Hi, glad to share the iOcean X9 latest firmware.
You may take this ROM flashing tutorial as reference: http://bbs.elephone.hk/thread-1037-1-1.html#.VWgkX_RAU-0
Download link: iOcean X9 Android 5.1 MTK6752 Smartphone Firmware
Passcode: geekbuying.com
Enjoy!