ilang araw na akong napupuyat search and try pero failed parin.. xperia z ultra po tablet ko d2 s japan (sgp412) model.. 4.4.2 os.. noroot ko gamit kingoroot pati kingroot apk pero hndi mamodify ung system at hndi mabago permission read only parin, hnd mainstall busybox, at hnd din mkpgpush ng app.. niroot ko din via pc gamit root genius ganun prin.. anu po kayadapat kong gawin? wala din yata ito download at recovery mode.. sana maymakatulong.. salamat..