RK25 OS Image Upgrade SOP
1.2 USB DRIVERS
For successfully upgrading the OS image of your RK25 mobile computer,
be installed in your PC beforehand.
Depending on the operating system environment of your PC, the USB drivers may have
been installed in your PC already.
1.2.1 QUALCOMM USB DRIVER
CHECK WHETHER QUALCOMM USB DRIVER IS INSTALLED IN YOUR PC
1) Shut down your RK25 mobile computer, and then press the
and
Down Key
Power Key
Power Key
2) Connect the RK25 mobile computer with your PC by a micro USB cable.
3) Go to "
Control Panel
"Qualcomm HS-USB QDLoader 9008" under "Ports".
Qualcomm USB driver is installed
8
(from Android Nougat to Android Pie)
of your RK25 mobile computer at the same time.
" → "
Device Manager
User Guide
Volume Up Key
" in your PC to check whether it shows
Qualcomm USB driver is NOT installed
must
USB Drivers
,
Volume
Volume Keys
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