Need help please

Hello
I have Doogee X6
Iflashed it then the phone does not Display
I tried two other firmwares , then i tried to restore its original dump
the phone won’t be flashed more and this is the error code :
[DA_ERROR] : DRAM Configure failed!
ErroCode : 0xC40B0000
EMICFG_RET_FAILED
CodeDefine : DA_DEVICE_NOT_FOUND
Boot Erro
please help