diff --git a/romsel_dsimenutheme/arm7/source/main.c b/romsel_dsimenutheme/arm7/source/main.c
index ffa68bbaab..1fc20ed7d5 100644
--- a/romsel_dsimenutheme/arm7/source/main.c
+++ b/romsel_dsimenutheme/arm7/source/main.c
@@ -175,6 +175,9 @@ int main() {
 		}
 	}
 
+	bool reportBacklightLevelChange = false;
+	u8 currentBacklightLevel;
+
 	// Keep the ARM7 mostly idle
 	while (!exitflag) {
 		if ( 0 == (REG_KEYINPUT & (KEY_SELECT | KEY_START | KEY_L | KEY_R))) {
@@ -217,6 +220,17 @@ int main() {
 			ReturntoDSiMenu();
 		}
 
+		if (fifoCheckValue32(FIFO_USER_04)) {
+			reportBacklightLevelChange = fifoGetValue32(FIFO_USER_04) == 1;
+			if (reportBacklightLevelChange) currentBacklightLevel = my_i2cReadRegister(I2C_PM, 0x41);
+		}
+		if (reportBacklightLevelChange) {
+			if (my_i2cReadRegister(I2C_PM, 0x41) != currentBacklightLevel) {
+				fifoSendValue32(FIFO_USER_04, 1);
+				reportBacklightLevelChange = false;
+			}
+		}
+
 		if (*(u32*)(0x2FFFD0C) == 0x54494D52) {
 			if (rebootTimer == 60*2) {
 				ReturntoDSiMenu();	// Reboot, if fat init code is stuck in a loop
diff --git a/romsel_dsimenutheme/arm9/source/fileBrowse.cpp b/romsel_dsimenutheme/arm9/source/fileBrowse.cpp
index ecae226a09..2ff12f1edc 100644
--- a/romsel_dsimenutheme/arm9/source/fileBrowse.cpp
+++ b/romsel_dsimenutheme/arm9/source/fileBrowse.cpp
@@ -4316,6 +4316,9 @@ std::string browseForFile(const std::vector<std::string_view> extensionList) {
 				bannerTextShown = false;
 				bool runSelectMenu = pressed & KEY_SELECT;
 				bool break2 = false;
+				if (pressed & KEY_SELECT && dsiFeatures() && ms().consoleModel < 2) {
+					fifoSendValue32(FIFO_USER_04, 1); // enable backlight level change reports
+				}
 				while (held & KEY_SELECT) {
 					scanKeys();
 					pressed = keysDown();
@@ -4351,7 +4354,14 @@ std::string browseForFile(const std::vector<std::string_view> extensionList) {
 							return "null";
 						}
 					}
+
+					// detect backlight level change on DSi consoles
+					if (runSelectMenu && dsiFeatures() && ms().consoleModel < 2 && fifoGetValue32(FIFO_USER_04)) {
+						runSelectMenu = false;
+						fifoSendValue32(FIFO_USER_04, 2); // disable backlight level change report
+					}
 				}
+				if (dsiFeatures() && ms().consoleModel < 2) fifoSendValue32(FIFO_USER_04, 2); // disable backlight level change report
 				if (break2) break;
 				if (runSelectMenu && (ms().theme == TWLSettings::EThemeDSi || ms().theme == TWLSettings::EThemeSaturn || ms().theme == TWLSettings::EThemeHBL)) {
 					if (ms().showSelectMenu) {