How to Create a Private or Public Channel on Telegram? To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. Telegram has announced a number of measures aiming to tackle the spread of disinformation through its platform in Brazil. These features are part of an agreement between the platform and the country's authorities ahead of the elections in October. ‘Ban’ on Telegram The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar.
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