When a defendant in custody asserts her right to counsel that government ignores, and officer then asks defendant for her password to unlock phone & she tells him, the password is suppressed under Miranda but the contents of the phone are admissible. courtlistener.com/recap/gov.usco… 
Although the court's analysis is a little murky, I think this result is correct as explained here. washingtonpost.com/news/volokh-co…
Note that no warrant was required to search the computer in this case under the border search exception.
