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Watch Connection Troubleshooting Guide

Quick Fix Checklist

1. Verify Device Pairing

  • Open Galaxy Wearable app on phone
  • Ensure watch shows as "Connected"
  • Check Bluetooth is enabled on both devices

2. Check App Installation

# Verify watch app is installed
adb -s SM_R930 shell pm list packages | findstr flowfit

# Verify phone app is installed  
adb -s 22101320G shell pm list packages | findstr flowfit

3. Test Connection

# Run watch app with logging
flutter run -d SM_R930 --release

# In another terminal, watch logs
adb -s SM_R930 logcat | findstr "WatchToPhoneSync\|HealthTracking"

Common Issues

Issue: "No connected nodes"

Cause: Phone and watch not paired or apps not running

Fix:

  1. Open Galaxy Wearable app on phone
  2. Ensure watch is connected
  3. Start phone app first, then watch app
  4. Check logs: adb -s SM_R930 logcat | findstr "WatchToPhoneSync"

Issue: "SDK unavailable"

Cause: Samsung Health SDK not initialized

Fix:

  1. Ensure Samsung Health is installed on watch
  2. Grant all permissions when prompted
  3. Restart watch app
  4. Check logs: adb -s SM_R930 logcat | findstr "HealthTracking"

Issue: "Send failed"

Cause: Message delivery failed

Fix:

  1. Ensure phone app is running in foreground
  2. Check phone logs: adb -s 22101320G logcat | findstr "PhoneDataListener"
  3. Verify both devices on same Google account
  4. Try restarting both apps

Testing Steps

1. Deploy Watch App

cd scripts
test-watch.bat

2. Deploy Phone App

cd scripts
test-phone.bat

3. Test Heart Rate Flow

  1. Open watch app → tap "Heart Rate"
  2. Tap "START" → wait for heart rate reading
  3. Tap "SEND" → check phone app receives data
  4. Watch logs for connection status

Log Analysis

Watch Logs (Good Connection)

WatchToPhoneSync: === Checking phone connection ===
WatchToPhoneSync: ✓ Connected node: Xiaomi 11T Pro (abc123)
WatchToPhoneSync: === Sending heart rate data ===
WatchToPhoneSync: ✓ Message sent successfully

Watch Logs (No Connection)

WatchToPhoneSync: === Checking phone connection ===
WatchToPhoneSync: ✗ No connected nodes found
WatchToPhoneSync: No connected nodes - ensure phone is paired

Phone Logs (Receiving Data)

PhoneDataListener: Message received from watch
PhoneDataListener: Heart rate: 72 BPM

UI Improvements

New Clean Design

  • Dashboard: Compact shortcuts for Heart Rate, Workout, and Relax
  • Heart Rate Screen:
    • Large BPM display (56pt font)
    • Simple START/STOP button
    • SEND button (appears after reading)
    • Minimal status indicator

Removed Clutter

  • No legacy six-item scrolling menu
  • Workout and Relax are direct tools instead of placeholder menu items
  • No complex status messages
  • Focus on core watch functionality

Performance Tips

  1. Keep phone app running: Android may kill background apps
  2. Use release mode: Debug mode is slower on watch
  3. Check battery: Low battery affects Bluetooth
  4. Stay nearby: Keep devices within 10 meters

Next Steps

If still having issues:

  1. Check adb devices shows both devices
  2. Verify permissions in Settings → Apps → FlowFit
  3. Restart both devices
  4. Re-pair watch in Galaxy Wearable app