Hi, here glad to share this firmware of X3 TVBOX.
This ROM is for testing only. If you have any questions using it, please contact to us.
ROM download: X3 4K Android 4.4 Allwinner H3 TVBOX Firmware H3_CX-968_v1.0 Beta
Flash guide please refer to ROM and Upgrade Guide for CX-X3 4K Android 4.4 Allwinner H3 TVBOX 190452 150919