lumia 520 boot repai error riff box

[mintu4200]

Open serial port...OK
Connecting to the RIFF Box...OK
Firmware Version: 1.41 (RIFFBOX1), JTAG Manager Version: 1.65
Selected Resurrector: [Nokia Lumia 520 V1.0.5149.18900]

Connecting to the dead body...OK
Detected dead body ID: 0x207D00E1 - CORRECT!
Set I/O Voltage reads as 1.82V, TCK Frequency is 400 kHz

Resurrection sequence started.
Establish communication with the phone...OK
Initializing internal hardware configuration...OK
Uploading resurrector data into memory...OK
Starting communication with resurrector...OK

Detected an Initialized FLASH1 Chip, ID: 0x0015/0x0100 (M8G2YC, 0x0001D2000000 Bytes = 7.28 GB)
Detected an Initialized FLASH2 Chip, ID: 0x0015/0x0100 (M8G2YC, 0x000000400000 Bytes = 4.00 MB)

Selected Resurrection Data for the eMMC Chip with Capacity = 7.28GB

Flashing the dead body...
ERROR: DCC Loader has reported Error Code = 0x51 (0x000000). Trying to recover...OK
ERROR: DCC Loader has reported Error Code = 0x51 (0x000000). Trying to recover...OK
ERROR: DCC Loader has reported Error Code = 0x51 (0x000000). Trying to recover...OK
ERROR: Stopped due to multiple communication errors. Terminating at 0x000000000000

DEAR RIFF TEAM HELP ME FOR THIS PROBLEM.........URGENT