Once the download is complete, open the APK from your browser’s downloads or a file manager. If Android asks for permission, allow installs only for the app opening the file. You can turn this permission off again in Settings after installation. Menu names vary by phone; follow what your system displays.
A 64-bit processor doesn’t guarantee that the system can run 64-bit apps. Some older devices use different system builds, so the phone’s release year alone isn’t enough to determine compatibility. If the arm64 package won’t install, read the system message and try the universal build only if it reports an incompatibility. Don’t keep downloading the same file.
After installation, open Subscription Group Settings, enter a name and subscription URL, save, then return to the main screen and update the subscription. Once profiles appear, select one and tap Connect. Approve the system prompt the first time you use VPN mode. If another VPN connection is already active, decide which one to keep; typically, only one VPN service can be active for a user at a time.
v2rayNG and v2flyNG use different core families, so similar interfaces don’t guarantee that configurations are interchangeable. Check core support especially for VLESS, REALITY, and newer transport fields. You don’t need to run both clients at once. To compare their differences, see a side-by-side comparison of three clients.