TWRP

Team Win Recovery Project (TWRP) is an open-source software custom recovery image for Android phones, tables, and other devices running the Android operating system. The bootload interface allows users to install third-party firmware and back up the current system.

According to the developers there are about 450 devices supported by TWRP.

TWRP gives users the option to fully back up their device (including bootloader, system data, private applications, etc.) to revert to at any time, and a built-in file manager to delete files that may be causing problems on the device or add some to fix issues.

TWRP recovery has replaced the ClockworkMod recovery (CWM) as the most popular custom recovery and remains so 2016-2019. TWRP was developed in 2011 and over the years has evolved into including more features than any similar utility.

TWRP 3.3.0+ Ramdisk Install

With the release of version 3.3 are some new features. One important change is better support for new Android devices with A/B partitions. Currently, installing TWRP on a device with A/B partitions requires booting TWRP temporarily and then installing it permanently using an installer script. Going forward, users will be presented with a new “install recovery ramdisk” option in recovery.

• TWRP can use /data/cache/recovery and /persist/cache/recovery on AB devices with no cache partition (bigbiff)

Installation

You can install TWRP directly to your Android device or launch it in a temporary way via USB connection between your device and a computer.

A/B Partition Devices

With version 3.3.x on an A/B partition device you will see an "install recovery ramdisk" option when booting TWRP that doesn't require a separate installer script.

The official TWRP installer ZIP by default installs to both boot_a and boot_b.

NANDroid backup

The backup function of TWRP allows you to create a comprehensive backup of your device. TWRP names the backup according to the date and time of the backup.

Un-Brick device

Option boot into EDL mode is Emergency Download (EDL) mode.