roma191 I ask for this statement:
2. Complete Update:
1) Download the firmware from the site / forum on the phone. Put in the root is not required;
2) go to Settings =>System Update =>Gear in the top right corner of =>Local update =>Select the firmware file =>Push install;
3) Press to restart. After loading we wait until the system of curtain disappears notice "Finalizing system update." Reboot in rekaveri;
4) Select English =>Wipe data and cache =>Wipe cache =>Yes =>Reboot
5) Use;
So far, so smoothly I did not notice the slowdown.