diff --git a/android/src/app.rs b/android/src/app.rs
index e4a9721..91cf325 100644
--- a/android/src/app.rs
+++ b/android/src/app.rs
@@ -2808,6 +2808,21 @@ impl eframe::App for SleekApp {
                                 match ui::discover_tab(ui, &th, &mut self.state) {
                                     DiscoverAction::None => {}
                                     DiscoverAction::Join(ch) => self.do_join(ch),
+                                    DiscoverAction::Open(name) => {
+                                        let need_history = self
+                                            .state
+                                            .channels
+                                            .get(&name)
+                                            .map(|b| !b.has_chat_messages())
+                                            .unwrap_or(true);
+                                        self.state.open_chat(&name);
+                                        if need_history {
+                                            self.net.send(NetCmd::HistoryLatest {
+                                                target: name,
+                                                count: 100,
+                                            });
+                                        }
+                                    }
                                 }
                             }
                             Tab::Settings => {
diff --git a/android/src/ui/discover.rs b/android/src/ui/discover.rs
index 11416f2..0fc581f 100644
--- a/android/src/ui/discover.rs
+++ b/android/src/ui/discover.rs
@@ -9,6 +9,8 @@ use crate::ui::widgets::{avatar_circle, card};
 pub enum DiscoverAction {
     None,
     Join(String),
+    /// Already a member — open the channel buffer.
+    Open(String),
 }
 
 pub fn discover_tab(ui: &mut egui::Ui, th: &Theme, state: &mut AppState) -> DiscoverAction {
@@ -92,10 +94,14 @@ pub fn discover_tab(ui: &mut egui::Ui, th: &Theme, state: &mut AppState) -> Disc
             .interact(egui::Sense::click())
             .on_hover_cursor(CursorIcon::PointingHand);
 
-        if resp.clicked() && !joined {
-            action = DiscoverAction::Join((*name).to_string());
+        if resp.clicked() {
+            action = if joined {
+                DiscoverAction::Open((*name).to_string())
+            } else {
+                DiscoverAction::Join((*name).to_string())
+            };
         }
-        if resp.hovered() && !joined {
+        if resp.hovered() {
             ui.painter().rect_filled(
                 resp.rect,
                 sp.radius_md,