Fastboot Android-product-out Not Set (2025)

fastboot flash boot /full/path/to/boot.img This is often the quickest workaround if you’re only flashing one or two partitions. If you compiled Android from source, the build system already knows where your images are. Navigate to your Android root directory and run:

set ANDROID_PRODUCT_OUT=C:\path\to\your\images\folder

source build/envsetup.sh lunch <your_device_choice> After that, the variable is automatically set. You can verify with: fastboot android-product-out not set

echo $ANDROID_PRODUCT_OUT After setting the variable, test it:

export ANDROID_PRODUCT_OUT=~/android/out/target/product/raven fastboot flash boot /full/path/to/boot

echo 'export ANDROID_PRODUCT_OUT=~/android/out/target/product/raven' >> ~/.bashrc source ~/.bashrc Just remember to update the path when you switch devices or build new images. The ANDROID_PRODUCT_OUT not set error is simply Fastboot’s way of saying, “I don’t know where your images are.” It’s not a bug or a driver issue—just a missing pointer. Whether you set the variable, use absolute paths, or source your build environment, you’ll be flashing again in seconds.

fastboot getvar product If that works without errors, you’re good to go. If you constantly work with Fastboot and AOSP, add the export line to your shell configuration file ( ~/.bashrc , ~/.zshrc , or ~/.profile on Linux/macOS). For example: You can verify with: echo $ANDROID_PRODUCT_OUT After setting

fastboot flash boot boot.img Use:

If you’ve ever tried to flash a custom ROM, kernel, or system image onto an Android device using Fastboot, you might have run into this frustrating line in your terminal: