Coming from the Samsung Galaxy SII, I knew what the various PDA and CSC codes represented. However, the structure seems to have changed for the S4. For instance, the recent Germany firmware release is... PDA: I9505XXUBMEA I9505 = Model no: XX = Language pack for de,en,es,fr,hu,it,nl,pt(cs,da,el,fi,no,pl,sl,sv,tr, I'm guessing??? UB = ???? MEA = Build no: CSC: I9505OXABMEA I9505 = Model no: OXA = Open Europe code... I'm guessing??? B = ??? MEA = Build no: Can somebody throw me a bone and help me out here as I would like the definitive answers to these codes so that I can help others.