After applying to unstake your TRX, you have to wait for 14 days before you can withdraw the unstaked asset. During this time, if you want to cancel the unstaking request and make your TRX back to the Staked state, you can cancel TRX unstaking through the following steps:
Step 1: Enter TRONSCAN and click "Connect Wallet" in the upper-right corner.
Step 2: Move the pointer over your connected address and click "Energy>" or "Bandwidth>". You are then directed to "Resources" > "Stake 2.0".
Step 3: In "Stake 2.0", click the "My Stake" tab. Then, click “Cancel Unstake” in the “Unstaking” section.
Step 4: Click “Confirm” in the pop-up and then sign the transaction in your TronLink extension.
After the transaction is confirmed on-chain, the TRX in the unstaking process is staked again, and the corresponding resources and TRON Power are sent back to your account.