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How to Lock or Unlock Your UOB Card

Temporarily lock a misplaced UOB debit or credit card in the UOB TMRW app — and unlock it the same way.

SG flagSingaporeUOB1 min readUpdated 15 Jul 2026

Agent guide. Use these steps to walk the client through the process — the screenshots show exactly what they’ll see on screen.

If the client has misplaced a card, they can temporarily lock it in the UOB TMRW app to stop it being used, then unlock it the same way once it turns up — no need to cancel the card.

Before you start

  • The UOB TMRW app
  • The client's login (or Face ID / Touch ID)
  • The card to lock

💡 Tip: Locking is instant and reversible. If the card is lost or stolen rather than just misplaced, report it and order a replacement instead.

Frequently asked questions

How do I unlock it again?

Tap the "Lock card" icon on the card summary screen again to unlock.

Should I lock or report the card?

Lock it if it's just misplaced. If it's lost or stolen, report it and order a replacement.

  1. 1

    Open Accounts

    Log in to UOB TMRW and tap "Accounts".

    Open Accounts
  2. 2

    Select the card

    Select the debit or credit card you want to lock.

  3. 3

    Tap Lock card

    Go to the "Services" tab and tap the "Lock card" icon.

  4. 4

    Confirm the request

    At the prompt, tap "Lock now" to proceed.

  5. 5

    Review and confirm

    Review the details and swipe right to confirm.

  6. 6

    Done

    Your card is locked. To unlock it, tap the "Lock card" icon on the card summary screen again.

Reference for assisting clients. Bank screens, steps and limits change often — always confirm the current process with UOB before advising the client.