1.) use phoneXS 2[1].10 Alpha 5. Press flash chose file (w810_p3k_dcu.49R.ssw) of your pc. Install it
2.) Now connect phone with far go to /tpa/preset/system/desktop/flash/... delete/insert your chose files. When you done in left up press .. few times then pc ask you "do you wanna change" or something press yes
3.) Now go to phoneXS 2[1].10 Alpha 5. Press flash chose file (W810_R4EA031_MAIN_GENERIC_HN_RED49.mbn) of your pc and write it to phone.
w810_p3k_dcu.49R.ssw and
W810_R4EA031_MAIN_GENERIC_HN_RED49.mbn
files must be for your phone model (lime mine) and your software like.
Srry for bad english ;)