you can't use a white note for JD.COM's flash payment. When JD.COM Flash Pay is used, only the bound savings card and credit card can be used for debit transactions. JD.COM Flash Payment is launched by Jingdong Finance for JD.COM users. It is mainly based on NFC, HCE (UnionPay China Unionpay Quick Pass) and payment marking technology, and realizes the collection and payment of funds between individuals and merchants through non-connected interaction. There will be a limit on the daily use of flash payment in JD.COM. According to the regulations, the daily limit of flash payment for a single account in JD.COM is 2, yuan, and the monthly cumulative limit is 5, yuan. In order to ensure the safety of users' funds, the actual transaction limit of flash payment in JD.COM will be different according to the risk situation, transaction scenario and regulatory requirements of the account.