diff --git a/advanced/wallets/react-wallet-v2/src/lib/EIP155Lib.ts b/advanced/wallets/react-wallet-v2/src/lib/EIP155Lib.ts
index b4e7488df..09210a05b 100644
--- a/advanced/wallets/react-wallet-v2/src/lib/EIP155Lib.ts
+++ b/advanced/wallets/react-wallet-v2/src/lib/EIP155Lib.ts
@@ -5,6 +5,7 @@ import { providers, Wallet } from 'ethers'
  */
 interface IInitArgs {
   mnemonic?: string
+  privateKey?: string
 }
 export interface EIP155Wallet {
   getMnemonic(): string
@@ -26,14 +27,21 @@ export default class EIP155Lib implements EIP155Wallet {
     this.wallet = wallet
   }
 
-  static init({ mnemonic }: IInitArgs) {
-    const wallet = mnemonic ? Wallet.fromMnemonic(mnemonic) : Wallet.createRandom()
+  static init({ mnemonic, privateKey }: IInitArgs) {
+    let wallet
+    if (privateKey) {
+      wallet = new Wallet(privateKey)
+    } else if (mnemonic) {
+      wallet = Wallet.fromMnemonic(mnemonic)
+    } else {
+      wallet = Wallet.createRandom()
+    }
 
     return new EIP155Lib(wallet)
   }
 
   getMnemonic() {
-    return this.wallet.mnemonic.phrase
+    return this.wallet.mnemonic?.phrase || this.getPrivateKey()
   }
 
   getPrivateKey() {
diff --git a/advanced/wallets/react-wallet-v2/src/pages/settings.tsx b/advanced/wallets/react-wallet-v2/src/pages/settings.tsx
index cbe3efd8d..41416acd5 100644
--- a/advanced/wallets/react-wallet-v2/src/pages/settings.tsx
+++ b/advanced/wallets/react-wallet-v2/src/pages/settings.tsx
@@ -2,12 +2,12 @@ import PageHeader from '@/components/PageHeader'
 import RelayRegionPicker from '@/components/RelayRegionPicker'
 import SettingsStore from '@/store/SettingsStore'
 import { cosmosWallets } from '@/utils/CosmosWalletUtil'
-import { eip155Wallets } from '@/utils/EIP155WalletUtil'
+import { eip155Wallets, replaceEip155Mnemonic } from '@/utils/EIP155WalletUtil'
 import { solanaWallets } from '@/utils/SolanaWalletUtil'
 import { multiversxWallets } from '@/utils/MultiversxWalletUtil'
 import { tronWallets } from '@/utils/TronWalletUtil'
 import { kadenaWallets } from '@/utils/KadenaWalletUtil'
-import { Card, Col, Divider, Row, Switch, Text } from '@nextui-org/react'
+import { Button, Card, Col, Divider, Row, Switch, Text } from '@nextui-org/react'
 import { Fragment } from 'react'
 import { useSnapshot } from 'valtio'
 import packageJSON from '../../package.json'
@@ -32,6 +32,12 @@ export default function SettingsPage() {
     chainAbstractionEnabled
   } = useSnapshot(SettingsStore.state)
 
+  const onImportEip155Mnemonic = (value: string | null) => {
+    console.log('Importing EIP155 Mnemonic: ', value)
+    if (!value) throw new Error('No value provided')
+    replaceEip155Mnemonic(value.trim())
+  }
+
   return (
     <Fragment>
       <PageHeader title="Settings" />
@@ -191,8 +197,14 @@ export default function SettingsPage() {
         be used elsewhere!
       </Text>
 
-      <Text h4 css={{ marginTop: '$5', marginBottom: '$5' }}>
+      <Text h4 css={{ marginTop: '$5', marginBottom: '$5', display: 'flex' }}>
         EIP155 Mnemonic
+        <Button
+          style={{ marginLeft: 10 }}
+          onClick={() => onImportEip155Mnemonic(prompt('Enter mnemonic or private key'))}
+        >
+          Import
+        </Button>
       </Text>
       <Card bordered borderWeight="light" css={{ minHeight: '100px' }}>
         <Text css={{ fontFamily: '$mono' }}>{eip155Wallets[eip155Address].getMnemonic()}</Text>
diff --git a/advanced/wallets/react-wallet-v2/src/utils/EIP155WalletUtil.ts b/advanced/wallets/react-wallet-v2/src/utils/EIP155WalletUtil.ts
index 247c0ec84..de475da86 100644
--- a/advanced/wallets/react-wallet-v2/src/utils/EIP155WalletUtil.ts
+++ b/advanced/wallets/react-wallet-v2/src/utils/EIP155WalletUtil.ts
@@ -18,7 +18,11 @@ export function createOrRestoreEIP155Wallet() {
   const mnemonic2 = localStorage.getItem('EIP155_MNEMONIC_2')
 
   if (mnemonic1 && mnemonic2) {
-    wallet1 = EIP155Lib.init({ mnemonic: mnemonic1 })
+    if (mnemonic1.includes(' ')) {
+      wallet1 = EIP155Lib.init({ mnemonic: mnemonic1 })
+    } else {
+      wallet1 = EIP155Lib.init({ privateKey: mnemonic1 })
+    }
     wallet2 = EIP155Lib.init({ mnemonic: mnemonic2 })
   } else {
     wallet1 = EIP155Lib.init({})
@@ -44,6 +48,22 @@ export function createOrRestoreEIP155Wallet() {
   }
 }
 
+export async function replaceEip155Mnemonic(mnemonicOrPrivateKey: string) {
+  try {
+    let wallet
+    if (mnemonicOrPrivateKey.includes(' ')) {
+      wallet = EIP155Lib.init({ mnemonic: mnemonicOrPrivateKey })
+    } else {
+      wallet = EIP155Lib.init({ privateKey: mnemonicOrPrivateKey })
+    }
+    localStorage.setItem('EIP155_MNEMONIC_1', wallet.getMnemonic())
+    location.reload()
+  } catch (error) {
+    console.error('Failed to replace mnemonic: ', error)
+    throw new Error('Invalid mnemonic or private key')
+  }
+}
+
 /**
  * Get wallet for the address in params
  */