Here you can download all files, roms, tools and other for Cubot ONE cell phone.
I have to mentune that this smartphone have the best android build that I have encountered from and chinase maker.
Here are all the files described with download links:
Flash tool driver:
Flashtool SP MDT software
SD update after Stock Firmware to v of firmware 0.4 + manual. Improve CAMERA
New MODEM FIRMWARE. Usr it after stock or v0.4 firmware
ROOTing tool to gain ROOT access of stock firmware.