Primo C3 3G Driver, Flashtool & Firmware download Link:
Download
Primo C3 (3G) Firmware upgrade instruction:
4. Press and hold volume down key till the progress start
Download
Primo C3 (3G) Firmware upgrade instruction:
- Open flashtool
- Select scatter file
- Click Firmware upgrade
4. Press and hold volume down key till the progress start
5. Connect USB cable
6. Connect Battery
7. Wait till download complete.