s3570 write flash error

[nurulfaiq]

please helpme what can i do for fix this problem

Selected model: S3572
Selected port: COM15 Z3X BOX Serial Port
Selected port speed: 921600
Reconnect battery and connect phone to USB cable
Phone detected
Opening device... OK
Checking device descriptions... OK
Device  description: 04CC 0409
Checking config descriptor... OK
Reading OTP register... OK
OTP register: 473E8100
Reading product ID... OK
Product ID:  0005041100000000
Reading SCROM version... OK
SCROM version: 0x31
Chipset version: 0x48
Sending loader... OK
Start loader... OK
Waiting phone... OK
Opening device... OK
Checking device descriptions... OK
Device  description: 04CC 0409
Checking config descriptor... OK
Reading loader version... OK
Loader version: 7.5.16
Init Flash... OK
Loading flash info... OK
Configure Flash... OK
Erase memory for external loader... OK
Sending external loader... OK
Start external loader... OK
Waiting phone... OK
Opening device... OK
Checking device descriptions... OK
Device  description: 04CC 0409
Checking config descriptor... OK
Reading loader version... OK
Loader version: 7.5.16
Init Flash... OK
Load flash info... OK
Configure Flash... OK OK
Loading PTT file... OK
Reading first block... OK
Erasing first block... OK
Flashing first block... OK
Init bad block... OK
Erasing IMAGE... OK
Erasing LCDACT... OK
Erasing DATA_RW... OK
Erasing DSP... OK
Erasing PAGE... OK
Erasing MAIN... OK
Erasing a... OK
Erasing b... OK
Erasing c... OK
Erasing d... OK
Erasing OTPW... OK
Writing IMAGE... OK
Writing LCDACT... OK
Writing DATA_RW... OK
Writing DSP... error
Done with Samsung Tool v.17.4

[nurulfaiq]

Writing DSP... error

Everybody please explain writing DSP error and how to fix that