diff --git a/app/page.tsx b/app/page.tsx
index 40bcc8b..2af65cf 100644
--- a/app/page.tsx
+++ b/app/page.tsx
@@ -3,7 +3,7 @@
 import { useState, useRef, useEffect } from 'react';
 import { useWallet } from '@solana/wallet-adapter-react';
 import { Connection, PublicKey, Transaction } from '@solana/web3.js';
-import {createTransferInstruction, getAssociatedTokenAddress, createAssociatedTokenAccountInstruction } from '@solana/spl-token';
+import {createTransferInstruction, getAssociatedTokenAddress, createAssociatedTokenAccountInstruction, TOKEN_PROGRAM_ID } from '@solana/spl-token';
 import Header, { HeaderRef } from './components/Header';
 import Leaderboard from './components/Leaderboard';
 import { CLUSTER_URL, ENTRY_FEE_DINO } from './shared';
@@ -168,6 +168,25 @@ export default function Home() {
       return;
     }
 
+    // CRITICAL: Verify wallet connection is stable for mobile wallets
+    if (isMobileDevice()) {
+      console.log('Mobile device detected - verifying wallet connection...');
+      
+      // Check if wallet is still connected
+      if (!wallet.connected || !wallet.publicKey) {
+        setError('Wallet connection lost. Please reconnect your wallet and try again.');
+        return;
+      }
+      
+      // Verify public key matches
+      if (!wallet.publicKey.equals(publicKey)) {
+        setError('Wallet public key mismatch. Please refresh the page and reconnect your wallet.');
+        return;
+      }
+      
+      console.log('Mobile wallet connection verified successfully');
+    }
+
     setIsProcessing(true);
     setError(null);
     setTxHash(null);
@@ -239,11 +258,30 @@ export default function Home() {
         transferAmount
       );
       
-      // Validate the transfer instruction
-      if (!transferIx.programId.equals(dinoMint)) {
-        console.warn('Transfer instruction program ID mismatch');
+      // CRITICAL: Validate the transfer instruction for mobile wallets
+      console.log('Transfer instruction validation:');
+      console.log('- From account:', userTokenAccount.toString());
+      console.log('- To account:', feeCollectorTokenAccount.toString());
+      console.log('- Authority:', publicKey.toString());
+      console.log('- Amount (lamports):', transferAmount);
+      console.log('- Program ID:', transferIx.programId.toString());
+      console.log('- Expected SPL Token Program ID:', TOKEN_PROGRAM_ID.toString());
+      
+      // Ensure the instruction is using the correct SPL Token program
+      if (!transferIx.programId.equals(TOKEN_PROGRAM_ID)) {
+        throw new Error(`Transfer instruction program ID mismatch. Expected ${TOKEN_PROGRAM_ID.toString()}, got ${transferIx.programId.toString()}`);
       }
       
+      // Ensure the instruction is properly formatted
+      if (!transferIx.keys || transferIx.keys.length === 0) {
+        throw new Error('Transfer instruction missing required account keys');
+      }
+      
+      // Log all account keys in the instruction
+      transferIx.keys.forEach((key, index) => {
+        console.log(`- Key ${index}: ${key.pubkey.toString()} (${key.isSigner ? 'signer' : 'non-signer'}, ${key.isWritable ? 'writable' : 'readonly'})`);
+      });
+      
       transaction.add(transferIx);
       console.log('Added transfer instruction');
 
@@ -253,6 +291,17 @@ export default function Home() {
       transaction.lastValidBlockHeight = lastValidBlockHeight;
       transaction.feePayer = publicKey;
 
+      // CRITICAL: Double-check that all required fields are set for mobile wallets
+      if (!transaction.feePayer) {
+        throw new Error('Transaction fee payer not set - this will cause signature verification to fail');
+      }
+      if (!transaction.recentBlockhash) {
+        throw new Error('Transaction blockhash not set - this will cause signature verification to fail');
+      }
+      if (!transaction.lastValidBlockHeight) {
+        throw new Error('Transaction lastValidBlockHeight not set - this will cause signature verification to fail');
+      }
+
       // Ensure the transaction is properly formatted for mobile wallets
       console.log('Transaction details before preflight:');
       console.log('- Recent blockhash:', transaction.recentBlockhash);
@@ -337,8 +386,25 @@ export default function Home() {
         // If mobile-optimized fails, try with preflight disabled for mobile wallets
         if (isMobileDevice()) {
           try {
+            // Create a completely fresh transaction with new blockhash
+            console.log('Creating fresh transaction for mobile wallet fallback...');
+            const freshTransaction = new Transaction();
+            
+            // Re-add all instructions
+            transaction.instructions.forEach(instruction => {
+              freshTransaction.add(instruction);
+            });
+            
+            // Get fresh blockhash
+            const { blockhash: freshBlockhash, lastValidBlockHeight: freshLastValidBlockHeight } = await connection.getLatestBlockhash('confirmed');
+            freshTransaction.recentBlockhash = freshBlockhash;
+            freshTransaction.lastValidBlockHeight = freshLastValidBlockHeight;
+            freshTransaction.feePayer = publicKey;
+            
+            console.log('Fresh transaction created with new blockhash');
+            
             signature = await sendTransactionWithMobileOptimization(
-              transaction,
+              freshTransaction,
               connection,
               wallet,
               {
diff --git a/app/utils/mobileWalletUtils.ts b/app/utils/mobileWalletUtils.ts
index cae3a13..d547254 100644
--- a/app/utils/mobileWalletUtils.ts
+++ b/app/utils/mobileWalletUtils.ts
@@ -31,8 +31,32 @@ export async function sendTransactionWithMobileOptimization(
     transaction.lastValidBlockHeight = lastValidBlockHeight;
   }
 
-  if (!transaction.feePayer && wallet.publicKey) {
-    transaction.feePayer = wallet.publicKey;
+  // CRITICAL: Ensure fee payer is set correctly for mobile wallets
+  if (!transaction.feePayer) {
+    if (wallet.publicKey) {
+      transaction.feePayer = wallet.publicKey;
+      console.log('Mobile wallet utility: Set fee payer to:', wallet.publicKey.toString());
+    } else {
+      throw new Error('Wallet public key not available');
+    }
+  }
+
+  // Double-check that all required fields are present
+  console.log('Mobile wallet utility: Transaction validation:');
+  console.log('- Fee payer:', transaction.feePayer?.toString());
+  console.log('- Recent blockhash:', transaction.recentBlockhash);
+  console.log('- Last valid block height:', transaction.lastValidBlockHeight);
+  console.log('- Number of instructions:', transaction.instructions.length);
+
+  // Validate transaction structure for mobile wallets
+  if (!transaction.feePayer) {
+    throw new Error('Transaction missing fee payer - required for mobile wallets');
+  }
+  if (!transaction.recentBlockhash) {
+    throw new Error('Transaction missing recent blockhash - required for mobile wallets');
+  }
+  if (transaction.instructions.length === 0) {
+    throw new Error('Transaction has no instructions');
   }
 
   // Preflight check for mobile wallets
@@ -60,12 +84,24 @@ export async function sendTransactionWithMobileOptimization(
   
   for (let attempt = 1; attempt <= maxRetries; attempt++) {
     try {
+      console.log(`Mobile wallet utility: Attempt ${attempt} of ${maxRetries}`);
+      
+      // Ensure transaction is fresh for each attempt
+      if (attempt > 1) {
+        const { blockhash, lastValidBlockHeight } = await connection.getLatestBlockhash(commitment);
+        transaction.recentBlockhash = blockhash;
+        transaction.lastValidBlockHeight = lastValidBlockHeight;
+        console.log('Mobile wallet utility: Refreshed blockhash for retry');
+      }
+
       const signature = await wallet.sendTransaction(transaction, connection, {
         skipPreflight,
         preflightCommitment,
         maxRetries: 1, // We handle retries ourselves
       });
 
+      console.log('Mobile wallet utility: Transaction sent successfully, signature:', signature);
+
       // Wait for confirmation
       const confirmation = await connection.confirmTransaction({
         signature,
@@ -77,19 +113,17 @@ export async function sendTransactionWithMobileOptimization(
         throw new Error(`Transaction failed: ${confirmation.value.err}`);
       }
 
+      console.log('Mobile wallet utility: Transaction confirmed successfully');
       return signature;
     } catch (error) {
       lastError = error as Error;
-      console.warn(`Transaction attempt ${attempt} failed:`, error);
+      console.warn(`Mobile wallet utility: Transaction attempt ${attempt} failed:`, error);
       
       if (attempt < maxRetries) {
         // Wait before retry (exponential backoff)
-        await new Promise(resolve => setTimeout(resolve, Math.pow(2, attempt) * 1000));
-        
-        // Refresh blockhash for retry
-        const { blockhash, lastValidBlockHeight } = await connection.getLatestBlockhash(commitment);
-        transaction.recentBlockhash = blockhash;
-        transaction.lastValidBlockHeight = lastValidBlockHeight;
+        const waitTime = Math.pow(2, attempt) * 1000;
+        console.log(`Mobile wallet utility: Waiting ${waitTime}ms before retry...`);
+        await new Promise(resolve => setTimeout(resolve, waitTime));
       }
     }
   }