This update will not come via OTA automatically. You need manually install this update in order to use it. Using release candidate firmware you still will be able to update your device via OTA, if you want to continue using automatic stable updates.
for Cube X3 Family v 0.2.7 (X3_0.2.7 & X3_ota_0.2.7)
1. Fixed audio clicks in AV port 2.Added mouse settings to TvSettings 3. Added experimental ability use mouse as touch input 4. Video Picture Settings. Disabled system automatic frame rate function 5. Video Picture Settings. Fixed bugs of hue setting 6. Video Picture Settings. Removed sharpness setting 7. Video Picture Settings. Added setting for disabling all video effects and optimizations 8. Fixed some buttons in Chrome 9.Samba Server. Changed storage names 10. Fixed crash of Bluetooth settings when device connected 11. Added support ext4, ntfs, exfat for SD cards in recovery mode 12. Added support ext4 for usb storages in recovery mode 13. Added support of multiple storages (partitions) in recovery mode if use System Update application 14. Fixed automatic update error with expanded storage 15. Fixed some crashes of System Update application