Hi there! It sounds like you're running into an error "-1" when trying to log in, reset your password, or connect with the HeimLink app on your Android device. I'd be happy to help you get this sorted out.

First, can I ask:
- Are you trying to log in with your existing account credentials?
- Have you attempted to reset your password through the app, and what exactly happens when you try?
- Is your device connected to a stable Wi-Fi or mobile data network?

This info will help me guide you better.

In the meantime, here are some steps to try that often fix error codes like this:

1. Check Your Network Connection
- Make sure your Android device is on a reliable Wi-Fi connection or has a strong mobile data signal.

2. Clear App Cache and Data
- Go to Settings > Apps > HeimLink > Storage > Clear Cache and Clear Data (this won't delete your account, just app data).
- Then restart the app and try logging in again.

3. Update or Reinstall the App
- Sometimes, outdated or corrupt app versions cause errors. Visit Google Play Store to update the HeimLink app.
- If it's already updated, uninstall and reinstall it to ensure a fresh install.

4. Password Reset via Web or App
- If the in-app reset fails, check if you can reset your password through the official HeimLink website or app with the "Forgot Password" option.

5. Camera or Device Reset
- If the problem relates to device connection (e.g., camera), try physically resetting the device by pressing its reset button according to the manual. Then reconnect through the app.

If after all that you still see error "-1", it may be related to server authentication issues or app bugs reported by other users1 2.

Let me know what you’ve tried so far and what you see on your screen—I’ll help you further! Are you satisfied with this starting guidance?

Issue still remains

Thanks for letting me know the issue is still there. From what I’m seeing, error "-1" on the HeimLink Android app has been reported by several users recently, and it appears to be related to an app or server-side problem rather than your device alone1.

Here are some updated steps you can try given this context:

1. Check for an App Update or Known Outage
- Sometimes the app developers release a fix for such errors. Please check the Google Play Store for any pending updates to HeimLink and install if available.
- You might also want to check online communities like the HeimVision subreddit for announcements about server issues or app bugs1.

2. Switch Network to 2.4 GHz Wi-Fi
- The HeimVision cameras and app generally require a 2.4 GHz Wi-Fi band connection, not 5 GHz. Confirm your Android device is connected to 2.4 GHz, as using 5 GHz can cause connection issues2.

3. Reinstall App with Cache Clean
- Uninstall HeimLink, restart your phone, then reinstall the app fresh from the Play Store.
- Before reinstalling, go to Settings > Apps > HeimLink and clear both cache and data in case residual files are causing trouble.

4. Device Reset
- For the camera or connected device, a physical reset using the reset button can sometimes resolve lingering issues.

5. Alternative Login Approach
- Try logging in on another device or on a web portal if HeimLink offers one, to verify if it’s device-specific.

If none of these work, it may be a temporary server-side issue that only HeimLink's developers can resolve. In that case, you might want to contact HeimVision support directly at [email protected] with the error details and device info.

Would you like help checking for updates or guidance on any of the steps above? Are you satisfied with this approach so far?