diff --git a/core/embed/rust/src/ui/model_tt/mod.rs b/core/embed/rust/src/ui/model_tt/mod.rs
index a4f353e047..4e54439e7d 100644
--- a/core/embed/rust/src/ui/model_tt/mod.rs
+++ b/core/embed/rust/src/ui/model_tt/mod.rs
@@ -8,7 +8,11 @@ pub mod theme;
 
 #[cfg(feature = "micropython")]
 pub mod layout;
-mod screens;
+
+use crate::ui::{
+    layout::simplified::show,
+    model_tt::component::{ErrorScreen, WelcomeScreen},
+};
 
 pub struct ModelTTFeatures;
 
@@ -31,10 +35,12 @@ impl UIFeaturesCommon for ModelTTFeatures {
     const SCREEN: Rect = constant::SCREEN;
 
     fn screen_fatal_error(title: &str, msg: &str, footer: &str) {
-        screens::screen_fatal_error(title, msg, footer);
+        let mut frame = ErrorScreen::new(title.into(), msg.into(), footer.into());
+        show(&mut frame, false);
     }
 
     fn screen_boot_stage_2() {
-        screens::screen_boot_stage_2();
+        let mut frame = WelcomeScreen::new(false);
+        show(&mut frame, false);
     }
 }
diff --git a/core/embed/rust/src/ui/model_tt/screens.rs b/core/embed/rust/src/ui/model_tt/screens.rs
deleted file mode 100644
index 0446b773cc..0000000000
--- a/core/embed/rust/src/ui/model_tt/screens.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-use crate::ui::{
-    component::Component,
-    constant::screen,
-    display,
-    model_tt::{
-        component::{ErrorScreen, WelcomeScreen},
-        constant,
-    },
-};
-
-#[cfg(feature = "new_rendering")]
-use crate::ui::{display::Color, shape::render_on_display};
-
-pub fn screen_fatal_error(title: &str, msg: &str, footer: &str) {
-    let mut frame = ErrorScreen::new(title.into(), msg.into(), footer.into());
-    frame.place(constant::screen());
-
-    #[cfg(feature = "new_rendering")]
-    render_on_display(None, Some(Color::black()), |target| {
-        frame.render(target);
-    });
-
-    #[cfg(not(feature = "new_rendering"))]
-    frame.paint();
-    display::refresh();
-}
-
-pub fn screen_boot_stage_2() {
-    let mut frame = WelcomeScreen::new(false);
-    frame.place(screen());
-
-    #[cfg(feature = "new_rendering")]
-    {
-        display::sync();
-        render_on_display(None, Some(Color::black()), |target| {
-            frame.render(target);
-        });
-        display::refresh();
-    }
-
-    #[cfg(not(feature = "new_rendering"))]
-    {
-        display::sync();
-        frame.paint();
-        display::refresh();
-    }
-}