Do the full flash again with XS++(all 3 files in the same time) and use this files:
MAIN: Downloads - R1KG001_RED52 - W850_R1KG001_MAIN_GENERIC_CY_RED52 - Top Sony Forums
FS: Downloads - R1KG001_RED52 - W850_R1KG001_FS_EUROPE_1_RED52 - Top Sony Forums
CUSTPACK: Top Sony Forums