I got this error while using semc tool V8

Switch phone ON
Get phone info
Flash CID: 24
Phone KEY: –onšîNGöÃöïCBç†or*’.Ljwââ^‹k’ïk’gÏÏÏ
gjgÔ’W‚‘OO—Ïo›*/’§RÂçbãB¯R›BÚ›sã
ERROR: 305011

does anyone have a fix for this im using the cable
CODE
http://cgi.ebay.co.uk/Cruiser-Unlocking-Cables-For-Sony-Ericsson-K750i-K700_W0QQitemZ140326154369QQcmdZViewItemQQptZUK_MobilePhones_MobilePhoneAccesori
es_MobilePhoneDataCables_JN?hash=item20ac173081&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1683|240%3A1318|301%3A1|293%3A1|294%3A50