k790 poblemas con el flash

RUNNING v 1.01/UNI
CARD SERIAL 00097689
USBFLASH DRIVER VERSION 02.02.00.05
CFG:000000000000
ChipID:9900,EMP protocol:0301
BOOTROM MODE DETECTED
Speed:921600
FLASH ID: 2019
OTP: LOCKED:1 CID:49 PAF:1 IMEI:35220801110515 CERT:N/A
FLASH CID:53 COLOR:RED

Model (from GDFS):K790a
MAPP CXC article: R1KG001 prgCXC1250477_GENERIC_EV
MAPP CXC version: R1KG001
Language Package: AMERICA_2
CDA article: CDA102535/305
CDA version: R9A
Default article: cxc1250491
Default version: R1KG001
PROVIDER: 334-02
Network LOCKED

RESTORATION FILE NOT PRESENT
"R1KG001_CXC1250477_GENERIC_EV"
YOU MUST PERFORM FULL FLASHING
WHEN "ALTERNATIVE SECURITY BYPASS" ENABLED

Elapsed: 9 secs.
SIGNED MODE (USING SERVER)
CFG:100100000000
ChipID:9900,EMP protocol:0301
BOOTROM MODE DETECTED
Speed:921600
OTP: LOCKED:1 CID:49 PAF:1 IMEI:35220801110515 CERT:N/A
FLASH CID:53 COLOR:RED
PATCH:071120 1355 HANCXC9876543210_DB2020_MEM_PATCHER_R2A012 0
LDR:080108 1810 ESGCXC1329129_DB2020_FLASHLOADER_R2A015
FLASH ID: 2019
writing "C:\Documents and Settings\Esteban\Mis documentos\Setool\FLASHES\K790a\main\R1KG001 CID 53\K790_R1KG001_MAIN_GENERIC_EV_RED53.mbn"
CURRENT FLASH FILE CID:53
SSW uses full hash, hash len is: 9200
Will flash 460 blocks...
llbug: blk write fail. fatal
subblock 006 NAK, [44530000/00010000]
Elapsed: 46 secs.
SIGNED MODE (USING SERVER)

hola amigos tengo este sony ericsson k790a que no prende pero si me lo le la setool, el poblema es este, que le meto el flasch cid 53 y me sale el error ese se lo agredeceria su ayuda ...