line that opens, type
The following should display: C: \ adb
Dial
fastboot flash recovery twrp-3.2.3-0-poplar-1.img
We are waiting for the end of the process
How to open TWRP Recovery? After flashing the custom Recovery, you can get into it from the switched off smartphone by holding the power button and lowering the volume: after a single vibration, release the power button, after the blue background appears, release the volume button.
Installation instructions for zip via TWRP Recovery - Copy the necessary zip-file to the built-in smartphone drive or memory card, open TWRP, go to the Install menu in the menu, open the file manager, select the file you need and click Install Zip. In this file manager, using the Select Storage button, you can switch between a memory card (sdcard) and a built-in storage device (Internal Storage).
DRM fix installation instructions - install using TWRP Recovery next
1-drmpatch.zip (513.57 KB)
This patch restores the performance of programs that have lost their functionality after unlocking the bootloader, i.e. programs dependent on DRM-keys. For example, a native camera.