diff --git a/src/main/io/displayport_msp.c b/src/main/io/displayport_msp.c
index 08f46491e4..4bf7190eb5 100644
--- a/src/main/io/displayport_msp.c
+++ b/src/main/io/displayport_msp.c
@@ -47,6 +47,14 @@
 static displayPort_t mspDisplayPort;
 static serialPortIdentifier_e displayPortSerial;
 
+typedef struct displayPortMspCommand_s {
+    uint8_t command;
+    uint8_t row;
+    uint8_t col;
+    uint8_t attribute;
+    uint8_t data[OSD_CHAR_BYTES];
+} __attribute__((packed)) displayPortMspCommand_t;
+
 static int output(displayPort_t *displayPort, uint8_t cmd, uint8_t *buf, int len)
 {
     UNUSED(displayPort);
@@ -168,6 +176,44 @@ static uint32_t txBytesFree(const displayPort_t *displayPort)
     return mspSerialTxBytesFree();
 }
 
+#ifdef USE_MSP_DISPLAYPORT_FONT
+static bool writeFontCharacter(displayPort_t *displayPort, uint16_t addr, const osdCharacter_t *chr)
+{
+    displayPortMspCommand_t displayPortCommand;
+
+    if (!chr) {
+        return false;
+    }
+
+    displayPortCommand.command = MSP_DP_FONTCHAR_WRITE;
+    displayPortCommand.row = addr & 0xff;
+    displayPortCommand.col = (addr >> 8) & 0xff;
+    displayPortCommand.attribute = 0;
+
+    memcpy(displayPortCommand.data, chr->data, OSD_CHAR_BYTES);
+
+    int res = output(displayPort, MSP_DISPLAYPORT, (uint8_t*)&displayPortCommand, OSD_CHAR_BYTES + 4);
+
+    // 80ms delay needed to ensure the MSP display has enough time to process the font data
+    delay(80);
+
+    return res > 0;
+}
+
+static bool checkReady(displayPort_t *displayPort, bool rescan)
+{
+    if (
+        !displayPort ||
+        displayPort->deviceType != DISPLAYPORT_DEVICE_TYPE_MSP ||
+        !rescan
+    ) {
+        return false;
+    }
+
+    return true;
+}
+#endif
+
 static const displayPortVTable_t mspDisplayPortVTable = {
     .grab = grab,
     .release = release,
@@ -182,6 +228,10 @@ static const displayPortVTable_t mspDisplayPortVTable = {
     .redraw = redraw,
     .isSynced = isSynced,
     .txBytesFree = txBytesFree,
+#ifdef USE_MSP_DISPLAYPORT_FONT
+    .writeFontCharacter = writeFontCharacter,
+    .checkReady = checkReady,
+#endif
     .layerSupported = NULL,
     .layerSelect = NULL,
     .layerCopy = NULL,
diff --git a/src/main/io/displayport_msp.h b/src/main/io/displayport_msp.h
index 25f624bb08..24456325f6 100644
--- a/src/main/io/displayport_msp.h
+++ b/src/main/io/displayport_msp.h
@@ -28,13 +28,16 @@
 
 // MSP Display Port commands
 typedef enum {
-    MSP_DP_HEARTBEAT = 0,         // Release the display after clearing and updating
+    MSP_DP_HEARTBEAT = 0,       // Release the display after clearing and updating
     MSP_DP_RELEASE = 1,         // Release the display after clearing and updating
     MSP_DP_CLEAR_SCREEN = 2,    // Clear the display
     MSP_DP_WRITE_STRING = 3,    // Write a string at given coordinates
     MSP_DP_DRAW_SCREEN = 4,     // Trigger a screen draw
     MSP_DP_OPTIONS = 5,         // Not used by Betaflight. Reserved by Ardupilot and INAV
     MSP_DP_SYS = 6,             // Display system element displayportSystemElement_e at given coordinates
+#ifdef USE_MSP_DISPLAYPORT_FONT
+    MSP_DP_FONTCHAR_WRITE = 7,  // New OSD chip works over MSP, enables font write over MSP
+#endif
     MSP_DP_COUNT,
 } displayportMspCommand_e;
 
diff --git a/src/main/msp/msp.c b/src/main/msp/msp.c
index 15cab1dec6..dc9229c64d 100644
--- a/src/main/msp/msp.c
+++ b/src/main/msp/msp.c
@@ -947,6 +947,7 @@ static bool mspCommonProcessOutCommand(int16_t cmdMSP, sbuf_t *dst, mspPostProce
 #define OSD_FLAGS_OSD_HARDWARE_MAX_7456 (1 << 4)
 #define OSD_FLAGS_OSD_DEVICE_DETECTED   (1 << 5)
 #define OSD_FLAGS_OSD_MSP_DEVICE        (1 << 6)
+#define OSD_FLAGS_OSD_HARDWARE_AIRBOT_THEIA_OSD (1 << 7)
 
         uint8_t osdFlags = 0;
 
@@ -971,7 +972,11 @@ static bool mspCommonProcessOutCommand(int16_t cmdMSP, sbuf_t *dst, mspPostProce
 
             break;
         case OSD_DISPLAYPORT_DEVICE_MSP:
-            osdFlags |= OSD_FLAGS_OSD_MSP_DEVICE;
+            osdFlags |= OSD_FLAGS_OSD_MSP_DEVICE
+#ifdef USE_MSP_DISPLAYPORT_FONT
+                        | OSD_FLAGS_OSD_HARDWARE_AIRBOT_THEIA_OSD
+#endif
+            ;
             if (displayIsReady) {
                 osdFlags |= OSD_FLAGS_OSD_DEVICE_DETECTED;
             }