Hey bro...i think u better upgrade ur CID49 to 52...then flash the phone again with the firmware files for CID52(which meanz u need 2 dwnlod d fw filez again!)...also after cmpletin flashin, apply a custpack by using the custpack optionz of XS...u wil need 2 kno the region nd CDA to select the proper custpack for ur phon!.. :)