diff --git a/index.html b/index.html
index 0e5bb8e..df190fb 100644
--- a/index.html
+++ b/index.html
@@ -304,7 +304,7 @@
   <footer class="fixed-bottom bg-body-tertiary border-top">
     <div class="container">
       <div class="d-flex flex-column flex-sm-row justify-content-between py-3" id="footbody">
-        <p class="mb-0"><a target="_blank" href="https://github.com/dualshock-tools/dualshock-tools.github.io/commits/main/"><span class="ds-i18n">Version</span> 2.16 beta 9</a> (2025-09-11) - <a href="#" class="ds-i18n" onclick="show_donate_modal();">Support this project</a>&nbsp;<span id="authorMsg"></span></p>
+        <p class="mb-0"><a target="_blank" href="https://github.com/dualshock-tools/dualshock-tools.github.io/commits/main/"><span class="ds-i18n">Version</span> 2.16 beta 10</a> (2025-09-17) - <a href="#" class="ds-i18n" onclick="show_donate_modal();">Support this project</a>&nbsp;<span id="authorMsg"></span></p>
 
         <ul class="list-unstyled d-flex mb-0">
           <li class="ms-3"><a class="link-body-emphasis" href="mailto:ds4@the.al" target="_blank"><svg class="bi" width="24" height="24"><use xlink:href="#mail"/></svg></a></li>
diff --git a/js/controller-manager.js b/js/controller-manager.js
index 725cd7f..0573825 100644
--- a/js/controller-manager.js
+++ b/js/controller-manager.js
@@ -158,9 +158,8 @@ class ControllerManager {
   * Flash/save changes to the controller
   */
   async flash(progressCallback = null) {
-    const result = await this.currentController.flash(progressCallback);
     this.setHasChangesToWrite(false);
-    return result;
+    return this.currentController.flash(progressCallback);
   }
 
   /**
@@ -197,7 +196,7 @@ class ControllerManager {
   async calibrateSticksBegin() {
     const res = await this.currentController.calibrateSticksBegin();
     if (!res.ok) {
-      throw new Error(this.l("Stick calibration failed"), { cause: res.error });
+      throw new Error(`${this.l("Stick calibration failed")}. ${res.error?.message}`, { cause: res.error });
     }
   }
 
@@ -229,9 +228,9 @@ class ControllerManager {
   * Begin stick range calibration (for UI-driven calibration)
   */
   async calibrateRangeBegin() {
-    const ret = await this.currentController.calibrateRangeBegin();
-    if (!ret.ok) {
-      throw new Error(this.l("Range calibration failed"), { cause: ret.error } );
+    const res = await this.currentController.calibrateRangeBegin();
+    if (!res.ok) {
+      throw new Error(`${this.l("Stick calibration failed")}. ${res.error?.message}`, { cause: res.error });
     }
   }
 
diff --git a/js/controllers/ds4-controller.js b/js/controllers/ds4-controller.js
index 582699a..6e6f7e7 100644
--- a/js/controllers/ds4-controller.js
+++ b/js/controllers/ds4-controller.js
@@ -10,6 +10,8 @@ import {
   la 
 } from '../utils.js';
 
+const NOT_GENUINE_SONY_CONTROLLER_MSG = "Your device might not be a genuine Sony controller. If it is not a clone then please report this issue.";
+
 // DS4 Button mapping configuration
 const DS4_BUTTON_MAP = [
   { name: 'up', byte: 4, mask: 0x0 }, // Dpad handled separately
@@ -175,10 +177,14 @@ class DS4Controller extends BaseController {
       // Assert
       const data = await this.receiveFeatureReport(0x91);
       const data2 = await this.receiveFeatureReport(0x92);
-      const [d1, d2] = [data, data2].map(v => v.getUint32(0, false));
+      const [d1, d2] = [data, data2].map(v => v.buffer.byteLength == 4 ? v.getUint32(0, false) : undefined);
       if(d1 != 0x91010201 || d2 != 0x920102ff) {
         la("ds4_calibrate_range_begin_failed", {"d1": d1, "d2": d2});
-        return { ok: false, code: 1, d1, d2 };
+        return {
+          ok: false,
+          error: new Error(this.l(NOT_GENUINE_SONY_CONTROLLER_MSG)),
+          code: 1, d1, d2
+        };
       }
       return { ok: true };
     } catch(error) {
@@ -219,10 +225,14 @@ class DS4Controller extends BaseController {
       // Assert
       const data = await this.receiveFeatureReport(0x91);
       const data2 = await this.receiveFeatureReport(0x92);
-      const [d1, d2] = [data, data2].map(v => v.getUint32(0, false));
+      const [d1, d2] = [data, data2].map(v => v.buffer.byteLength == 4 ? v.getUint32(0, false) : undefined);
       if(d1 != 0x91010101 || d2 != 0x920101ff) {
         la("ds4_calibrate_sticks_begin_failed", {"d1": d1, "d2": d2});
-        return { ok: false, code: 1, d1, d2 };
+        return {
+          ok: false,
+          error: new Error(this.l(NOT_GENUINE_SONY_CONTROLLER_MSG)),
+          code: 1, d1, d2,
+        };
       }
 
       return { ok: true };
diff --git a/js/core.js b/js/core.js
index e3ddccc..b9b7cfd 100644
--- a/js/core.js
+++ b/js/core.js
@@ -298,6 +298,8 @@ async function disconnect() {
   }
   app.gj = 0;
   app.disable_btn = 0;
+  update_disable_btn();
+
   await controller.disconnect();
   controller = null; // Tear everything down
   close_all_modals();
@@ -724,9 +726,14 @@ function handleNvStatusUpdate(nv) {
 }
 
 async function flash_all_changes() {
-  // For DS5 Edge controllers, pass the progress callback
-  const progressCallback = controller.getModel() == "DS5_Edge" ? set_edge_progress : null;
+  const isEdge = controller.getModel() == "DS5_Edge";
+  const progressCallback = isEdge ? set_edge_progress : null;
+  const edgeProgressModal = isEdge ? bootstrap.Modal.getOrCreateInstance('#edgeProgressModal') : null;
+  edgeProgressModal?.show();
+
   const result = await controller.flash(progressCallback);
+  edgeProgressModal?.hide();
+
   if (result?.success) {
     if(result.isHtml) {
       show_popup(result.message, result.isHtml);