diff --git a/flight/pios/stm32f10x/pios_dsm.c b/flight/pios/stm32f10x/pios_dsm.c
index 5fa1fb7ff..577e22949 100644
--- a/flight/pios/stm32f10x/pios_dsm.c
+++ b/flight/pios/stm32f10x/pios_dsm.c
@@ -213,12 +213,24 @@ static int PIOS_DSM_UnrollChannels(struct pios_dsm_dev *dsm_dev)
         /* extract and save the channel value */
         uint8_t channel_num = (word >> resolution) & 0x0f;
         if (channel_num < PIOS_DSM_NUM_INPUTS) {
+
             if (channel_log & (1 << channel_num)) {
-                /* Found duplicate! */
-                /* Update resolution and restart processing the current frame. */
+                /* Found duplicate. This should happen when in 11 bit */
+                /* mode and the data is 10 bits */
+                if (resolution == 10)
+                    return -1;
                 resolution = 10;
                 return PIOS_DSM_UnrollChannels(dsm_dev);
             }
+
+            if ((channel_log & 0xFF) == 0x55) {
+                /* This pattern indicates 10 bit pattern */
+                if (resolution == 11)
+                    return -1;
+                resolution = 11;
+                return PIOS_DSM_UnrollChannels(dsm_dev);
+            }
+
             state->channel_data[channel_num] = (word & mask);
             /* keep track of this channel */
             channel_log |= (1 << channel_num);
diff --git a/flight/pios/stm32f4xx/pios_dsm.c b/flight/pios/stm32f4xx/pios_dsm.c
index 4154f9f23..314102c0e 100644
--- a/flight/pios/stm32f4xx/pios_dsm.c
+++ b/flight/pios/stm32f4xx/pios_dsm.c
@@ -215,12 +215,24 @@ static int PIOS_DSM_UnrollChannels(struct pios_dsm_dev *dsm_dev)
         /* extract and save the channel value */
         uint8_t channel_num = (word >> resolution) & 0x0f;
         if (channel_num < PIOS_DSM_NUM_INPUTS) {
+
             if (channel_log & (1 << channel_num)) {
-                /* Found duplicate! */
-                /* Update resolution and restart processing the current frame. */
+                /* Found duplicate. This should happen when in 11 bit */
+                /* mode and the data is 10 bits */
+                if (resolution == 10)
+                    return -1;
                 resolution = 10;
                 return PIOS_DSM_UnrollChannels(dsm_dev);
             }
+
+            if ((channel_log & 0xFF) == 0x55) {
+                /* This pattern indicates 10 bit pattern */
+                if (resolution == 11)
+                    return -1;
+                resolution = 11;
+                return PIOS_DSM_UnrollChannels(dsm_dev);
+            }
+
             state->channel_data[channel_num] = (word & mask);
             /* keep track of this channel */
             channel_log |= (1 << channel_num);