Extract modem.bin Images From Standard Android system.img

Howto Extract modem.bin

Getting a modem.bin from a standard system.img is straight forward:

1. If using debian, install sim2img to convert sparse images to images

sudo apt install simg2img

2. Convert the sparse image to image

simg2img system.img system.raw

3. Mount the image

mkdir image
sudo mount -o loop $(pwd)/system.raw $(pwd)/image/

4. Find modem.bin

cd image/vendor/firmware