pkg install fails with "Unable to locate package". Solution:
python -m http.server 8080 Access from any browser on the same network at http://<device-ip>:8080 . Use termux-sensor (part of Termux:API). Note: CustTermux might not include Termux:API by default. Install it:
ssh android-device-ip -p 8022 CustTermux may lack locales. Suppress warnings by: CustTermux-4.8.5-android-5-universal-compatible...
pkg update pkg upgrade If still failing, check DNS ( ping google.com ). Android 5 sometimes has broken DNS over mobile data. Because resources are limited, install carefully:
pkg install termux-api Then read accelerometer data: pkg install fails with "Unable to locate package"
export LANG=en_US.UTF-8 echo "export LANG=en_US.UTF-8" >> ~/.bashrc Project 1: Old Phone as a Network Monitoring Tool Install tcpdump and nmap :
pkg install tcpdump nmap Monitor local network: Note: CustTermux might not include Termux:API by default
fills that void. It is a community-maintained or individually forked version of Termux, backported to API level 21 (Android 5.0) while keeping the core functionality of Termux 0.118 and above. The “universal-compatible” tag implies it bundles multiple ABIs ( armeabi-v7a , arm64-v8a , x86 , x86_64 ) into a single APK, eliminating the “wrong architecture” errors common with older forks.