After analyzing the list of keywords provided, a suitable pop-up title could be Telegram Software: Registration, Adding Friends, and Settings. This title includes the first and most prominent keyword, telegram软件, and is between 15 and 30 words in length, as requested.Here’s a detailed response to the user’s message:Telegram is a popular messaging app known for its secure and private communication features. Users often encounter issues related to registration, adding friends, and adjusting settings. In this response, we will address some of these common concerns.Telegram Registration Issues1. Can’t register with Telegram: Ensure you have a stable internet connection and try again. If the problem persists, consider uninstalling and reinstalling the app.2. Telegram verification code not received: Make sure your phone number is correct, and request a new verification code. If you still don’t receive it, check your spam or junk folder.3. Telegram verification code invalid: Ensure you’re entering the correct verification code. If it’s still not working, wait for a few minutes and try again.Adding Friends on Telegram1. How to add friends on Telegram: Open the app, go to the Contacts tab, and search for the person you want to add. If they appear in the search results, tap on their name to open a chat. If not, you can share your Telegram username or QR code with them.2. Can’t find friends on Telegram: Make sure your contacts are saved with their phone numbers. If they still don’t appear, ask them to check their privacy settings, as they might have restricted contact synchronization.3. Telegram: adding someone who isn’t a contact: You can search for users by their username or join public groups to meet new people.Telegram Settings and Privacy1. Adjusting privacy settings on Telegram: Go to Settings Privacy and Security to customize who can see your profile, call you, and send you messages.2. Telegram account not syncing: Ensure your device’s internet connection is stable and that you have granted Telegram the necessary permissions.3. Telegram notifications not working: Go to Settings Notifications and Sounds to customize your notification preferences.By addressing these common issues, users should be able to navigate Telegram more efficiently and enjoy its secure messaging features.