Flash your phone and How to apply or remove patch using SETool 2 Lite

[hyperion17]

I flash my w850i with setool2lite its the result I get efter flash, but the problem is not resolved the phone is now in white screen 1secs and black screen 5seconds. What's wrong ? who can help me ?

As long as the IR led doesn't blink, your EROM is OK. The problem is the CDA102568/17 (generic France), which don't match with the W850_R1ED001_FS_T_MOB_INT_B_RED52.fbn (English - Hungarian - Croatian - Slovakian). Assuming you're looking for french and arabic languages, you should reflash with :
W850_R1KG001_MAIN_GENERIC_CY_RED52
W850_R1KG001_FS_S_ASIA_LEVAN_RED52 and customize with:
HB1-06_Gen_CDA102568_110_R5A_GENERIC_S_ASIA_LEVAN.