請問使用s1tool testpoint(TP)解鎖的問題?

用s1tool testpoint(TP)解鎖
但是s1tool 會顯示qcReceivePacket: can't get packet start.
請問一下為什麼會這樣?


Welcome to S1 tool.
2012-10-27 16:09:05 That is small and crippled subset of SETOOL2 service tool.
2012-10-27 16:09:21
2012-10-27 16:09:21 DETACH USB CABLE FROM PHONE
2012-10-27 16:09:21 REMOVE BATTERY FROM PHONE
2012-10-27 16:09:21 ATTACH TESTPOINT
2012-10-27 16:09:21 PRESS "READY", THEN ATTACH USB CABLE TO PHONE
2012-10-27 16:09:21
2012-10-27 16:09:41 PROCESSING ...
2012-10-27 16:09:42 REMOVE TESTPOINT NOW, THEN PRESS "READY"
2012-10-27 16:09:42
2012-10-27 16:09:47 qcReceivePacket: can't get packet start. <<<<<<<<<<<<<<<<<
2012-10-27 16:09:47 Elapsed:25 secs.