Android
System requirements
Section titled “System requirements”- Android 4.0 or newer (works on most phones from 2010+)
- Internet connection (WiFi or mobile data)
- Telegram app (to get your connection key)
Installation
Section titled “Installation”If you have Google Play
Section titled “If you have Google Play”- Open Google Play Store on your phone
- Search for “HAPP” or follow this link: HAPP on Google Play
- Tap Install
- Wait for installation to complete
- Tap Open
If you don’t have Google Play (Huawei, older devices, etc.)
Section titled “If you don’t have Google Play (Huawei, older devices, etc.)”- Download the APK: HAPP.apk
- On your phone, open a file manager
- Find the downloaded file (usually in Downloads)
- Tap it to install
- Android may ask for permission — tap Install anyway or Install
- Once installed, tap Open
Getting your connection key
Section titled “Getting your connection key”- Open Telegram on your phone
- Find @SideLinQ_bot
- Tap “Connect”
- The bot sends you a long key that starts with
happ:// - Long press the key and tap Copy — or use the copy icon if shown
Importing the key into HAPP
Section titled “Importing the key into HAPP”- HAPP is open on your phone
- Look for a + button at the bottom
- Tap + Add Configuration
- Tap Paste (it should auto-paste your key from clipboard)
- Review the settings that appear (optional)
- Tap Save or Confirm
HAPP now shows your list of available servers. It picks the best one automatically.
Connecting
Section titled “Connecting”- Find the power button (⏻) on the HAPP screen
- Tap it
- HAPP may ask for permission to “Create a VPN connection” — tap Allow
- Watch the status change to Connected
- A VPN icon appears in your Android status bar (at the top of the screen)
That’s it. All apps on your phone now use SideLinQ.
Permissions HAPP needs
Section titled “Permissions HAPP needs”When you first connect, Android asks for permissions. Here’s what each does:
- VPN access — Required for the connection to work. This is normal.
- File access — To import/export configurations (optional)
- Device location — To show which server is closest to you (optional)
You can allow or deny optional permissions. The VPN access permission is required.
Verify it’s working
Section titled “Verify it’s working”- Open a web browser
- Go to whatismyipaddress.com or ipleak.net
- Your IP should show a different country
- Before connecting, visit the same site and compare — your real IP will be different
Managing your connection
Section titled “Managing your connection”Disconnect temporarily
Section titled “Disconnect temporarily”Tap the power button (⏻) again. The VPN icon in your status bar disappears.
Switch servers
Section titled “Switch servers”- In HAPP, tap the name of the current server
- Choose a different location
- HAPP reconnects automatically
Change apps that use SideLinQ
Section titled “Change apps that use SideLinQ”By default, all apps use SideLinQ. Some devices let you choose per-app in Android settings, but this is rarely needed.
Troubleshooting
Section titled “Troubleshooting”HAPP won’t paste the key
Section titled “HAPP won’t paste the key”Try this:
- Long-press the key in Telegram
- Tap “Copy” directly
- Switch back to HAPP and paste
Or use the manual method:
- In Telegram, tap the three dots (⋯) on the bot’s key message
- Copy it from there
The app connects but sites are slow
Section titled “The app connects but sites are slow”Try a different server:
- In HAPP, tap the server name at the top
- Switch to a server in a different region
- See if it’s faster
It keeps disconnecting
Section titled “It keeps disconnecting”This usually means:
- Weak WiFi: Move closer to your router
- Mobile data switching: Try WiFi-only for now
- Too many apps running: Close some apps and try again
- HAPP version is old: Check for updates in Google Play
Try restarting HAPP: Disconnect, wait 3 seconds, tap the power button again.
Android kills the app in the background
Section titled “Android kills the app in the background”Some phones (especially ones with custom ROMs) kill background apps to save battery. To prevent this:
- In Android Settings → Apps → HAPP
- Look for “Battery optimization” or “Background restrictions”
- Set HAPP to “Don’t optimize”
Sites say I’m using a VPN
Section titled “Sites say I’m using a VPN”That’s expected — you are. Some sites (streaming services, banks) may limit access. If this happens, contact support on Telegram.
Still stuck? Visit @SideLinQ_chat for help.