Nice Soldbuch.
His training unit, Gren Ers Btl 260 was indeed based in Prague.
After his basic training in Prague, he followed a NCO candidate course in a NCO school in Freiberg and became a Gefreiter RUB (RUB = Reserve Unteroffizier Bewerber - candidate reserve sergeant).
In November '44 he joins his combat outfit 13/GR331 (a MG company), in December he turns in his rifle for a pistol and a MG cleaning kit so we can presume that he was a MG gunner.
GR331 was part of the 167 Volksgrenadier Division, they saw action in Slovakia, in Januari '45 he spend time in hospital to recover from frostbite in Pilsen (Czechoslovakia).
After he recovered his unit was on the westernfront part of the 7 Army in the Eifel where they were destroyed in March '45.
I presume that he was taken POW in the Eifel region.
Cheers,
Peter