At the moment, unfortunately, it is impossible to set the root in this model .. Apart from my poor knowledge in this matter. I used the only thread closest to this model (straight from the Russian forum) and almost something sparked .. I booted the image and a quite familiar menu appeared with the option to upload a superuser, but unfortunately this menu freezes, because at that time the phone starts in the background, wakes up shela coating or whatever .. It took me quite a long time to figure out how to unfreeze this screen
The author mentions something about the bag, that you need to make a backup partition and it is not non-critical, um, for me it is, because it is difficult to get more scarce info.
Edit. I solved the problem using the files of the Russian to which you gave me the link. However, you had to use root-Kingo root.apk (temporary) and run the RASH application immediately, then choose to flash the recovery.img (TWRP) file located on the SD card. This is the last ARCHIVE link. Then superusera.zip is installed from the recovery shell (fast boot TWRP)
The system has been permanently set with root privileges. It is a very resistant phone to this type of action, besides, android 5.1 likes to purr and storm on some applications installed with root requirements. Eg Xploid, the mount folder .. I don't know if it's not about creating this reserve partition, which I have no idea
a is mentioned by the author. I do not recommend this phone
