Mint button not working on mobile app

Hello, I’m doing a mint page on a website, its working fine on desktop using MetaMask its also working on mobile using trustwallet, but its not working on mobile using MetaMask app, I’m using latest ios version, with latest MetaMask version.

After “Contract instance created.” nothing is happening. I tried 3 RPC, I’m using the same wallet everywhere, I removed and re-installed the app.

Do you have any idea why it would work everywhere except MetaMask mobile ?

<!-- Load web3.js -->
<script src="" referrerpolicy="no-referrer"></script>

    let web3;
    let accounts = [];
    const contractAddress = '0x0012989e982c2c473e36418384ab707c72f2b782';
    const contractABI = [a really long ABI];

    jQuery(document).ready(function($) {
      console.log("Document is ready.");
      // When the "Connect Wallet" button is clicked
      $('.connect-wallet-btn').on('click', async function() {
        console.log("Connect Wallet button clicked.");
        if (typeof window.ethereum !== 'undefined') {
          console.log("Ethereum object detected.");
          web3 = new Web3(window.ethereum);
          try {
            // Request account access
            console.log("Requesting account access.");
            accounts = await window.ethereum.request({
              method: 'eth_requestAccounts'
            console.log("Accounts retrieved:", accounts);
            // Display the connected wallet address
            if (accounts && accounts[0]) {
              const shortAddress = `${accounts[0].substr(0,6)}...${accounts[0].substr(-4)}`;
            const networkId = await;
            if (networkId !== 137) {
              try {
                await window.ethereum.request({
                  method: 'wallet_switchEthereumChain',
                  params: [{
                    chainId: '0x89'
              } catch (switchError) {
                if (switchError.code === 4902) {
                  try {
                    await window.ethereum.request({
                      method: 'wallet_addEthereumChain',
                      params: [{
                        chainId: '0x89',
                        chainName: 'Polygon',
                        nativeCurrency: {
                          name: 'MATIC',
                          symbol: 'MATIC',
                          decimals: 18
                        rpcUrls: [''],
                        blockExplorerUrls: ['']
                  } catch (addError) {
                    console.error("There was an issue adding the network.");
                } else {
                  console.error("There was an issue switching to Polygon.");
          } catch (error) {
            console.error("User denied account access");
        } else {
          alert('No Ethereum browser extension detected. Please install MetaMask or another Web3-capable browser extension.');
      // When the "Mint NFT" button is clicked
      $('.mint-nft-btn').on('click', async function() {
        console.log("Mint NFT button clicked.");
        if (!web3 || !accounts || accounts.length === 0) {
          console.log("No Web3 instance or accounts detected.");
          alert('Please connect your wallet first.');
        console.log("Creating contract instance.");
        const contract = new web3.eth.Contract(contractABI, contractAddress);
        console.log("Contract instance created.");
        console.log("Contract methods:", contract.methods);
        const mintPriceInMATIC = 100;
        const mintPriceInWei = web3.utils.toWei(mintPriceInMATIC.toString(), 'ether'); // Convert MATIC to Wei
        // Check user's balance
        const userBalance = await web3.eth.getBalance(accounts[0]);
        if (BigInt(userBalance) < BigInt(mintPriceInWei)) {
          alert('Insufficient funds to mint the NFT.');
        // Estimate the gas for the minting function
        const estimatedGas = await[0], 1, "").estimateGas({
          from: accounts[0],
          value: mintPriceInWei
        try {
          console.log("Attempting to mint NFT.");
          await[0], 1, "").send({
            from: accounts[0],
            value: mintPriceInWei,
            gas: estimatedGas,
            maxPriorityFeePerGas: null, // Allow MetaMask to suggest the gas fee
            maxFeePerGas: null // Allow MetaMask to suggest the gas fee
          console.log("NFT minted successfully.");
        } catch (err) {
          console.error("There was an error minting the NFT:", err);

Hi @Decrypt where did you get this code are you using mm mobile sdk?

Hello, this is the code I wrote for my project.

What is the utility of mm mobile sdk exactly ? it’s not possible to write a mint button without using it ? because trust wallet mobile app is not having any problem with it.

No it should work without using an sdk then, it’s fine to write it yourself. I found this passed topic: When i use dapp on mobile on metmask browser minting does not work but on desktop it works - #4 by Tksly Check it out let me know if it helps

Yes thank you ! I already saw this topic, I tried to delete, re-install, reset app, reboot phone and so on, but still not working, I sent the mint page to 3 of my friends with different phones and none of them were able to mint using the MM mobile app :confused:

The code is pretty straight forward, I tried to delete some parts, like for the fees, but nothing was happening on MM app. Only desktop is working, or trust wallet on mobile.

Could you please open a ticket:

Yes sure, thank you for the link

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