hi

i have a w550i cid49 brown firmware is R4CA004

i want to update to R4CB020, i have downloaded the files from topsony

1.W550_R4CB020_FS_EMEA6.bin
2.W550_R4CB020_MAIN_EU_EMEA.bin
3.W550_CDA102426_106_EMEA_6.zip

plz help to flash my phone, i dont wan to get configuration error after flashing