Software Flashing Instructions for Primo-C1
1. Double click Setup.exe to install the driver.
2. Double click ResearchDownload.exe and open the flashing tool.
3. Click the first button, select the correct .pac file and confirm.
4. Click the third button to get ready to start.
5. Connect the handset to PC with USB data cable, Long press volume down key and insert the battery. Now it starts to install the software.
6. When it shows Passed in green, the installation is completed.