le e sacado la bateria mil veces y el proceso termino correctamente
te dejo el log:
Welcome to SEtool2 ( LITE edition ) v 1.11
supported DB2010/DB2012 CID49/50/51/52, DB2020 CID49/51/52
Loaded 51 flash descriptors

if you like LITE edition - please visit www.setool.net and buy FULL.

ChipID:9900,EMP protocol:0301
PHONE IS RED RETAIL PRODUCT
FLASH CID detected:52
Speed:921600
Flash ID check:2019
Flash props sent ok
OTP LOCKED:1 CID:51 PAF:1 IMEI:35536301193719 CERT:RED
FLASH CID:52 COLOR:RED

Model:W850i
Brand:Sony Ericsson
MAPP CXC article: R1JG001 prgCXC1250200_GENERIC_CY
MAPP CXC version: R1JG001
Language Package:EUROPE_1
CDA article: CDA102568/10
CDA version: R5A
Default article: cxc1250489
Default version: R1JG001

Operator: 000-00

Elapsed:4 secs.
Will backup GDFS now.
ChipID:9900,EMP protocol:0301
PHONE IS RED RETAIL PRODUCT
FLASH CID detected:52
Speed:921600
OTP LOCKED:1 CID:51 PAF:1 IMEI:35536301193719 CERT:RED
FLASH CID:52 COLOR:RED
LDR:061201 1314 HANCXC1329129_DB2020_FLASHLOADER_R2A005
Flash ID check:2019
Flash props sent ok
CSloader version:
070410 1557 HANCXC1250562_DB2020_CSLOADER_R3A009
loader startup: executed
loader GDFS startup: executed
stated number of vars:1414
Found:720 variables
Found:581 variables
Found:113 variables
GDFS read all done, GDFS_35536301193719.BIN written
Phone detached
Elapsed:28 secs.
ChipID:9900,EMP protocol:0301
PHONE IS RED RETAIL PRODUCT
FLASH CID detected:52
Speed:921600
OTP LOCKED:1 CID:51 PAF:1 IMEI:35536301193719 CERT:RED
FLASH CID:52 COLOR:RED
LDR:061201 1314 HANCXC1329129_DB2020_FLASHLOADER_R2A005
Flash ID check:2019
Flash props sent ok
writing C:\Documents and Settings\Rayden\Escritorio\movil\W850_R1KG001_MAIN _GENERIC_RED52.mbn
CURRENT FLASH FILE CID:52
SSW uses complete hash, hash len is:9200
Will flash 460 blocks...
Send superblock command NAK
Elapsed:85 secs.