系统升级不能继续，请大师指点

升级失败原因是signaure verification failed
有这几个选项我应该选哪个继续？
apply sdcard:update.zip
wipe data/factory reset
wipe cache partition
install zip from sdcard
back up and restore
mouns and storage
advanced
我选择advanced之后有一个提示是/tmp/ recover.log was copied to /sdcard/ clockwor/tmp/recovery.log. Please open ROM Manager to report the issue.