The only tool for flashing CID53 is JDflasher and you will find here (how to..) Flashing with jdflasher - Top Sony Forums and JDflasher you can download from here Jdflasher CID53 update - Top Sony Forums and finaly firmware for you are:
MAIN - W880_R8BA024_MAIN_GENERIC_AI_RED53
FS - W880_R8BA024_FS_MEDITERR_RED53 and
CUSTPACK - HB1-06_Gen_CDA102568_4_R8A_GENERIC_MEDITERR
because your language is in this files
MEDITERR English - Bulgarian - Greek - Macedonian - Romanian - Albanian




