Hold the recovery button -> Plug in the USB OTG cable -> Plug in the DC power. Summary Checklist Did you install DriverAssistant ? Is the device in Maskrom/Loader mode? Are you using a USB 2.0 port? Is the cable a high-quality data cable ?
Use a high-quality USB-A to USB-A (or USB-C) cable. Many cheap cables are "power only" and lack the data lines needed for flashing. Rear Ports:
Hold the recovery button -> Plug in the USB OTG cable -> Plug in the DC power. Summary Checklist Did you install DriverAssistant ? Is the device in Maskrom/Loader mode? Are you using a USB 2.0 port? Is the cable a high-quality data cable ?
Use a high-quality USB-A to USB-A (or USB-C) cable. Many cheap cables are "power only" and lack the data lines needed for flashing. Rear Ports: rkdevtool no devices found