This guide assumes you are starting from a stock or custom environment with an unlocked bootloader. We will use Fastboot to flash the recovery image.
fastboot reboot recovery
Or manually: after flash, use volume keys to select Recovery mode.
fastboot devices
(should show your device serial)
Cause: Outdated Platform Tools or wrong syntax.
Fix: Update to the latest Platform Tools. Try fastboot flash recovery_a recovery.img or fastboot flash recovery_b recovery.img for A/B devices.
A: Very similar. crDroid Recovery is forked from LineageOS Recovery but includes device-specific patches for crDroid’s custom kernel and vendor changes.
Think of your Android device as a house. The operating system (Android) is the furniture and decor. The Recovery Image is the construction crew.
The stock recovery that comes with your phone is a minimalist crew—they can only install official updates and wipe the floor clean. A Custom Recovery (like TWRP or the crDroid recovery) is a specialized crew equipped with power tools. They allow you to:
Crucial Note: crDroid often provides its own recovery image built specifically for the ROM. Using the recommended recovery ensures the best compatibility and features (like ADB Sideload).
After flashing, directly boot to recovery to prevent stock recovery overwrite:
fastboot reboot recovery
Alternatively: Use volume keys to select "Recovery mode" from bootloader menu.
crDroid Recovery lacks full backup features (unlike TWRP). However, you can use adb backup or fastboot to pull critical partitions:
adb pull /dev/block/by-name/boot boot.img