Future Tec

When using $USDT on a new website for the first time, start with a small allowance and a small amount.

[Conclusion]
When granting an allowance for the first time, use a small amount to test the whole process.

[Follow these steps]
1. Set a small allowance
2. Exchange a small amount too
3. Increase it only if everything works

Do you start with a small amount on new websites?

Future Technology: https://x.com/wlkjtec

#钱包 $USDT

The network used for a small $USDT test. For larger amounts, follow your notes—don’t rely on memory.

[Conclusion]
Wait ten minutes before transferring a larger amount, and you may forget which network you just selected.

[Follow these steps]
1. Write down the full network name
2. Use your notes when transferring larger amounts
3. Don’t rely on memory

Will you write down the network you used for the test?

Future Technology: https://x.com/wlkjtec

#币安 $USDT

Before swapping $SOL , check how much is left. If it’s 0, the next transaction will fail.

[Conclusion]
Check how much SOL you have left every time you swap. It’s cheaper than fixing things afterward.

[What to do]
1. Check your remaining balance before swapping
2. If it’s below your personal minimum, stop
3. Set your own minimum, but don’t make it 0

Have you ever set a minimum SOL balance for yourself?

Future Technology: https://x.com/wlkjtec

#Solana $SOL

$ETH has a high confirmation count, but you still need to first prove that the receiving address is yours.

【Conclusion】
No matter how high the confirmation count is, if the receiving address is wrong, the money isn’t yours.

【Follow these steps】
1. Check the address first
2. Then check the confirmations
3. Finally, check the amount

Do you check the confirmation count first or the address?

Future Technology: https://x.com/wlkjtec

#钱包 $ETH

$BTC shows funds in the contracts account, but the withdrawal page can still show a zero balance.

【Conclusion】
Funds in your contracts account must first be transferred back to your Spot or Funding account before you can withdraw them.

【Steps to follow】
1. Check your account first
2. Transfer the funds back, then withdraw
3. Internal transfers don't generate a hash

Have you ever transferred funds out of your contracts account?

Future Technology: https://x.com/wlkjtec

#币安 $BTC

The price impact of $SOL tells you whether this pool can handle that amount.

【Conclusion】
Price impact shows whether the pool is deep enough to handle this amount.

【What to do】
1. Low impact means the pool is deep enough
2. High impact? Reduce the amount
3. Don’t use slippage to pretend the pool is deeper than it is

Have you ever mistaken price impact for pool depth?

Future Technology: https://x.com/wlkjtec

#滑点 $SOL

$USDT cross-chain transfer has been pending for over two minutes? First check how many minutes the documentation says.

[Conclusion]
Both a few minutes and dozens of minutes are common. If it hasn't reached the time stated in the documentation, don't assume it's failed yet.

[Follow these steps]
1. Note the estimated time
2. Keep the hash
3. Check the official status after it times out

How long would you wait before getting worried?

Future Technology: https://x.com/wlkjtec

#DeFi $USDT

Can't read the $ETH signature? Canceling is safer than guessing.

【Conclusion】
Canceling the signature won't transfer your coins. If you can't read it, cancel.

【What to do】
1. Canceling won't cost you any tokens
2. Reopen the site from its official website
3. Read it again

Do you often click Cancel?

Future Technology: https://x.com/wlkjtec

#钱包 $ETH

$BNB You pasted the address correctly, but if the wallet is still set to Ethereum at the top, your coins will go to another chain.

【Conclusion】
You can copy the address correctly, but the network at the top may still be Ethereum.

【Follow these steps】
1. Check the network at the top before transferring
2. Switch to BSC if that's what you need
3. Paste the address after switching

Do you check the network at the top before transferring?

Future Technology: https://x.com/wlkjtec

#BSC $BNB

If the swap button keeps spinning or the transaction fails outright, the first thing to do is not change slippage from 0.5% to 5%.

[Conclusion]
Check the reason for the failure first. Incomplete approval, insufficient native tokens to pay fees, and an expired route have nothing to do with slippage. Only after confirming that slippage is the issue should you increase it by 0.1 to 0.3 percentage points.

[Analysis]
A typical result of setting slippage too low is that the transaction fails after being included in a block because the price has moved outside the allowed range—and the gas has already been charged. Insufficient approval is usually blocked by the wallet before signing, or rejected directly by the contract. If you don't have enough native tokens such as BNB, ETH, or SOL, you can't submit the transaction, no matter how many tokens you hold. On Solana, you also need to leave some SOL for rent.

[What to do]
1. Check the exact message in your wallet or block explorer; don't just look at “Failed.”
2. Check whether you've approved this token, and whether the approval is for the current route.
3. Check that your native token balance is enough to cover this transaction.
4. Only increase slippage slightly if the message says it was exceeded, then check the minimum amount you'll receive again.

[What went wrong]
Increasing slippage more and more after each failure. The final transaction succeeds, but the execution price lands right at the lower limit you set by widening the slippage.

Future Technology: https://x.com/wlkjtec

#链上笔记 #滑点 #钱包 $BNB $SOL

Before you tap Withdraw for $USDT, check the debit account and network first.

[Conclusion]
The debit account and network are the two most expensive lines on the withdrawal page.

[Follow these steps]
1. Check the account on the first line
2. Check the network on the second line
3. Only then enter the amount

Do you check the amount or the network first?

Future Technology: https://x.com/wlkjtec

#币安 $USDT

If you haven’t checked your $USDT approval list this week, use a single gas transaction to revoke any approvals you don’t recognize.

【Takeaway】
Approvals are scattered across every site you’ve used, and if you don’t check them regularly, you’ll forget about them.

【Follow these steps】
1. Set a regular day
2. Check BSC and SOL separately
3. Revoke anything you don’t recognize first

Have you added approval checks to your weekly routine?

Future Technology: https://x.com/wlkjtec

#钱包 $USDT

$BNB Confirmed it’s a slippage failure. Increase it only a little—don’t max it out all at once.

[Conclusion]
Once you’ve confirmed it’s a slippage issue, increase it by 0.1 to 0.3 percentage points, then check the minimum received amount again.

[Steps]
1. Don’t jump straight to 5%.
2. After increasing it, check the minimum amount you’ll receive.
3. If it still fails, reduce the amount.

How much have you increased it by at once?

Future Technology: https://x.com/wlkjtec

#滑点 $BNB

Someone sent a bridge link in a DM. Don’t use it to transfer $ETH .

【Bottom line】
DMs, pinned group messages, and shortened links are not documentation.

【Follow these steps】
1. Enter through a button on the official website
2. Check the browser address
3. Then select the chain

Have you ever opened a bridge link from a DM?

Future Technology: https://x.com/wlkjtec

#DeFi $ETH

$SOL On Jupiter, the output token is the first thing to check, and the priority fee is the last.

【Bottom line】
Priority fees and slippage both matter, but if the output token is wrong, getting the fee right won’t help.

【Check in this order】
1. Check the mint first
2. Then check the price impact
3. Finally, check the priority fee

What order do you check when looking at a quote?

Future Technology: https://x.com/wlkjtec

#Solana $SOL

If the wallet prompt says Approve, it’s not a routine login.

[Conclusion]
Sign in, Approve, Permit, and Transaction each carry different risks.

[What to do]
1. Read the title first
2. Check the allowance for Approve
3. Check the recipient and amount for Transaction

Do you check the title on the pop-up?

Future Tech: https://x.com/wlkjtec

#钱包 $ETH

$BTC The test transaction is still being confirmed, so leave the remaining amount on Binance for now.

【Conclusion】
If the small amount hasn’t arrived, don’t send the large amount.

【Follow these steps】
1. Wait for the test transaction to complete
2. Send only if all three items are unchanged
3. If it hasn’t arrived, stop at the test stage

How many more confirmations will you wait for before transferring the rest?

Future Technology: https://x.com/wlkjtec

#币安 $BTC

$USDT authorization succeeded, but you still need to check whether you authorized the contract you intended.

【Conclusion】
A successful transaction only means the authorization was recorded on-chain. It doesn’t mean the recipient was correct.

【What to do】
1. Check the spender after it succeeds
2. Revoke it if it’s wrong
3. Don’t make another exchange before revoking it

Will you check the recipient again after it succeeds?

Future Technology: https://x.com/wlkjtec

#钱包 $USDT

If the $USDT allowance is a long string of 9s, treat it as unlimited.

[Conclusion]
If the allowance is displayed as lots of 9s, treat it as unlimited.

[What to do]
1. Stop as soon as you see it
2. Lower the amount or reject it
3. If you’ve already approved it, plan to revoke it

Have you seen an allowance like this?

Future Technology: https://x.com/wlkjtec

#BSC $USDT

When bridging $USDT, looking only at the chain icon can lead you to choose a different chain with the same name.

【Conclusion】
The icons may look the same, but the full chain names may differ.

【Follow these steps】
1. Read the full name of the source chain
2. Read the full name of the destination chain
3. Use the icon only as a guide

Have you read the full chain names?

Future Technology: https://x.com/wlkjtec

#DeFi $USDT