Android setup and settings

Basic knowledge of smartphones


Basic knowledge of mobile phone communication standards and frequency bands

Smartphone communication standards and frequency bands Next-generation communication standards 5G do not switch to 4G when radio waves weaken, and the device continues to search for 5G radio waves and communication stops. There is, but it is […]


Imported smartphones that violate the Radio Law

Use of overseas smartphones that may violate the Radio Law SIM-free smartphones are often released in Japan and global models even if they are the same model, and parallel imports sold on Amazon etc. and EXPANSYS ・ E [… ]



How to set a static IP address for your Android device

Use a static IP for Wi-Fi on your Android device If your Android device cannot connect to a network without Internet access when connecting to Wi-Fi, you can temporarily […]


Android App Data Collection and Privacy

Permissions for Android apps that are important for privacy protection Many apps that are provided free of charge display advertisements, but the collection of personal information is also subject to revenue, so information that is not directly related to the app's functions is not included. […]


Android security issues and support period

Android security support where fragmentation is a problem The Android OS installed in smartphones and tablets is an open source Android OS developed by Google. […]


How to use Android to Flash Tool

Flashback Google Pixel to factory image Google has released a factory image for devices released by Google after Google Pixel 2, and Lineag […]



/e/OS installation and configuration

The open source de-Google OS /e/OS that eliminates Google's surveillance from Android is an open source model that prioritizes privacy protection developed by the non-profit project e Foundation […]


Installing and configuring LineageOS

An open source OS that can reuse unsupported Android devices LineageOS is an Android-based OS developed by the LineageOS open-source community […]


LineageOS setup

Setup procedure after installing LineageOS and Japanese IME installation LineageOS has a slightly different setup depending on whether Google App is installed or not, but Japanese IME must be installed […]


LineageOS upgrades and security updates

LineageOS major version upgrade and security patch update method The LineageOS updater does not support the installation of major upgrades, and the monthly security patch is also available […]

Android x86


How to use Advanced Android-x86 Installer For Windows

Installer that can install Android x86 and Bliss OS from Windows Advanced Android-x86 Installer For Windows is Supreme-Gam […]


Bliss OS for PC installation and configuration

Android OS Bliss OS for PC, which is more compatible with ARM apps than Android x86 and provides security updates, is a non-profit organization 501 (C3 […]


Android x86 installation and configuration

Android-x86, an open-source Android OS that can be installed on a PC, is Android-x86 Open Source launched by Chih-Wei Huang and Yi Sun of Taiwan.


Android x86 updates and upgrades

How to update and upgrade Android x86 running on PC Android x86 is the most released because there is no security patch delivered by OTA (Over The Air) […]


Remix OS installation and configuration

Android-x86 OS that runs Android apps on a PC July 2017, 7 Team Jade, which develops Remix OS, announced the end of development of Remix OS for […]

Amazon Fire


How to change the home app on your Amazon Fire tablet

Modify your Amazon Fire tablet home app with Launcher Hijack Launcher Hijack is an open source program developed by Ethan Nelson that automatically […]


How to use the Play Store on your Fire tablet

7.3th Generation and Later Fire Tablets with Fire OS 9 on Android Fire Tablet App Store is a service provided by Amazon such as browsers and e-readers […]


Install Play Store on 7th Generation Fire

How to use the Google Play store on Amazon Fire The Fire tablet app store basically provides alternative apps for services provided by Amazon such as browsers and e-book readers […]


Install Play Store on 5th Generation Fire

Install Google Play Store on 5th generation Amazon Fire Fire tablet app store is basically a substitute app for services provided by Amazon such as browsers and e-book readers […]