Hi there! I try to  update  SM-z9005 to Tizen 2.3 using lthor, but alwayls catch  this error: 

line 328: failed to read signature bytes
line 603: handshake failed
line 922: failed to open port (null)

I try to use Virtual Box with Ubuntu and OpenSUSE and just Ubuntu, that installed as an operation system, but nothing changed. Also I have some bugs in  Tizen 2.2 version on SM-z9005 :
1.  if i try to  play  video file( recorded by the phone or downloaded)   videoplayer crashes. 
2. Microphone doesn’t work, so i haveto use headphones to  speak. 

So, I need your help!