version is low. Huawei Wallet is an application software based on EMUI system developed by Huawei Software Technology Co., Ltd., which can put all kinds of cards, certificates, tickets, vouchers and keys into wallets. If the version is too low, it will be impossible to add the credit card of CITIC Bank, so it can be solved by updating the software. Huawei Wallet supports the addition of bank cards, transportation cards, eID (Citizen Network Electronic Identity), change, membership cards, invoices, community access cards, smart home lock cards, smart hotel room cards, etc., and can satisfy life scenes such as transportation and mobile payment through a mobile phone.