Installing NetHunter on the Gemini PDA

From unpacking to running NetHunter in 4 steps:

1. Flash stock rooted Android image
2. (Re-)install Magisk Manager to finish root
3. Install TWRP recovery
4. Install NetHunter

1. Flash stock rooted Android

The Gemini PDA ships with a non-rooted Android image which needs to be replaced. Either install the "Pentester Pro" image with rooted Android and Kali Linux partitions as detailed here: https://docs.kali.org/kali-on-arm/kali-linux-gem-pda

Or create you own image if you prefer a different partition layout: http://support.planetcom.co.uk/index.php/Linux_Flashing_Guide

Reboot the newly imaged Gemini into Android and:

• Configure the keyboard
• Connect to wifi
• Open the "Play Store" app and sign in with your google account
• Update all apps

2. (Re-)install Magisk Manager to finish root

The Gemini requires a particular Magisk Manager versions to work properly but the build in app shortcut installs the latest version, which is incompatible. Let's install the proper version manually:

• uninstall the existing Magisk Manager
• download Magisk Manager v6.1.0 from https://github.com/topjohnwu/Magisk/releases
• goto "security" settings and turn on "allow installation of apps from unkown sources"
• install magisk manager apk from the download folder
• open Magisk Manager, say "no" to update and disable "Check Updates" in settings
• Exit Magisk Manager

3. Install TWRP recovery

• install the "Official TWRP App" from Playstore
• open the "Official TWRP App"
• select your account
• tick "I agree", "Run with root permissions"
• press "OK"
• press "TWRP Flash"
• press "ok when prompted for allowing root access
• If superuser permissions are not granted automatically, open Magisk Manager and enable TWRP manually
• Select device "Planet Gemini PDA -- geminipda"
• select latest version
• download image
• go back
• select image
• Flash to recovery

4. Install NetHunter

• Download the nethunter beta image from here: http://http.re4son-kernel.com/downloads/gemini-nethunter/
• connect the Gemini PDA to your computer
• transfer the nethunter image to the Gemini PDA
• reboot the Gemini PDA into recovery via the "Official TWRP App" (TWRP Flash->Menu->Reboot-Reboot Recovery)
• press "Install"
• select the nethunter image
• swipe to confirm flash
• reboot
• start the "NetHunter" app
• click "allow" seven times and allow root access
• let setup finish
• reboot

Enjoy Kali Nethunter on the Gemini PDA