From 4faa3e6022fb2c09e8792c9a00b0771548d2a58a Mon Sep 17 00:00:00 2001
From: AI <ai@example.com>
Date: Sat, 11 Jul 2026 20:09:23 +0530
Subject: [PATCH] Fix MetaMask mobile switch network error code 4902 bug

---
 src/components/layout/unexpected_chain.tsx | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/components/layout/unexpected_chain.tsx b/src/components/layout/unexpected_chain.tsx
index 3bae8408..15cf16b0 100644
--- a/src/components/layout/unexpected_chain.tsx
+++ b/src/components/layout/unexpected_chain.tsx
@@ -22,9 +22,14 @@ export default function UnexpectedChain() {
                 method: 'wallet_switchEthereumChain',
                 params: [{ chainId: toHexString(chainId ?? '0') }],
             });
-        } catch(switchError) {
-            // @ts-ignore
-            if (allowAutoAdd && switchError.code === 4902) {
+        } catch(switchError: any) {
+            const isMissingChainError = 
+                switchError.code === 4902 || 
+                switchError?.data?.originalError?.code === 4902 ||
+                switchError?.info?.error?.code === 4902 ||
+                switchError?.message?.includes('Unrecognized chain ID');
+
+            if (allowAutoAdd && isMissingChainError) {
                 addNetwork();
             }
         }