hi,
i have a sony ericsson w300 dead
i downloaded an all-in one pack, cid31, and flashed it,
but in middle of the flashing, it stopped, and says

IMEI:35207901462883
CID (hex):0031
CID (dec):49
PAF:01
Mfrid0:89
Devid0:7E

Sending MCU...
Send MCU error: 0003

help me please

data transmission error. try to reinstall the software again or better yet get in touch with a local tech and let them fix it for you. your phone is not dead not unless you would encounter the dreaded for blinks...