diff --git a/editor/flash.ts b/editor/flash.ts
index ad93e8081..b1c37aaa6 100644
--- a/editor/flash.ts
+++ b/editor/flash.ts
@@ -313,13 +313,7 @@ class DAPWrapper implements pxt.packetio.PacketIOWrapper {
 
         await this.io.reconnectAsync()
 
-        // before calling into dapjs, push through a few commands to make sure the responses
-        // to commands from previous sessions (if any) are flushed. Count of 5 is arbitrary.
-        for (let i = 0; i < 5; i++) {
-            try {
-                await this.getDaplinkVersionAsync();
-            } catch (e) {}
-        }
+        await this.clearCommandsAsync()
 
         // halt before reading from dap
         // to avoid interference from data logger
@@ -356,6 +350,16 @@ class DAPWrapper implements pxt.packetio.PacketIOWrapper {
         this.startReadSerial(connectionId)
     }
 
+    private async clearCommandsAsync() {
+        // before calling into dapjs, push through a few commands to make sure the responses
+        // to commands from previous sessions (if any) are flushed. Count of 5 is arbitrary.
+        for (let i = 0; i < 5; i++) {
+            try {
+                await this.getDaplinkVersionAsync();
+            } catch (e) {}
+        }
+    }
+
     private async getDaplinkVersionAsync() {
         return await this.dapCmdNums(0x00, 0x04);
     }
@@ -403,6 +407,7 @@ class DAPWrapper implements pxt.packetio.PacketIOWrapper {
             await this.io.reconnectAsync();
         }
 
+        await this.clearCommandsAsync()
         await this.stopReadersAsync();
         await this.cortexM.init();
         await this.cortexM.reset(true);
diff --git a/package.json b/package.json
index d10a98235..554cac818 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,6 @@
     },
     "dependencies": {
         "pxt-common-packages": "12.0.3",
-        "pxt-core": "10.2.13"
+        "pxt-core": "10.2.15"
     }
 }