Start from the Android section on the download page before installing KuaiLian VPN. APK links, store availability, and compatibility notes can change, so this guide focuses on the checks that stay useful even when the current channel changes.
A small but common trap: Android grants sideload permission to the app that opens the APK. If you downloaded with Chrome but opened the file from a file manager, you may need to approve the file manager, not Chrome. Turn that permission off again after installation.
Before You Install the APK
Check the source
Use the download page or the currently indicated official channel. Avoid reposted APK files from chat groups, cloud drives, and download ads because you cannot verify whether the package was modified.
Check device basics
Make sure your Android or HarmonyOS device has enough free storage and a supported system version. If the download is interrupted or the file size looks suspicious, delete it and download again.
Approve sideloading only temporarily
When Android blocks the installation, open the system prompt and allow installation from the current browser or file manager. After KuaiLian VPN is installed, disable that permission again.
Installation Steps
- Open the Android download section and read the current source note.
- Save the APK to your device.
- Open the downloaded file from notifications or your file manager.
- Approve temporary installation permission if Android asks for it.
- Open KuaiLian VPN and allow the VPN configuration prompt when you are ready to connect.
If Android Installs but Does Not Connect
Test a normal webpage without the VPN, then switch between Wi-Fi and mobile data. If only one network fails, the issue is likely network-side. If the app came from an old or unofficial APK, reinstall after checking the current download page.