- Downgrade to .534 with flashtool (I got [nut]version)
- Install latest Dual Recovery (z1 beta .123)
- Flash Prerooted firmware through recovery (Monx for example)
- Flash Stripped Kernel with flashtool (Nut .757 for example)
No need to backup TA then?
It look so simple, but it seems very complicated to me on the other hand.
Thanks for answering.