When it is time to get into the room, with the mobil phone you booked with, from the "open doors" option that is shown on your card in the MiUPV app.
The group study rooms that can be booked through the MiUPV app are opened with the ‘door opening’ option shown on your MiUPV card. Remember that you will only be able to access the study booth from the time of booking. There is also the possibility of opening the room booth with the physical card, as long as it is previously activated on the device located on the second first floor of the Central Library, next to the lending desk.
The group study rooms of those libraries that are not reserved through the MiUPV app are opened with a key that can be borrowed at the library counter.