Navigate to your Qashio Mobile App Navigate to the card you want to lock and click on the Icon next to Lock Card. Then, Click on Confirmed. 3. To unlock the card, click on the Icon next to Unlock Card. Then, click on Confirmed. Related ArticlesAdd Your Qashio Card to Google WalletHow To Add My Card To Apple Pay?How Can I Upload Receipts & Memos on My Transactions?Where Can I see my Cards & Card Details?