To delete a channel with over 1,000 subscribers, you need to contact user support Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.” To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. Add the logo from your device. Adjust the visible area of your image. Congratulations! Now your Telegram channel has a face Click “Save”.! 5Telegram Channel avatar size/dimensions
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