Transform Your Old Smartphone into a Pocket Cyberdeck with Kali NetHunter

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Tutorial on how to 3D-print a minimalist palmtop-style case for Google Pixel 3 XL and install Kali NetHunter on it with a custom kernel.
Read the full guide here

You Should Know:

Prerequisites:

  • Google Pixel 3 XL (or any compatible Android device)
  • Unlocked Bootloader (Check via fastboot oem device-info)
  • Custom Recovery (TWRP)
  • Kali NetHunter Image (Download from Offensive Security)

Steps to Install Kali NetHunter:

1. Enable Developer Mode & OEM Unlock:

adb reboot bootloader 
fastboot flashing unlock

2. Flash TWRP Recovery:

fastboot flash recovery twrp.img 
fastboot boot twrp.img

3. Install NetHunter via TWRP:

adb push nethunter.zip /sdcard/ 
 In TWRP, select Install → nethunter.zip → Swipe to Flash

4. Flash Custom Kernel (Optional for Performance):

fastboot flash boot custom_kernel.img

Essential NetHunter Commands:

  • Wi-Fi Attacks:
    airmon-ng start wlan0 
airodump-ng wlan0mon
  • Metasploit Framework:
    msfconsole 
use exploit/multi/handler 
set payload android/meterpreter/reverse_tcp 
exploit
  • NMAP Scanning:
    nmap -sV 192.168.1.1

Post-Installation Tweaks:

  • Enable SSH Access:
    service ssh start
  • Update Kali Tools:
    apt update && apt full-upgrade -y

What Undercode Say:

Turning an old smartphone into a Kali NetHunter cyberdeck is a game-changer for penetration testers. It allows on-the-go security testing with a pocket-sized device. The custom kernel ensures better hardware compatibility, while 3D-printed cases add durability.

Expected Output:

  • A fully functional Kali NetHunter device with Wi-Fi hacking, Metasploit, and NMAP scanning capabilities.
  • A portable penetration testing toolkit that fits in your pocket.

Prediction:

As mobile hardware improves, we’ll see more smartphone-based cyberdecks replacing traditional Raspberry Pi setups for lightweight ethical hacking. 5G-enabled devices could further enhance real-time exploitation in red team operations.

Expected Output:

[+] Kali NetHunter Installed Successfully 
[+] Wireless Adapter: wlan0mon (Monitor Mode Enabled) 
[+] Metasploit Payload Handler: Running on Port 4444 
[+] NMAP Scan Completed: 192.168.1.1

IT/Security Reporter URL:

Reported By: Lukasstefanko Nethunter – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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