so far i know you must download the firmware
1. Main W880_R8BA024_MAIN_GENERIC_AI_RED53 and
2. FS W880_R8BA024_FS_EUROPE_3_RED53 for fallowing language: English - Danish - Dutch - French - German.
u have to add this file in the software (like davinci or some other) and flash the phone
i hope you have understood.