For ID E6N5:

ROM Download: Part1, Part2, Part3, Part4
Version: Android5.1_V1.04_20160325 & Win10_20160225

For ID E6N6:

ROM Download: Part1, Part2, Part3, Part4
Version: Android5.1_V1.04_20160325 & Win10_20160225

Attention matters:
1, please download all packages and unzip by WINRAR tool.   (Unzipping password: geekbuying.com)
2, before unzipping, exit the anti-virus software, or some program files will maybe deleted wrongly.
3, when unzipping, please select all packages together, and unzip synchronously. Don’t unzip one by one, it will cause some files lost.
4, please apply it to the corresponding ID.
5, please read the flash guides carefully before operating.