> For the complete documentation index, see [llms.txt](https://startower.gitbook.io/star-tower-chain/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://startower.gitbook.io/star-tower-chain/btc-wallet/how-to-use-btc-acceleration-function.md).

# How to use BTC acceleration function

1.Open the BTC wallet of StarTower, click on the BTC token to view the transaction list. In the list, you can see a status prompt \[Submitted, waiting for block confirmation]. This is often due to the Pending status on the chain caused by less Gas (mining fee) payment.

2\. You can also see the pending confirmation status prompt in the transaction details interface. Click \[Transaction Acceleration] at the bottom of the interface to jump to the acceleration page. You can see the relevant data of the hash value on the page. The payment method supports stable currency payment of various public chains. You can pay through the required acceleration fee displayed. Please make sure that the payment fee is consistent with the prompted fee.

After confirming the data, click \[Pay Now], and you will be redirected to the interface for selecting wallet payment, and then you can pay normally. Please wait patiently after payment. Acceleration does not mean that the package and transaction will be completed immediately after payment. It will take some time, so please wait patiently.

3.If you are a StarTower Wallet user, since you have not added the entry for accelerated transactions in the transaction details, you need to copy the hash value that needs to be accelerated to the main interface of StarTower Wallet, click \[Transaction Acceleration] on the upper right side, open it, fill in the hash value in the address bar at the top and click Query.

4.Fill in the correct hash value for query, you can see the prompted data information, payment method, fees to be paid, etc. Click \[Pay Now] and call the address imported in the wallet to pay the acceleration fee. If the hash value filled in is incorrect, you can see the prompt message \[Transaction does not exist].