@airfoil you must use: Downloads - R4EA031_RED49 - Top Sony Forums

W810_R4ED001_FS_S_ASIA_LEVAN_RED49
W810_CDA102555_110_R2A_Generic_S_ASIA_LEVAN (Download here)
W810_R4EA031_MAIN_GENERIC_HN_RED49

First flash File System
Then make customize on File System with W810_CDA102555_110_R2A_Generic_S_ASIA_LEVAN
And finaly flash Main.