Okay i tried flashing it with these files:
W850_R1KG001_MAIN_GENERIC_CY_RED52
W850_R1KG001_FS_EUROPE_2_RED52

and got the following log

12:20:09| ~~~~~~~~~~ Custpack information ~~~~~~~~~~
12:20:09| Custpack: MEDITERR (CDA102568/4) (W850)
12:20:09| Generic(non-branded) custpack: Yes
12:20:09| Allowed languages: en, el, sq, ro, bg,
12:20:09| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12:20:14|
12:20:14| Sending db2020_cid01_prodid_p3j.bin...
12:20:14| Applet ID: 070129 0950 NGUCXC1250330_DB2020_PRODUCTIONIDLOADER_P3J
12:20:14| This is a PRODUCTION_ID loader
12:20:14|
12:20:14| Sending db2020_mem_patcher_cid52_r2a006.bin...
12:20:15| Applet ID: 061205 1523 HANCXC9876543210_DB2020_MEM_PATCHER_R2A006 0
12:20:15| This is a MEM_PATCHER loader
12:20:15|
12:20:15| Sending db2020_cid52red_flash_r2a005.bin...
12:20:15| Applet ID: 061201 1314 HANCXC1329129_DB2020_FLASHLOADER_R2A005
12:20:15| This is a FLASH loader
12:20:15| Now flashing firmware main...
12:20:15| Flashing c:\users\larissa\desktop\flash files 2\w850_r1kg001_main_generic_cy_red52.mbn
12:20:15| Header type: BABE
12:20:15| 460 flashblocks
12:24:01| Finishing flash
12:24:01| Done flashing
12:24:01| Now flashing filesystem...
12:24:01| Flashing c:\users\larissa\desktop\flash files 2\w850_r1kg001_fs_europe_2_red52.fbn
12:24:01| Header type: BABE
12:24:01| 237 flashblocks
12:25:56| Finishing flash
12:25:57| Done flashing
12:25:57|
12:25:57| Sending db2020_red52_cs_r3a009.bin...
12:25:59| Applet ID: 070410 1557 HANCXC1250562_DB2020_CSLOADER_R3A009
12:25:59| This is a CHIPSELECT loader
12:25:59| Activating loader...
12:25:59| Activating GDFS...
12:26:12| This loader is UNLOCKED
12:26:12| Success! CS-loader has been unlocked!
12:26:12| Uploading customization files to phone...
12:26:12| Uploading /tpa/preset/custom/CONTENT_DOWNLOAD_HOOK.itm...
12:26:12| Activating filesystem
12:26:19| Creating directory /tpa
12:26:19| Creating directory /tpa/preset
12:26:20| Creating directory /tpa/preset/custom
12:26:20| Deleting file /tpa/preset/custom/CONTENT_DOWNLOAD_HOOK.itm
12:26:20| Deleted...OK!
12:26:20| Uploading file /tpa/preset/custom/CONTENT_DOWNLOAD_HOOK.itm
12:26:20| Done uploading
12:26:20| Uploading /tpa/preset/custom/FM_PICTURES_HOOK_3.itm...
12:26:20| Creating directory /tpa
12:26:20| Creating directory /tpa/preset
12:26:20| Creating directory /tpa/preset/custom
12:26:20| Deleting file /tpa/preset/custom/FM_PICTURES_HOOK_3.itm
12:26:20| Deleted...OK!
12:26:20| Uploading file /tpa/preset/custom/FM_PICTURES_HOOK_3.itm
12:26:20| Done uploading
12:26:20| Uploading /tpa/preset/custom/FM_SOUNDS_HOOK_3.itm...
12:26:20| Creating directory /tpa
12:26:20| Creating directory /tpa/preset
12:26:20| Creating directory /tpa/preset/custom
12:26:20| Deleting file /tpa/preset/custom/FM_SOUNDS_HOOK_3.itm
12:26:20| Deleted...OK!
12:26:20| Uploading file /tpa/preset/custom/FM_SOUNDS_HOOK_3.itm
12:26:20| Done uploading
12:26:20| Uploading /tpa/preset/custom/FM_THEMES_HOOK_3.itm...
12:26:20| Creating directory /tpa
12:26:20| Creating directory /tpa/preset
12:26:20| Creating directory /tpa/preset/custom
12:26:20| Deleting file /tpa/preset/custom/FM_THEMES_HOOK_3.itm
12:26:20| Deleted...OK!
12:26:20| Uploading file /tpa/preset/custom/FM_THEMES_HOOK_3.itm
12:26:20| Done uploading
12:26:20| Uploading /tpa/preset/custom/FM_VIDEOS_HOOK_3.itm...
12:26:20| Creating directory /tpa
12:26:21| Creating directory /tpa/preset
12:26:21| Creating directory /tpa/preset/custom
12:26:21| Deleting file /tpa/preset/custom/FM_VIDEOS_HOOK_3.itm
12:26:21| Deleted...OK!
12:26:21| Uploading file /tpa/preset/custom/FM_VIDEOS_HOOK_3.itm
12:26:21| Done uploading
12:26:21| Uploading /tpa/preset/custom/GAMES_HOOK_3.itm...
12:26:21| Creating directory /tpa
12:26:21| Creating directory /tpa/preset
12:26:21| Creating directory /tpa/preset/custom
12:26:21| Deleting file /tpa/preset/custom/GAMES_HOOK_3.itm
12:26:21| Deleted...OK!
12:26:21| Uploading file /tpa/preset/custom/GAMES_HOOK_3.itm
12:26:22| Done uploading
12:26:22| Uploading /tpa/preset/custom/MEDIA_PLAYER_HOOK_3.itm...
12:26:22| Creating directory /tpa
12:26:22| Creating directory /tpa/preset
12:26:22| Creating directory /tpa/preset/custom
12:26:22| Deleting file /tpa/preset/custom/MEDIA_PLAYER_HOOK_3.itm
12:26:22| Deleted...OK!
12:26:22| Uploading file /tpa/preset/custom/MEDIA_PLAYER_HOOK_3.itm
12:26:22| Done uploading
12:26:22| Uploading /tpa/preset/custom/ORG_APPLICATIONS_HOOK_3.itm...
12:26:22| Creating directory /tpa
12:26:22| Creating directory /tpa/preset
12:26:22| Creating directory /tpa/preset/custom
12:26:22| Deleting file /tpa/preset/custom/ORG_APPLICATIONS_HOOK_3.itm
12:26:22| Deleted...OK!
12:26:22| Uploading file /tpa/preset/custom/ORG_APPLICATIONS_HOOK_3.itm
12:26:22| Done uploading
12:26:22| Uploading /tpa/preset/custom/SETT_RINGTONE_HOOK_1.itm...
12:26:22| Creating directory /tpa
12:26:22| Creating directory /tpa/preset
12:26:22| Creating directory /tpa/preset/custom
12:26:22| Deleting file /tpa/preset/custom/SETT_RINGTONE_HOOK_1.itm
12:26:22| Deleted...OK!
12:26:22| Uploading file /tpa/preset/custom/SETT_RINGTONE_HOOK_1.itm
12:26:22| Done uploading
12:26:22| Uploading /tpa/preset/custom/SETT_SCREENSAVER_HOOK_1.itm...
12:26:22| Creating directory /tpa
12:26:22| Creating directory /tpa/preset
12:26:22| Creating directory /tpa/preset/custom
12:26:22| Deleting file /tpa/preset/custom/SETT_SCREENSAVER_HOOK_1.itm
12:26:22| Deleted...OK!
12:26:22| Uploading file /tpa/preset/custom/SETT_SCREENSAVER_HOOK_1.itm
12:26:22| Done uploading
12:26:22| Uploading /tpa/preset/custom/SETT_STARTSHOW_HOOK_1.itm...
12:26:22| Creating directory /tpa
12:26:22| Creating directory /tpa/preset
12:26:22| Creating directory /tpa/preset/custom
12:26:22| Deleting file /tpa/preset/custom/SETT_STARTSHOW_HOOK_1.itm
12:26:22| Deleted...OK!
12:26:22| Uploading file /tpa/preset/custom/SETT_STARTSHOW_HOOK_1.itm
12:26:23| Done uploading
12:26:23| Uploading /tpa/preset/custom/SETT_WALLPAPER_HOOK_1.itm...
12:26:23| Creating directory /tpa
12:26:23| Creating directory /tpa/preset
12:26:23| Creating directory /tpa/preset/custom
12:26:23| Deleting file /tpa/preset/custom/SETT_WALLPAPER_HOOK_1.itm
12:26:23| Deleted...OK!
12:26:23| Uploading file /tpa/preset/custom/SETT_WALLPAPER_HOOK_1.itm
12:26:23| Done uploading
12:26:23| Uploading /tpa/preset/custom/VIDEO_PLAYER_HOOK_1.itm...
12:26:23| Creating directory /tpa
12:26:23| Creating directory /tpa/preset
12:26:23| Creating directory /tpa/preset/custom
12:26:23| Deleting file /tpa/preset/custom/VIDEO_PLAYER_HOOK_1.itm
12:26:23| Deleted...OK!
12:26:23| Uploading file /tpa/preset/custom/VIDEO_PLAYER_HOOK_1.itm
12:26:23| Done uploading
12:26:23| Uploading /tpa/preset/custom/Customize.xml...
12:26:23| Creating directory /tpa
12:26:23| Creating directory /tpa/preset
12:26:23| Creating directory /tpa/preset/custom
12:26:23| Deleting file /tpa/preset/custom/Customize.xml
12:26:23| Deleted...OK!
12:26:23| Uploading file /tpa/preset/custom/Customize.xml
12:26:23| Done uploading
12:26:23| Uploading /tpa/preset/custom/preloaded_config.xml...
12:26:23| Creating directory /tpa
12:26:23| Creating directory /tpa/preset
12:26:23| Creating directory /tpa/preset/custom
12:26:23| Deleting file /tpa/preset/custom/preloaded_config.xml
12:26:23| Deleted...OK!
12:26:23| Uploading file /tpa/preset/custom/preloaded_config.xml
12:26:25| Done uploading
12:26:25| Uploading /files_to_upload to phone...
12:26:25| Sending shutdown command to phone...
12:26:25| Customizing was SUCCESSFUL!
12:26:25| Disconnecting phone...
12:26:25| You may now unplug your phone.
12:26:25| Flashing was successful

But when i turned the phone on the same white blinking white screen happens!

Is this still a flashing problem or is it something internal? I was really careful putting the new flex ribbon in.. could there have been a problem with that?