You can unstake your assets anytime from any pool you have participated in. However, while you are allowed to unstake any amount of assets from an active pool, you will have to unstake all assets at once from a closed pool.
For active mining pools, please follow the steps below to claim & unstake assets:
1) Go to "Liquidity Mining" on the homepage and click "Manage" in a liquidity mining pool you have participated in to open the Supply/Withdrawal popover;
2) Click on the "Claim" tab and fill in the amount of assets you wish to unstake in the "Unstaking Amount" field;
3) Click "Claim & Unstake" and you will see a popover from TronLink asking for your signature. Click "Accept" to claim and unstake your assets.
For closed mining pools, please follow the steps below to claim & unstake assets:
1) Click "Previous" on the homepage to view all closed pools. Find a liquidity pool that you have participated in where your assets have not been unstaked, and click "Claim & Unstake";
2) You will see a popover from TronLink asking for your signature. Click "Accept" to claim and unstake your assets.