message: [FIX] Backhandler onboarding
diff: import React from 'react';
  import PropTypes from 'prop-types';
  import {
  - Text, Keyboard, StyleSheet, TouchableOpacity, View, Alert
  + Text, Keyboard, StyleSheet, TouchableOpacity, View, Alert, BackHandler
  } from 'react-native';
  import { connect } from 'react-redux';
  import * as FileSystem from 'expo-file-system';
  @@ -105,6 +105,7 @@ class NewServerView extends React.Component {
  certificate: null
  };
  EventEmitter.addEventListener('NewServer', this.handleNewServerEvent);
  + BackHandler.addEventListener('hardwareBackPress', this.handleBackPress);
  }
  componentDidMount() {
  @@ -116,6 +117,16 @@ class NewServerView extends React.Component {
  componentWillUnmount() {
  EventEmitter.removeListener('NewServer', this.handleNewServerEvent);
  + BackHandler.removeEventListener('hardwareBackPress', this.handleBackPress);
  + }
  +
  + handleBackPress = () => {
  + const { navigation } = this.props;
  + if (navigation.isFocused() && this.previousServer) {
  + this.close();
  + return true;
  + }
  + return false;
  }
  onChangeText = (text) => {
  