diff --git a/packages/extension-koni-ui/src/Popup/Confirmations/parts/Sign/Substrate.tsx b/packages/extension-koni-ui/src/Popup/Confirmations/parts/Sign/Substrate.tsx
index 29d6100c9f..f4925f500d 100644
--- a/packages/extension-koni-ui/src/Popup/Confirmations/parts/Sign/Substrate.tsx
+++ b/packages/extension-koni-ui/src/Popup/Confirmations/parts/Sign/Substrate.tsx
@@ -247,6 +247,7 @@ const Component: React.FC<Props> = (props: Props) => {
   }, [addExtraData, chain, isMessage, isMetadataOutdated, isMissingData, isRuntimeUpdated, loadingChain, networkName, signMode, t]);
 
   const activeLedger = useMemo(() => isLedger && !loadingChain && alertData?.type !== 'error', [isLedger, loadingChain, alertData?.type]);
+  const forceUseMigrationApp = useMemo(() => isRuntimeUpdated || (isMessage && chainSlug !== 'avail_mainnet'), [isRuntimeUpdated, isMessage, chainSlug]);
 
   const { error: ledgerError,
     isLoading: isLedgerLoading,
@@ -255,7 +256,7 @@ const Component: React.FC<Props> = (props: Props) => {
     refresh: refreshLedger,
     signMessage: ledgerSignMessage,
     signTransaction: ledgerSignTransaction,
-    warning: ledgerWarning } = useLedger(chainSlug, activeLedger, true, isRuntimeUpdated || isMessage, account.originGenesisHash);
+    warning: ledgerWarning } = useLedger(chainSlug, activeLedger, true, forceUseMigrationApp, account.originGenesisHash);
 
   const isLedgerConnected = useMemo(() => !isLocked && !isLedgerLoading && !!ledger, [isLedgerLoading, isLocked, ledger]);
 
diff --git a/packages/extension-koni-ui/src/constants/ledger.ts b/packages/extension-koni-ui/src/constants/ledger.ts
index 78f8fde3df..5a9049b6e8 100644
--- a/packages/extension-koni-ui/src/constants/ledger.ts
+++ b/packages/extension-koni-ui/src/constants/ledger.ts
@@ -105,6 +105,19 @@ export const PredefinedLedgerNetwork: LedgerNetwork[] = [
     slip44: 434,
     isHide: true
   },
+  {
+    accountName: 'Avail',
+    appName: 'Avail',
+    networkName: 'Avail network',
+    genesisHash: ChainInfoMap.avail_mainnet.substrateInfo?.genesisHash || '0xb91746b45e0346cc2f815a520b9c6cb4d5c0902af848db0a80f85932d2e8276a',
+    icon: 'substrate',
+    network: 'avail',
+    slug: ChainInfoMap.avail_mainnet.slug,
+    isDevMode: false,
+    isGeneric: false,
+    isEthereum: false,
+    slip44: 709
+  },
   {
     accountName: 'Acala',
     appName: 'Acala',
@@ -501,7 +514,7 @@ export const BLOCK_DEFAULT_LEDGER_NETWORKS: string[] = ['*'];
 export const BLOCK_TRANSFER_NATIVE_LEDGER_NETWORKS: string[] = [];
 export const BLOCK_TRANSFER_TOKEN_LEDGER_NETWORKS: string[] = [];
 export const BLOCK_TRANSFER_XCM_LEDGER_NETWORKS: string[] = ['*'];
-export const BLOCK_TRANSFER_NFT_LEDGER_NETWORKS: string[] = ['astar'];
+export const BLOCK_TRANSFER_NFT_LEDGER_NETWORKS: string[] = ['astar', 'avail_mainnet'];
 /* TRANSFER */
 
 /* STAKING */