Quick Diagnosis
Solution 1: Disable Battery Optimization
General Android:
- Long-press app → App Info → Battery
- Select Unrestricted or Don't optimize
- Disable Manage app if unused
Honor / Huawei (extra steps needed):
- Settings → Apps → Find app → App launch
- Turn OFF Manage automatically
- Enable: Auto-launch, Secondary launch, Run in background
- Battery → App launch → Set to Manual
- Disable Power-intensive prompt
Samsung:
- Settings → Apps → App → Battery → Unrestricted
- Settings → Battery → Background usage limits → Add to Never sleeping apps
Solution 2: Check Permissions
- Location: Set to Allow all the time
- Nearby devices / Bluetooth: Allow
- Physical activity: Allow
Solution 3: Lock App in Memory
- Open recent apps
- Find app card → tap icon at top
- Select Lock — 🔒 icon should appear
Solution 4: Reconnect Band
- Tap band icon (top right) → three dots → Unpair band
- Completely close app
- Restart app → Settings → Connections → Pair again
Solution 5: Manual Sync
- Keep phone close to band
- Tap band icon → Sync Now
- Wait 1-2 minutes
💡 Tip: Latest app update can retroactively sync data if you move out of range.
Important Notes
- ⚠️ Two apps cannot connect simultaneously — close one before using the other
- Keep phone within ~10m during workouts
- Wait for heart rate to appear before starting
- Green light = activity is recording
- Daily steps are automatic; workouts need manual start with '+'