5Telegram Channel avatar size/dimensions To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. 6How to manage your Telegram channel? Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.” Ng, who had pleaded not guilty to all charges, had been detained for more than 20 months. His channel was said to have contained around 120 messages and photos that incited others to vandalise pro-government shops and commit criminal damage targeting police stations.
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