diff --git a/packages/uhk-agent/src/services/device.service.ts b/packages/uhk-agent/src/services/device.service.ts
index 3289f856..527ec84a 100644
--- a/packages/uhk-agent/src/services/device.service.ts
+++ b/packages/uhk-agent/src/services/device.service.ts
@@ -146,6 +146,7 @@ export class DeviceService {
         let firmwarePathData: TmpFirmware;
 
         try {
+            this.device.resetDeviceCache();
             this.stopPollTimer();
 
             if (args && args.length > 0) {
diff --git a/packages/uhk-usb/src/uhk-hid-device.ts b/packages/uhk-usb/src/uhk-hid-device.ts
index f10b2375..2f965199 100644
--- a/packages/uhk-usb/src/uhk-hid-device.ts
+++ b/packages/uhk-usb/src/uhk-hid-device.ts
@@ -1,4 +1,4 @@
-import { cloneDeep, isEqual } from 'lodash';
+import { isEqual } from 'lodash';
 import { Device, devices, HID } from 'node-hid';
 import { CommandLineArgs, DeviceConnectionState, LogService } from 'uhk-common';
 
@@ -153,6 +153,10 @@ export class UhkHidDevice {
         }
     }
 
+    public resetDeviceCache(): void {
+        this._prevDevices = {};
+    }
+
     async reenumerate(enumerationMode: EnumerationModes): Promise<void> {
         const reenumMode = EnumerationModes[enumerationMode].toString();
         this.logService.debug(`[UhkHidDevice] Start reenumeration, mode: ${reenumMode}`);