MetaMask - Invalid amount in MetaMask app on iPhone

[PoorMillionaire]

Hello, I am using Moralis for simple token transfer from one wallet to another. My code:

And this works great on desktop (Chrome MetaMask plugin):

But when I wanna use this on my phone - iPhone (MetaMask app), I always get error “Invalid amount”, and I don’t understand why, since I am executing same action.

Any idea?

[cryptokid]

strange, I don’t have an idea now, you could look at view data in both cases to see if there is a difference

[alex]

Try using a static amount in your options if you haven’t already.

[PoorMillionaire]

Data Desktop (works):

Data Mobile (do not work):

My network settings:

[PoorMillionaire]

I tried. Same result. Works only on desktop.

[cryptokid]

can you try to update metamask on mobile? in case that it is an older version

[PoorMillionaire]

I have last version installed.

[PoorMillionaire]

So there is no solution to that matter?

[cryptokid]

Can you try to make that transfer directly with web3 or ethers?
You could try a simpler transfer that sends only MATIC from one account to another account.

I would think that it is a problem related to metamask application.

[PoorMillionaire]

I tried to send MATIC directly with ethers.js, and this is working on both desktop and mobile. My code:

[cryptokid]

strange, as it should to the same thing

[PoorMillionaire]

So I guess there is problem with erc20, since its working with native matic.

[aglo]

Same issue on android metamask app. Works fine for native transfers. I also confirmed the raw transaction data matches.

[PoorMillionaire]

Yes, I can send BNB on binance chain no problem, also MATIC on mumbai polygon chain, native works on desktop and mobile.

But erc20 works only on desktop. But I still dont know if this is metamask mobile problem or Moralis?

[Scoly]

Having the exact same problem!
Did you manage to solve it somehow? Or understand why it happens ?

[PoorMillionaire]

Nop, it’s not working. I though Moralis team would want to solve this problem, but there is no response…

[cryptokid]

did you try with ethers directly and it worked with an ERC20 token?

[PoorMillionaire]

No, do you have example how to do it?

[cryptokid]

you can try something like this:

abi = [
{
        "constant": false,
        "inputs": [
            {
                "name": "_to",
                "type": "address"
            },
            {
                "name": "_value",
                "type": "uint256"
            }
        ],
        "name": "transfer",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
]

ethers = Moralis.web3Library
web3 = await Moralis.enableWeb3()
signer = web3.getSigner()
contract = new ethers.Contract("0xcontract_address", abi, web3)
await contract.connect(signer).transfer("0x321314124", 100)

I didn’t test it if it really works

[PoorMillionaire]

Ok I tried this. Had to change value to ethers.utils.parseUnits(Amount, 18).

Result is, that this also worked only on desktop, but not on mobile app