If you do a transaction (Send or Swap) that doesn’t get picked up (too low gas fee) you can replace or cancel it by doing the following.
Lets say you were sending USD C from Trust wallet to Celcius.network and it’s too low of gas fees so you want to CANCEL the transaction.
Step 1) Find out the NONCE of the transaction by going into the stuck transaction and look for NONCE (may have to hit the setting button or look on Etherscan if your wallet doesn’t expose it directly to you.
Step 2) Go into your currency that you are trying to cancel and copy your public USD C wallet address by going into the USD C wallet and hit receive (copy that address).
Step 3) Start a new transaction inside your USD C where you are SENDING USD C out. Put in your own USD C wallet address as the recipient and put in 0 USD C to send. Click continue.
Step 4) On the confirmation screen click the setting icon in the upper right hand corner. and there are 3 things you can change here. 1) The NONCE, 2) The Miner Tip, 3) The Max Fee. The NONCE - this must be changed to match the NONCE of the stuck transaction. Make sure you make them match. Technically this is all that needs changed. So try to complete the send at this point. It may 0 out the stuck transaction. However, if you get the error saying “replacement transaction underpriced” you must make changes to the Miner Tip (GWEI) and the Max Fee (GWEI). I increased Miner Tip to 2.5 and Max Fee to 300 in my example. Once that was complete the error went away and the transaction canceled out.
Lets say you were swapping ETH for USD C from Trust wallet to Celcius.network and it’s too low of gas fees so you want to REPLACE the transaction.
Step 1) Find out the NONCE of the transaction by going into the stuck transaction and look for NONCE (may have to hit the setting button or look on Etherscan if your wallet doesn’t expose it directly to you.
Step 2) Go into your currency that you are trying to cancel and copy your public USD C wallet address by going into the USD C wallet and hit receive (copy that address).
Step 3) Go into your ETH and hit Swap. Swap ETH for USD C. Choose exactly the same amount that you are trying to replace and copy your paste the USD C public wallet address as the recipient address and put the 0.2 ETH (example) as the swap amount - same amount as before).
Step 4) On the confirmation screen click the setting icon in the upper right hand corner. and there are 3 things you can change here. 1) The NONCE, 2) The Miner Tip, 3) The Max Fee. The NONCE - this must be changed to match the NONCE of the stuck transaction. Make sure you make them match. Technically this is all that needs changed. So try to complete the send at this point. It may 0 out the stuck transaction. However, if you get the error saying “replacement transaction underpriced” you must make changes to the Miner Tip (GWEI) and the Max Fee (GWEI). I increased Miner Tip to 2.5 and Max Fee to 300 in my example. Once that was complete the error went away and the transaction canceled out.