Yes, this still works with system version 6.3.4Have a Question? select the new Q&A Taband ask.Watch my [Video] How To Root Kindle Fire 1 with Update 6.3.3 and 6.3.4, using Saferoot***First Install DriversDownload Kindle Fire Utility v0.9.9 from AFH or Mega or XDA see original Kindle Fire Utility v0.9.9 threadVerify MD5:a20011995d115c3b2d66dcc92303031e...Read more