There are multiple ways to follow a channel:
1.Search Channel: Tap Channels tab to either follow recommended accounts or search for an account using the search bar on top of the page. Tap 'Follow' on channel info page to follow the channel.
2.Scan QR code: Go to Contacts tab, open 3-dot menu and tap Scan QR Code. Scan a channel QR code to reach channel info page. Tap 'Follow' to start following.
3.Using shared Channel contact card: When a friend shares JioChat contact card with you, tap on contact card to reach channel info page. Tap 'Follow' to start following.