When you are using 1.9.104 ST that will be a custom rom pre-installed by your seller.
So you need to use the QFIL method - via sdfuse you will brick your phone.
You should backup your data because everything will be wiped.
I'm wondering about that fact - where your info come from?
Is it possible that there is a difference between 64GB model and the 128GB one?
In the descriptions at zukmobile.cc you can find UFS2.0 only at 64 GB model...
64GB...
Thank you very much!
1st I tried the patch from this thread a second time with same result
Then using the original patch from RXSW (http://forum.xda-developers.com/z3/development/d6603-23-1-1-28-t3102271) and everything works fine :good: :fingers-crossed: