[Q] AndroidNow HD 7.3 " cant change density " please help topic

first of all S3V3N aweosome work for the ROM, im always flash ur ROM.
i have a question n need some information, in previous version 7.2 i can change the density into 540, but after i flash ur new version 7.3 cant change the density everytime i change to 540 n then reboot no changes, still the same at 640. maybe i miss something, please need ur guidance...thank u very much