diff --git a/core/embed/firmware/main.c b/core/embed/firmware/main.c
index 147441c0b9..b69af45c47 100644
--- a/core/embed/firmware/main.c
+++ b/core/embed/firmware/main.c
@@ -50,6 +50,7 @@
 #if defined TREZOR_MODEL_R || defined TREZOR_MODEL_1
 #include "button.h"
 #endif
+#include "rust_ui.h"
 
 #ifdef SYSTEM_VIEW
 #include "systemview.h"
@@ -125,6 +126,8 @@ int main(void) {
   ensure(sectrue * (zkp_context_init() == 0), NULL);
 #endif
 
+  boot_firmware(0);
+
   printf("CORE: Preparing stack\n");
   // Stack limit should be less than real stack size, so we have a chance
   // to recover from limit hit.
diff --git a/core/embed/rust/rust_ui.h b/core/embed/rust/rust_ui.h
new file mode 100644
index 0000000000..d3807cd4fe
--- /dev/null
+++ b/core/embed/rust/rust_ui.h
@@ -0,0 +1,3 @@
+#include "common.h"
+
+void boot_firmware(uint16_t stage);
diff --git a/core/embed/rust/src/boot/mod.rs b/core/embed/rust/src/boot/mod.rs
new file mode 100644
index 0000000000..1750f4de09
--- /dev/null
+++ b/core/embed/rust/src/boot/mod.rs
@@ -0,0 +1,14 @@
+
+
+use crate::ui::display::icon;
+use crate::ui::model_tt::theme::{ICON_TREZOR_EMPTY, BLUE, BLACK, WHITE};
+use crate::ui::constant;
+
+
+#[no_mangle]
+pub extern "C" fn boot_firmware(
+    stage: cty::uint16_t
+) {
+
+    icon(constant::screen().center(), ICON_TREZOR_EMPTY, WHITE, BLACK);
+}
diff --git a/core/embed/rust/src/lib.rs b/core/embed/rust/src/lib.rs
index 2f63df12b4..bbd87b6a71 100644
--- a/core/embed/rust/src/lib.rs
+++ b/core/embed/rust/src/lib.rs
@@ -20,6 +20,7 @@ mod trace;
 #[cfg(feature = "ui")]
 #[macro_use]
 pub mod ui;
+pub mod boot;
 
 #[cfg(feature = "debug")]
 #[panic_handler]
diff --git a/core/embed/rust/src/ui/model_tt/res/trezor_empty.toif b/core/embed/rust/src/ui/model_tt/res/trezor_empty.toif
new file mode 100644
index 0000000000..8ac9aae443
Binary files /dev/null and b/core/embed/rust/src/ui/model_tt/res/trezor_empty.toif differ
diff --git a/core/embed/rust/src/ui/model_tt/theme.rs b/core/embed/rust/src/ui/model_tt/theme.rs
index 957992e815..c3c7816bed 100644
--- a/core/embed/rust/src/ui/model_tt/theme.rs
+++ b/core/embed/rust/src/ui/model_tt/theme.rs
@@ -55,6 +55,7 @@ pub const ICON_SPACE: &[u8] = include_res!("model_tt/res/space.toif");
 pub const ICON_BACK: &[u8] = include_res!("model_tt/res/back.toif");
 pub const ICON_CLICK: &[u8] = include_res!("model_tt/res/click.toif");
 pub const ICON_NEXT: &[u8] = include_res!("model_tt/res/next.toif");
+pub const ICON_TREZOR_EMPTY: &[u8] = include_res!("model_tt/res/trezor_empty.toif");
 
 // Large, color icons.
 pub const IMAGE_WARN: &[u8] = include_res!("model_tt/res/warn.toif");
diff --git a/python/src/trezorlib/toif.py b/python/src/trezorlib/toif.py
index d1e50fd310..b576993432 100644
--- a/python/src/trezorlib/toif.py
+++ b/python/src/trezorlib/toif.py
@@ -72,6 +72,14 @@ def _from_pil_grayscale(pixels: Sequence[int]) -> bytes:
         data += struct.pack(">B", c)
     return bytes(data)
 
+def _from_pil_grayscale_alpha(pixels: Sequence[int]) -> bytes:
+    data = bytearray()
+    for i in range(0, len(pixels), 2):
+        left, right = pixels[i], pixels[i + 1]
+        c = (left[1] & 0xF0) | ((right[1] & 0xF0) >> 4)
+        data += struct.pack(">B", c)
+    return bytes(data)
+
 
 def _to_grayscale(data: bytes) -> bytes:
     res = bytearray()
@@ -161,6 +169,11 @@ def from_image(
         if image.size[0] % 2 != 0:
             raise ValueError("Only even-width grayscale images are supported")
         toif_data = _from_pil_grayscale(image.getdata())
+    elif image.mode == "LA":
+        toif_mode = firmware.ToifMode.grayscale
+        if image.size[0] % 2 != 0:
+            raise ValueError("Only even-width grayscale images are supported")
+        toif_data = _from_pil_grayscale_alpha(image.getdata())
     elif image.mode == "RGB":
         toif_mode = firmware.ToifMode.full_color
         toif_data = _from_pil_rgb(image.getdata())