diff --git a/open-x4-sdk b/open-x4-sdk
index d8ccbacb..54ad0863 160000
--- a/open-x4-sdk
+++ b/open-x4-sdk
@@ -1 +1 @@
-Subproject commit d8ccbacb1e7f58f016e359943f65577336c4ce40
+Subproject commit 54ad086352f219d24d80f5f6792471ff8b42221f
diff --git a/src/activities/boot_sleep/SleepActivity.cpp b/src/activities/boot_sleep/SleepActivity.cpp
index 21fbc073..d22fbddc 100644
--- a/src/activities/boot_sleep/SleepActivity.cpp
+++ b/src/activities/boot_sleep/SleepActivity.cpp
@@ -4,7 +4,6 @@
 #include <Epub/converters/PngToFramebufferConverter.h>
 #include <FsHelpers.h>
 #include <GfxRenderer.h>
-#include <HalGPIO.h>
 #include <HalStorage.h>
 #include <I18n.h>
 #include <PNGdec.h>
@@ -358,19 +357,6 @@ void SleepActivity::onEnter() {
   if (SETTINGS.sleepScreen != CrossPointSettings::SLEEP_SCREEN_MODE::OVERLAY) {
     GUI.drawPopup(renderer, tr(STR_ENTERING_SLEEP));
   }
-  // X3 panels: flash white before rendering the sleep image so any ghosting from the reader
-  // page is fully cleared. The full sync triggered by requestResync drives the panel to a
-  // clean white state; the sleep screen is then drawn on top without residual ghost content.
-  // Skipped for OVERLAY (frame buffer must stay intact) and BLANK (already renders white).
-  const bool needsX3PreFlash = gpio.deviceIsX3() &&
-                               SETTINGS.sleepScreen != CrossPointSettings::SLEEP_SCREEN_MODE::OVERLAY &&
-                               SETTINGS.sleepScreen != CrossPointSettings::SLEEP_SCREEN_MODE::BLANK;
-  if (needsX3PreFlash) {
-    renderer.clearScreen();
-    display.requestResync(1);
-    renderer.displayBuffer(HalDisplay::HALF_REFRESH);
-  }
-
   switch (SETTINGS.sleepScreen) {
     case (CrossPointSettings::SLEEP_SCREEN_MODE::BLANK):
       return renderBlankSleepScreen();