Hello! It sounds like the Truecaller app is not identifying callers even after you've signed in. Let's go through some steps to troubleshoot this issue.

1. Check Permissions: Make sure that Truecaller has all the necessary permissions. Go to your phone's Settings > Apps > Truecaller and ensure permissions for "Contacts" and "Phone" are granted. Also, check the "Draw over other apps" permission, as this can affect the caller ID function1.

2. Verify Caller ID Settings: Open the Truecaller app, tap the profile icon at the top left, and navigate to Settings > Calls. In the "Troubleshoot Caller ID" section, tap "Enable" and follow any prompts to activate this feature9.

3. Update the App: Ensure that your Truecaller app is updated to the latest version. An outdated app might not function correctly3.

4. Check Internet Connection: Truecaller requires an active internet connection to identify callers, so make sure your device is connected to the internet3.

5. Notification Settings: Ensure notifications are enabled for Truecaller. Go to your phone's Settings, search for Application Manager, find Truecaller, and check that notifications are turned on10.

Give these steps a try and let me know if Truecaller starts identifying your callers. If it still doesn't work, we can explore further options. Are you satisfied with the solution I provided?