What happens when I sign in to a new device which is different from the device I registered on? Hafiz Follow You will be prompted to key in your 6-Digit PIN once you sign in using your mobile number and password. To ensure your wallet’s security, we will remove your saved credit/ debit details. Reenter your card details to start transacting! Related articles Why is my saved card not visible when I sign into a new device? I tried to key in my password or PIN and got logged out of the app. Once I try to sign in, it says my account is locked. Why is my mobile number in use when I register? I have reached the maximum number of accounts that I can create on my phone. Why is this so? How do I register for a Boost account? Comments 0 comments Article is closed for comments.