Given the prevalence of smartphones nowadays, Wells Fargo has announced plans to upgrade all 13,000 of its ATMs next week to allow customers to access their money using their cellphones instead of traditional bank cards. Wells Fargo would be the first to upgrade all of its ATMs with the feature across the United States. ABC News reports: To access their money, customers would get unique eight-digit codes from their Wells Fargo smartphone app, and enter the code into the ATM along with their PIN number. The machines will still accept debit cards as well. One limitation of the one-time code, though, is that it won't work on the secure doors that many branches have for non-business hours that require a customer to swipe an ATM or debit card to gain entry. Wells Fargo said those secure doors are found at a small percentage of branches, mostly in major metropolitan areas like New York City or Chicago. Wells said it plans to roll out another upgrade to its ATMs later this year, which will allow customers to access the ATMs by holding their smartphones up to a reader on the machine, instead of entering the eight-digit code. It would be similar to using Apple Pay or Samsung Pay, the bank said.