Primo D5 official firmware & flashtool download link:
D5_4.4.2_1
USB Download Instruction :
1). Insert USB cable into PC, and run Flash Tool.exe
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2). Click Scatter-loading button and then select corresponding scatter file
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3). Choose Firmware upgrade option
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3) Click the Dlownlaod option and then connect the phone to PC
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4). It will show downlaod process and "OK" after SW is finished. Yon can see the picture as follow
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D5_4.4.2_1
USB Download Instruction :
1). Insert USB cable into PC, and run Flash Tool.exe
2). Click Scatter-loading button and then select corresponding scatter file
3). Choose Firmware upgrade option
3) Click the Dlownlaod option and then connect the phone to PC
4). It will show downlaod process and "OK" after SW is finished. Yon can see the picture as follow
