Oukitel U22 – V17 20170609 stock rom
w178d-oq-s30-33gu-hd-128g16g-bom3-N_OUKITEL_U22_V17_20170609
Technical Details :
ro.build.id=NRD90M
ro.build.display.id=OUKITEL_U22_V17_20170609
ro.build.version.incremental=1492154497
ro.build.version.sdk=24
ro.build.version.release=7.0
ro.build.version.security_patch=2017-05-05
ro.build.date=2017 06 09 14:30:08 CST
ro.build.date.utc=1496989808
ro.build.flavor=full_hct6580_weg_n-user
ro.product.model=U22
ro.product.brand=OUKITEL
ro.board.platform=mt6580
TWRP 3.1.0 at the next link :
http://www.chinaphonearena.com/forum/Thread-ROM-Oukitel-U22-TWRP-and-Stock-Rom?pid=65836#pid65836