What you need

Before adding your subscription link, make sure you have:

  1. A SericaVPN account with an active subscription. If you do not have one yet, see How to subscribe
  2. Your subscription link copied to your clipboard. See How to get your subscription link
  3. A VPN app installed on your device. See Supported platforms for download links

In Happ (all platforms)

  1. Open Happ
  2. Click or tap Settings (the gear icon, usually in the top right corner)
  3. Go to the Subscription tab
  4. Click or tap Add from URL
  5. Paste your SericaVPN subscription link (you copied it from your dashboard)
  6. Click or tap Add
  7. Click or tap Update

The app will fetch your server list. This usually takes 3 to 5 seconds. Once loaded, you will see a list of server regions with ping times.

In v2RayTun (all platforms)

  1. Open v2RayTun
  2. Click or tap Subscription at the top of the window
  3. Paste your SericaVPN subscription link into the URL field
  4. Click or tap Update

The app will download your server list.

In v2rayN (Linux only)

  1. Open v2rayN
  2. Go to the menu and click Subscription, then Add
  3. Paste your SericaVPN subscription link into the URL field
  4. Click OK
  5. Go back to Subscription and click Update

The app will fetch your server configurations.

After adding your subscription

Once your server list loads:

  1. Pick a server region from the list (the one with the lowest ping time is usually best)
  2. Click or tap Connect
  3. Wait for the status to show Connected

You are now protected. Your app will automatically update the server list in the background.

Auto-update

By default, Happ and v2RayTun automatically check for server list updates when you open the app. If you want to manually update:

  • Happ: Go to Settings > Subscription > click Update
  • v2RayTun: Click Subscription > click Update
  • v2rayN: Go to Subscription > Update

Troubleshooting

  • “Update failed” or “Network error”: See our Subscription link not loading guide
  • “Empty server list”: Your subscription link may have expired. Copy a fresh one from your dashboard
  • “Wrong servers showing”: You may have multiple subscriptions added. Remove the old one and re-add with your current link