diff --git a/firmware/webdir/index.html b/firmware/webdir/index.html
index 389f51c..0b4bac1 100644
--- a/firmware/webdir/index.html
+++ b/firmware/webdir/index.html
@@ -341,7 +341,7 @@
         sbox = document.getElementById('status_box');
         sbox.className = "label " + cls;
         sbox.innerHTML = text;
-        console.info(text);
+        //console.info(text);
     }
 
     function startPolling() {
@@ -519,7 +519,7 @@
     var firmware_file;
 
     function load_firmware(evt) {
-        console.log("load_firmware", evt);
+        //console.log("load_firmware", evt);
 
         var file = evt.target.files[0];
         if (!file) {
@@ -533,7 +533,7 @@
         reader.readAsArrayBuffer(file)
     }
 
-    const chunk_size = 1024;
+    const chunk_size = 512;
 
     function transmit_firmware_chunk(buf, i) {
         return new Promise((resolve, reject) => {
@@ -559,7 +559,7 @@
             }, 2000);
             wsWrite(frame.buffer);
             //build packet: type, seq, len, hash, data
-            console.log(i, (end - begin), crc32(slice), (100*end/buf.byteLength)+"%");
+            console.log(i, (end - begin), crc32(slice), (100 * end / buf.byteLength) + "%");
         });
     }