9008刷机出现Download Fail:FireHose

RROR: It took 10.00000000 seconds to open port. Which is longer than 3.000. This indicates your target is not stable}
Writing log to 'C:\Users\Strong\AppData\Roaming\Qualcomm\QFIL\COMPORT_30\port_trace.txt', might take a minute
Log is 'C:\Users\Strong\AppData\Roaming\Qualcomm\QFIL\COMPORT_30\port_trace.txt'
Download Fail:FireHose Fail:FHLoader Fail:Process fail
Finish Download
请教这个报错怎么解决哈