尋求sony m4 e2363 root

不好意思，請教一下

我在這兩個步驟就卡住了
5. run flashtool and chose flash icon, click "fastbood mode" > OK , click "mode>reboot into flashtool mode (via ADB)".wait until finish

6. chose BLU icon wait until finish, unplug the mobile usb from PC and plug with hold Vol- , now chose unlock

出現的錯誤訊息如附圖，可以幫忙解救一下咩?
感激不盡