lenov s90-a problem with recovery hung help needed

hello guys
i hope every bady are fine
i have
lenovo s90-a still hung at recovery i use stock rom using QFIL TOOL
but
Sahara Version:0
Start Sending Programmer
Download Fail:System.Exception: Unable to download Flash Programmer using Sahara Protocol

at QC.QMSLPhone.Phone.QPHONEMS_SaharaArmPrgDownload(S tring sFileName)

at QC.SwDownloadDLL.SwDownload.QPHONEMSSaharaDownload ArmPrg(UInt64& version, String armPrgPath)
Download Fail:Sahara FailSahara Fail
Finish Download

Read more: ÇáÑÌÇ ÇáãÓÇÚÏÉ Ýí ÌÇåÒ íÚãá ÑíÓÊÇÑÊ ÇÊæãÇÊíß lenovos90
and i posted many thread at many website no one help me even lenovo support service no help me
any one help thanx aloot

regards