What should I do if my mobile phone can't receive the verification code and log in to Unicom's business hall?

If the phone is turned off or the SMS function is turned off due to arrears, so the phone can't log in to the Unicom mobile phone business hall APP without receiving the verification code, you can log in with the service password. If you need to verify the random code because a new device logs in, you cannot log in with the service password. You can use the mobile APP after the SMS function is restored, or you can consult and handle business in other ways, such as 100 10 hotline and online customer service in online business hall.