dfu.sh

# DFU restore using idevicerestore
# adopted from:
# https://tg.st/u/idevicerestore_quickstart.txt


# step 0: clean debian install on host

# step 1: download ipsw from:
# https://ipsw.me/product/Mac
# do this NOW bc it takes forever
IPSW_PATH="~/Downloads/UniversalMac_12.3_21E230_Restore.ipsw"

# step 2: install idevicerestore:
# bc libimobiledevice can't be bothered to package

sudo apt install build-essential checkinstall \
    git autoconf automake libtool-bin \
    libreadline-dev libusb-1.0-0-dev libplist-dev libcurl4-openssl-dev \
    libssl-dev libzip-dev zlib1g-dev libusbmuxd-dev \
    python python3 python3-distutils cython3 python-dev

for name in usbmuxd libplist libimobiledevice-glue libimobiledevice libirecovery idevicerestore; do
    git clone https://github.com/libimobiledevice/$name.git && \
    cd $name && ./autogen.sh && make && sudo make install && cd ..
done

# make sure everything works
sudo ldconfig && idevicerestore --version

# step 4: put mac in DFU mode
# for 2020 M1s: follow the counts @ 2:25
# https://www.youtube.com/watch?v=i5xmA3lDz3g

# step 5:
sudo idevicerestore --debug "$IPSW_PATH"

# caveats: i ended up doing
# sudo idevicerestore --latest
# which forced me to upgrade to ventura
# idk why but it doesn't seem to like downgrades "ios-style"