Brickproof denniz bash script

flash_brickproof_denniz.sh

#!/bin/bash

echo "[i] Bulletproof denniz script, Giovix92"
echo "[i] Checking for adb connection..."

if adb get-state &> /dev/null; then
    echo "[i] Device is connected, rebooting in fastboot"
    adb reboot fastboot
else
    if fastboot devices | grep -qw "fastboot"; then
        echo "[i] Device is connected in bootloader mode, rebooting in fastboot"
        fastboot reboot fastboot &> /dev/null
    elif fastboot devices | grep -qw "fastbootd"; then
        echo "[!] Device is already in fastbootd mode"
    else
        echo "[!] Device is not connected, please connect the device and try again"
        exit 1
    fi
fi

echo "[i] Flashing C.01 preloader"
fastboot flash sda preloader_ufs_c01.img &> /dev/null || echo "[!] Failed to flash sda!"
fastboot flash sdb preloader_ufs_c01.img &> /dev/null || echo "[!] Failed to flash sdb!"

echo "[i] Flashing A.20 bootloader"
fastboot flash lk lk_a20.bin &> /dev/null || echo "[!] Failed to flash lk!"
fastboot flash lk2 lk2_a20.bin &> /dev/null || echo "[!] Failed to flash lk2!"

echo "[i] Rebooting..."
fastboot reboot &> /dev/null