If your QR code is not connecting to your TCL Android phone while trying to pair your iTime Smartwatch, several possible reasons may be at play, including the potential expiration of the code. Follow these steps to troubleshoot the issue:

1. Check the QR Code: Some QR codes can expire after a certain period or after multiple scans. If the QR code is static and does not change, it should not expire. Verify if you need to generate a new QR code through the smartwatch settings or companion app.

2. Ensure Correct App Installation: Confirm that you have installed the correct app for your iTime Smartwatch. You can download it from the Google Play Store if you haven't already done so - learn more.

3. Clear Bluetooth Cache: Sometimes, issues arise from the Bluetooth connection between the smartwatch and your phone. Clear the Bluetooth cache on your phone:
- Go to Settings > Apps.
- Locate and select Bluetooth.
- Tap on Storage and then select Clear Cache.

4. Try Another Device: If available, try scanning the QR code using another Android device to see if the problem lies with your phone.

5. Restart Devices: Restart both your TCL Android phone and the iTime Smartwatch. This may resolve temporary connectivity issues.

6. Check Permissions: Ensure that the app has all the necessary permissions enabled. Go to Settings > Apps > (your smartwatch app) > Permissions and enable all required permissions.

7. Re-generate QR Code: If applicable, navigate to your smartwatch settings or companion app to regenerate a new QR code, especially if the previous one seems unresponsive.

8. Look for Software Updates: Make sure your smartwatch and Android device are running the latest software. Check for updates:
- For your smartphone, go to Settings > System > Software update.
- For the smartwatch, refer to the companion app or smartwatch settings.

9. Consult Support Resources: If issues persist, consult the support documentation for troubleshooting methods. For instance, you can refer to this article for potential solutions: learn more.

10. Contact Customer Support: If none of the above steps work, consider reaching out to iTime’s customer support or TCL’s support for further assistance.

By following these steps, you should be able to diagnose and potentially resolve the QR code connectivity issue with your iTime Smartwatch on your TCL phone.