Here is the newest stock firmware for NEO X7, which release by MINIX team, here is the changelog:
Change log:
1.) Fixed Play Store app. search compatibility issue; (Location access fix)
2.) Enhanced Wi-Fi stability and throughput;
3.) Added Location access settings;
4.) Added Accessibility settings (Large text, Mouse Wheel Zoom Settings…etc.);
5.) Fixed video stuttering problem;
Firmware Download Link
some more information about this firmware:
1 still don’t come with rooted, you need to root by yourself;
2 Android 4.2.2 OS;
3 come with 720 Kernel, and once this firmware is tested and steady, minix will work on the 1080P kernel;
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I have posted a rooted version here:
http://www.arctablet.com/blog/forum/rockchip-rk3188-android-mini-pc/rom-minix-neo-x7-android-4-2-2-custom-root-firmware-version-005-20130911