Desire HD 降級刷機的步驟 第四發 2.3.3和2.2用請依照步驟

C:\downgrade-dhd> C:\downgrade-dhd>adb push psneuter /data/local/tmp 2682 KB/s (0 bytes in 557962.000s)

C:\downgrade-dhd>adb shell chmod 777 /data/local/tmp/psneuter

C:\downgrade-dhd>adb shell /data/local/tmp/psneuter

Failed to set prot mask (Inappropriate ioctl for device)

要怎麼做