diff --git a/bootloader/ui-mockup/boot_info.py b/bootloader/ui-mockup/boot_info.py
index 4d5a9e61..b15600b4 100755
--- a/bootloader/ui-mockup/boot_info.py
+++ b/bootloader/ui-mockup/boot_info.py
@@ -30,4 +30,4 @@ reboot = button.Button((0, 240 - 48, 240, 48), 'Reboot', normal_style=DEFAULT_BU
 reboot.render()
 
 while True:
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()
diff --git a/bootloader/ui-mockup/boot_init.py b/bootloader/ui-mockup/boot_init.py
index 0021e187..2eca777e 100755
--- a/bootloader/ui-mockup/boot_init.py
+++ b/bootloader/ui-mockup/boot_init.py
@@ -14,4 +14,4 @@ ui.display.text_center(120, 192, "SatoshiLabs", ui.BOLD, ui.WHITE, ui.BLACK)
 ui.display.text_center(120, 215, "v0.1.1", 1, ui.GREY, ui.BLACK)
 
 while True:
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
\ No newline at end of file
+    ui.display.refresh()
\ No newline at end of file
diff --git a/bootloader/ui-mockup/boot_nofw.py b/bootloader/ui-mockup/boot_nofw.py
index 20983e22..84b5ba1f 100755
--- a/bootloader/ui-mockup/boot_nofw.py
+++ b/bootloader/ui-mockup/boot_nofw.py
@@ -16,4 +16,4 @@ ui.display.text_center(120, 192 + 32, "Visit TREZOR.io/start", 1, ui.WHITE, ui.B
 
 
 while True:
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
\ No newline at end of file
+    ui.display.refresh()
\ No newline at end of file
diff --git a/bootloader/ui-mockup/install_fail.py b/bootloader/ui-mockup/install_fail.py
index cdd3509a..0070712d 100755
--- a/bootloader/ui-mockup/install_fail.py
+++ b/bootloader/ui-mockup/install_fail.py
@@ -37,4 +37,4 @@ reboot = button.Button((0, 240 - 48, 240, 48), 'Reboot', normal_style=DEFAULT_BU
 reboot.render()
 
 while True:
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()
diff --git a/bootloader/ui-mockup/install_fw.py b/bootloader/ui-mockup/install_fw.py
index 04392489..67b1e8c8 100755
--- a/bootloader/ui-mockup/install_fw.py
+++ b/bootloader/ui-mockup/install_fw.py
@@ -63,9 +63,9 @@ cancel.render()
 
 while True:
     logo()
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()
     utime.sleep(2)
 
     fingerprint()
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()
     utime.sleep(2)
diff --git a/bootloader/ui-mockup/install_fw_really.py b/bootloader/ui-mockup/install_fw_really.py
index c3a85d9e..596609e1 100755
--- a/bootloader/ui-mockup/install_fw_really.py
+++ b/bootloader/ui-mockup/install_fw_really.py
@@ -37,4 +37,4 @@ confirm = button.Button((0, 240 - 48, 240, 48), 'Hold to confirm', normal_style=
 confirm.render()
 
 while True:
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()
diff --git a/bootloader/ui-mockup/install_ok.py b/bootloader/ui-mockup/install_ok.py
index 4174bbfc..e96eb242 100755
--- a/bootloader/ui-mockup/install_ok.py
+++ b/bootloader/ui-mockup/install_ok.py
@@ -34,4 +34,4 @@ reboot = button.Button((0, 240 - 48, 240, 48), 'Reboot', normal_style=DEFAULT_BU
 reboot.render()
 
 while True:
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()
diff --git a/bootloader/ui-mockup/install_progress.py b/bootloader/ui-mockup/install_progress.py
index b9e2e61a..c6bd85fd 100755
--- a/bootloader/ui-mockup/install_progress.py
+++ b/bootloader/ui-mockup/install_progress.py
@@ -19,6 +19,6 @@ while True:
     ui.display.loader(p, ui.BLUE, ui.BLACK)
     ui.display.text_center(120, 240 // 2 + 14 // 2, "%d%%" % (p // 10), 2, ui.WHITE, ui.BLACK)
 
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()
 
     p = (p + 1) % 1000
diff --git a/bootloader/ui-mockup/install_u_fw.py b/bootloader/ui-mockup/install_u_fw.py
index c6ca484a..038dd0aa 100755
--- a/bootloader/ui-mockup/install_u_fw.py
+++ b/bootloader/ui-mockup/install_u_fw.py
@@ -58,4 +58,4 @@ cancel = button.Button((0, 240 - 48, 119, 48), 'Cancel', normal_style=CANCEL_BUT
 cancel.render()
 
 while True:
-    if hasattr(ui.display, 'refresh'): ui.display.refresh()
+    ui.display.refresh()