The locked doors are all accessed by completing the main story and side missions which will give you access to all actually there are many doors that you need smartglass to open.
How do you unlock locked doors in dead rising 3.
Again there is nothing important behind these particular doors.
If you use xbox one smartglass on a tablet or smartphone or windows 8 computer you can get extra side missions which have codes as rewards.
Some of these side missions result in opening those doors.
How to open doors with red pannel on them or this weird boxes that in the city.
Rludeman44 topic creator 6 years ago 3 teknokid7 posted.
Some buildings have multiple ways in and the door can then be opened from within some doors are opened during main missions and others open during side missions.
You will find keys this way doors will become unlocked.
Just do side missions follow along with the story.
He will need to find a way to unlock the doors to escape the metro station.
After nick reaches the sunset hills metro station he will find that the door has been locked by the biker gang.
Doors are normally unlocked by either finding an alternate route and opening it from the other side or completing side missions.
Search all round the building including the roof if possible.
For dead rising 3 on the xbox one a gamefaqs message board topic titled locked doors.