Download Android Jelly Bean 4.2.2 stock firmware for Star N9389 smartphone from here or here. Download another Star firmware from here.
Archive: firmware for Star N9389
Firmware: N9389-20131029_e2001_v89_gq2002s / N9389-20131029_e2001_v89_gq2002sc
Archive: firmware for Star N9389
Firmware: N9389-20131029_e2001_v89_gq2002s / N9389-20131029_e2001_v89_gq2002sc
Model: Star N9389 smartphone
Image file size: 712 MB
Platform: Mediatek MT6589Image file size: 712 MB