Check-in and Web Check-in
Where is it not possible for mobile boarding passes to be used?

You can use a mobile boarding card on your smartphone on many airberlin routes.
 

At a few airports, the scanners required to read mobile boarding cards are not available or there are official regulations preventing the use of mobile boarding cards.
 

Using a mobile boarding card is not possible when departing from the following airports:    
 

Airport
Abu Dhabi (AUH)
Antalya (AYT)
Billund (BLL)
Catania (CTA)
Faro (FAO)
Hurghada (HRG)

Kaliningrad (KGD)
Keflavik (Reykjavik) (KEF)
Luxor (LXR)
Mahon (Menorca) (MAH)
Marsa Alam (RMF)
Moskow (DME)
Palermo (PMO)
Phuket (HKT)
Sharm el Sheikh (SSH)
St. Petersburg (LED)
Tel Aviv (TLV)