NOKIA X after dead boot repair not flash

first repair boot by atf jtag thin try to flashing always give this error

Code:

Nokia Android Phone Flashing Started

                                                     
======================================================
          Nokia Android Firmware Flasher           
======================================================
                                                     
If the Phone is ALIVE                               
  1. Power On the Phone and Connect it to the USB Port
                                                     
If the Phone is DEAD                                 
  1. Press and Hold the VOLUME DOWN button           
  2. Connect it to the USB Port while still Pressing 
    the VOLUME DOWN button                         
  3. Continue to Press the VOLUME DOWN button for 15 
    more seconds                                   
======================================================
                                                     

Processing QCSBL CONFIG
Initiating File Download...
Start Sending Blocks...
All Blocks Sent: OK
Writing to eMMC...
All Blocks Written: OK
Processing QCSBL
Initiating File Download...
Start Sending Blocks...
All Blocks Sent: OK
Writing to eMMC...
All Blocks Written: OK
Processing MODEM
Initiating File Download...
Start Sending Blocks...

ERROR: Communication Failure!