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!
+1
+1
+1
+1
This is not the upgrade to android 5.1 but the upgrade to android 4.4 0624-143035
This upgrade fix some problems with the camera