Join Date: Nov 2018
Location: Istanbul, Turkey
Programs: TK Elite Plus,BAEC GGL,ITA Executive, AFKL Gold,QR Gold,HH Diamond,Bonvoy Gold,ALL Gold
Posts: 14,186
Previously I had no issues using mobile boarding passes both on domestic flights out of Antalya with Turkish Airlines, AnadoluJet, SunExpress and Pegasus.
Also, the gate agents could have printed you a physical boarding pass if you have asked for one.
Not sure about how it works for international flights though at Antalya.