My X650 stoped in welcome screen

Question

1)i have installed the ROM ETEN_X650_WM6.1_V03_S384_B20273 pdavietsince then it canT start(i didnt know that was unofficial2) i flashed the devise with wrong ROm X500 0436 Card instalation.i probably mess with the DAT files upo.k.Now the phone when i try to boot from sd my screen becomes white and stoped there.inside of the X600 Test System(OS IMG) writes "MBR not Found."and something more: in the B&E Info at the SW VERSION writes:"BOOTER:BOOTER_X600_02_LB_03_08LOADER:LOADER_LB_03_05UDBDL:USBDL_X500_03_LB_01_19IPL:IPL_X650_01_LB_01_24KNIGHT:KNIGHT_X650_02_LB_01_20OS:ETEN_X650_VER_A42_USA_030_0384"THAT'S IT