diff --git a/src/js/actions/TrezorConnectActions.js b/src/js/actions/TrezorConnectActions.js
index 59998dbf..7b25dc9c 100644
--- a/src/js/actions/TrezorConnectActions.js
+++ b/src/js/actions/TrezorConnectActions.js
@@ -8,7 +8,7 @@ import * as TOKEN from './constants/token';
 import * as CONNECT from './constants/TrezorConnect';
 import * as NOTIFICATION from './constants/notification';
 import * as WALLET from './constants/wallet';
-import { getNewInstance } from '../reducers/DevicesReducer';
+import { getDuplicateInstanceNumber } from '../reducers/utils';
 
 import { push } from 'react-router-redux';
 import * as DiscoveryActions from './DiscoveryActions';
@@ -113,15 +113,16 @@ export const init = (): AsyncAction => async (dispatch: Dispatch, getState: GetS
     });
 
     // $FlowIssue LOCAL not declared
+    window.__TREZOR_CONNECT_SRC = typeof LOCAL === 'string' ? LOCAL : 'https://sisyfos.trezor.io/connect/';
     // window.__TREZOR_CONNECT_SRC = typeof LOCAL === 'string' ? LOCAL : 'https://connect.trezor.io/5/';
-    window.__TREZOR_CONNECT_SRC = 'https://sisyfos.trezor.io/connect/';
+    //window.__TREZOR_CONNECT_SRC = 'https://sisyfos.trezor.io/connect/';
     // window.__TREZOR_CONNECT_SRC = 'https://localhost:8088/';
 
     try {
         await TrezorConnect.init({
             transportReconnect: true,
             debug: true,
-            popup: false,
+            popup: true,
             webusb: true,
             pendingTransportEvent: (getState().devices.length < 1),
         });
@@ -407,7 +408,7 @@ export const duplicateDevice = (device: TrezorDevice): AsyncAction => async (dis
     //     device,
     // });
 
-    const instance: number = getNewInstance(getState().devices, device);
+    const instance: number = getDuplicateInstanceNumber(getState().devices, device);
     const extended: Object = { instance };
     dispatch({
         type: CONNECT.DUPLICATE,
diff --git a/src/js/components/modal/DuplicateDevice.js b/src/js/components/modal/DuplicateDevice.js
index c047b9fe..dfb2d00a 100644
--- a/src/js/components/modal/DuplicateDevice.js
+++ b/src/js/components/modal/DuplicateDevice.js
@@ -2,7 +2,7 @@
 
 
 import React, { Component } from 'react';
-import { getNewInstance } from '~/js/reducers/DevicesReducer';
+import { getDuplicateInstanceNumber } from '~/js/reducers/utils';
 import type { Props } from './index';
 
 type State = {
@@ -25,7 +25,7 @@ export default class DuplicateDevice extends Component<Props, State> {
         const device = props.modal.opened ? props.modal.device : null;
         if (!device) return;
 
-        const instance = getNewInstance(props.devices, device);
+        const instance = getDuplicateInstanceNumber(props.devices, device);
 
         this.state = {
             defaultName: `${device.label} (${instance.toString()})`,
diff --git a/src/js/reducers/DevicesReducer.js b/src/js/reducers/DevicesReducer.js
index b62e9c86..171143bb 100644
--- a/src/js/reducers/DevicesReducer.js
+++ b/src/js/reducers/DevicesReducer.js
@@ -5,6 +5,7 @@ import { TRANSPORT, DEVICE } from 'trezor-connect';
 import type { Device } from 'trezor-connect';
 import * as CONNECT from '../actions/constants/TrezorConnect';
 import * as WALLET from '../actions/constants/wallet';
+import { getDuplicateInstanceNumber } from './utils';
 
 import type { Action, TrezorDevice } from '~/flowtype';
 
@@ -123,7 +124,7 @@ const addDevice = (state: State, device: Device): State => {
         // edge case: freshly connected device has different "passphrase_protection" than saved instances
         // need to automatically create another instance with default instance name
         // if (hasDifferentPassphraseSettings && !hasInstancesWithPassphraseSettings) {
-        //     const instance = getNewInstance(affectedDevices, device);
+        //     const instance = getDuplicateInstanceNumber(affectedDevices, device);
 
         //     newDevice.instance = instance;
         //     newDevice.instanceLabel = `${device.label} (${instance})`;
@@ -152,7 +153,7 @@ const duplicate = (state: State, device: TrezorDevice): State => {
 
     const newState: State = [...state];
 
-    const instance: number = getNewInstance(state, device);
+    const instance: number = getDuplicateInstanceNumber(state, device);
 
     const newDevice: TrezorDevice = {
         ...device,
@@ -299,20 +300,4 @@ export default function devices(state: State = initialState, action: Action): St
         default:
             return state;
     }
-}
-
-// UTILS
-
-export const getNewInstance = (devices: State, device: Device | TrezorDevice): number => {
-    const affectedDevices: State = devices.filter(d => d.features && device.features && d.features.device_id === device.features.device_id)
-        .sort((a, b) => {
-            if (!a.instance) {
-                return -1;
-            }
-            return !b.instance || a.instance > b.instance ? 1 : -1;
-        });
-
-    const instance: number = affectedDevices.reduce((inst, dev) => (dev.instance ? dev.instance + 1 : inst + 1), 0);
-
-    return instance;
-};
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/js/reducers/utils/index.js b/src/js/reducers/utils/index.js
index 17068816..142bf178 100644
--- a/src/js/reducers/utils/index.js
+++ b/src/js/reducers/utils/index.js
@@ -15,6 +15,7 @@ import type {
     Action,
     AsyncAction,
     GetState,
+    Device,
     TrezorDevice,
     Account,
     Coin,
@@ -53,6 +54,23 @@ export const findDevice = (devices: Array<TrezorDevice>, deviceId: string, devic
     return false;
 });
 
+// get next instance number
+export const getDuplicateInstanceNumber = (devices: Array<TrezorDevice>, device: Device | TrezorDevice): number => {
+    // find device(s) with the same features.device_id
+    // and sort them by instance number
+    const affectedDevices: Array<TrezorDevice> = devices.filter(d => d.features && device.features && d.features.device_id === device.features.device_id)
+        .sort((a, b) => {
+            if (!a.instance) {
+                return -1;
+            }
+            return !b.instance || a.instance > b.instance ? 1 : -1;
+        });
+    
+    // calculate new instance number
+    const instance: number = affectedDevices.reduce((inst, dev) => (dev.instance ? dev.instance + 1 : inst + 1), 0);
+    return instance;
+};
+
 export const getSelectedAccount = (state: State): ?Account => {
     const device = state.wallet.selectedDevice;
     const locationState = state.router.location.state;