problem with G530h MTK6572 error with miracle

first i mad a backup from the phone and when im trying to flash the phone with miracle gives this error
Definition Applied
1. Power Off Phone , Remove Battery, Insert Battery Back
2. Insert USB cable. In some cases Required Hold BootKey
3. Use Miracle Boot Key In cases Boot key not Find
4. Battery Should be Charged more then 50%
Waiting for USB Port…
Set PreLoader USB VCOM Port (COM20)
Please Hold "ON" to connect with the phone…
Connected to Phone.
CPU: MT6572 SW:0000 Ver: CA01
Downloading Boot8 …
EMMC Size: 0x00E2C00000
Flash Type: EMMC
INT/EXT RAM Size: 0x0+0x0
W ERR 00: A5
>>W ERR 01: 00000000_000C4D00

and when i tried to flash the backup file also gives this error :
>>the File is BAD, Be NOT Writed to the Phone

please help guyz