Step 1: Open the staking tab in Homepage and click on the current staking activity that you want to unstake.
Step 2: Click the "Unstake" button.
Step 3: Fill in the details for unstaking request. Then click "Submit".
If you are in all-accounts mode like the current example, you would need to choose the staking account.
If you have already been in a single account, you would not have to select account.
A completed unstaking request would look like the following image:
Step 4: Click "Approve" to confirm unstaking.
Step 5: Enter password and click "Apply".
And your unstaking request has been submitted. You could see your staking transaction in the History tab.
If you click "view transaction", the wallet would show you the latest transaction record in your transaction history which corresponds with the extrinsic hash of this action.