diff --git a/protob/messages.proto b/protob/messages.proto
index 28689636dc..327549d219 100644
--- a/protob/messages.proto
+++ b/protob/messages.proto
@@ -76,6 +76,10 @@ enum MessageType {
 	MessageType_DebugLinkState = 102 [(wire_debug_out) = true];
 	MessageType_DebugLinkStop = 103 [(wire_debug_in) = true];
 	MessageType_DebugLinkLog = 104 [(wire_debug_out) = true];
+	MessageType_DebugLinkMemoryRead = 110 [(wire_debug_in) = true];
+	MessageType_DebugLinkMemory = 111 [(wire_debug_out) = true];
+	MessageType_DebugLinkMemoryWrite = 112 [(wire_debug_in) = true];
+	MessageType_DebugLinkFlashErase = 113 [(wire_debug_in) = true];
 }
 
 ////////////////////
@@ -754,3 +758,38 @@ message DebugLinkLog {
 	optional string bucket = 2;
 	optional string text = 3;
 }
+
+/**
+ * Request: Read memory from device
+ * @next DebugLinkMemory
+ */
+message DebugLinkMemoryRead {
+	optional uint32 address = 1;
+	optional uint32 length = 2;
+}
+
+/**
+ * Response: Device sends memory back
+ * @prev DebugLinkMemoryRead
+ */
+message DebugLinkMemory {
+	optional bytes memory = 1;
+}
+
+/**
+ * Request: Write memory to device.  WARNING: Writing to the wrong
+ * location can irreparably break the device.
+ */
+message DebugLinkMemoryWrite {
+	optional uint32 address = 1;
+	optional bytes memory = 2;
+	optional bool flash = 3;
+}
+
+/**
+ * Request: Erase block of flash on device.  WARNING: Writing to the wrong
+ * location can irreparably break the device.
+ */
+message DebugLinkFlashErase {
+	optional uint32 sector = 1;
+}