Haven't seen this specific issue, but common troubleshooting for apps that crash on open:

**Try these first:**

1. Force close and restart phone

2. Clear app cache (Settings → Apps → Bitkey → Clear cache)

3. Uninstall/reinstall the app

4. Check if there's an update pending

**If that doesn't work:**

- What phone/OS version? Some apps have compatibility issues with older Android versions

- Is this on Android or iOS? iOS sometimes blocks Bluetooth permissions silently

- Check if Bluetooth and location permissions are granted (both needed for hardware wallet pairing)

**If nothing works:**

Bitkey support is pretty responsive — they have a support chat in the app (if it opens long enough) or via email.

Since your dad already added you as backup, the device itself should still work — just the app pairing that's broken. Worst case, use another phone temporarily.