Free Download Stock Firmware for your Lenovo VIBE X Smartphone directly from official Lenovo servers. You can use this Stock ROM Firmware to flash or unbrick your Lenovo X Smartphone. Or you can unroot your device using this Stock ROM for Lenovo X smartphone.
Download and put this Lenovo X Stock ROM zip file at the root of your SD card. And then go to Recovery menu and apply updates from SD card. Click here for tutorial.
File name: VIBEUI_V2.0_1507_7.124.1_ST_S960_WC79.zip
File size: 876 MB