K750i GDFS unlock

Hi. After flashing my K750 to W800 I flashed GDFS to W800 (tat was dum) without backuping it :( now I have bad GDFS. What shoud I do now? Can I fix it by myself?

14:57:32| Baseband ID: 8040
14:57:32| Protocol Version: 3.1
14:57:32|
14:57:32| Sending db2010_cid00_prodid_p3l.bin...
14:57:32| Applet ID: 061113 1250 ALUCXC125872_COMPACTPRODUCTION_ID_LOADER P3L
14:57:32| This is a PRODUCTION_ID loader
14:57:32| Activating GDFS...
14:57:32| Warning: IMEI name does not match GDFS name (IMEI:K750 GDFS:W800)
14:57:32| ...using IMEI name
14:57:32|
14:57:32| Sending db2010_cid36red_flash_r2ab.bin...
14:57:33| Applet ID: 050425 0904 MATCXC1326738_COMPACTFLASHLOADER R2AB
14:57:33| This is a FLASH loader
14:57:33|
14:57:33| Profiling SEMC phone...
14:57:33| Platform: DB2010
14:57:33| OTP CID: 36
14:57:33| EROM CID: 36
14:57:33| EROM Color: Red
14:57:33| IMEI: 35785000xxxxxx
14:57:33| Phone ID: K750
14:57:33| Region: EUROPE_1
14:57:33| CDA: CDA102286/8 R2A
14:57:33| Firmware Version: R1AA008
14:57:33| EROM: n/a
14:57:33| Ready for operation!

And one more thing. I flashed GDFS to W800, but cant flash back to K750

there is no free way to repair that, so only way is for a repairer/technician to get it fix

Thanks :) so I don`t even try :D I can`t sleep becouse of it!