Virtual machine software (VMware, VirtualBox) that might automatically capture USB inputs. Summary Checklist
If RKDevTool shows "No Devices Found," it is usually due to missing drivers, an incorrect connection, or the device not being in the correct boot mode (Maskrom/Loader) 1. Install or Reset Rockchip Drivers The most common cause is a missing or corrupted driver. Driver Assistant : Download and run the Rockchip DriverAssistant Uninstall Driver first to clear any old or incorrect drivers, then click Install Driver to fresh install. Check Device Manager
You can also use the tab → “Enter MaskROM” if the device is already detected elsewhere.
Download the official package (usually bundled with RKDevTool or available via Rockchip development communities). Extract the ZIP file.
| Step | Action | |------|--------| | ✅ | Device in MaskROM/Loader mode | | ✅ | Rockchip driver installed (DriverAssitant) | | ✅ | Driver manually assigned in Device Manager | | ✅ | USB 2.0 port, good data cable | | ✅ | RKDevTool run as admin | | ✅ | No conflicting drivers (Zadig/ADB) | rkdevtool no devices found
If software methods fail, shorting the to ground (or the NAND data pin ) during power-on forces the SoC into MaskROM. This is the “unbrickable” fallback — but risky if you short the wrong pin.
RKDevTool "No Devices Found" Error: Troubleshooting and Solutions
If you are using a desktop PC, plug the cable into the rear I/O ports directly attached to the motherboard. Front-panel USB ports and external USB hubs often cause data drops.
If the above steps do not resolve the issue, try the following advanced troubleshooting steps: Driver Assistant : Download and run the Rockchip
Before diving into the solution, let's briefly understand what rkdevtool is. Rkdevtool is a popular development tool used for Rockchip-based devices, such as Android TV boxes, single-board computers, and other embedded systems. It allows developers to flash firmware, test hardware, and debug their devices.
SUBSYSTEM=="usb", ATTRidVendor=="2207", MODE="0666"
Right-click DriverInstall.exe and select .
You cannot flash firmware while the device is booted normally. It must be in MaskROM (firmware completely missing/corrupt) or Loader (functional bootloader present) mode. Extract the ZIP file
If you see No Devices Found in RKDevTool, it typically means
RKDevTool only recognizes devices in specific, low-level modes.
The "rkdevtool no devices found" error typically occurs when rkdevtool fails to detect your Rockchip device. This can be caused by:
Always connect your cable directly to the motherboard ports on the back of your desktop PC. USB hubs, front-panel case ports, and extension cables degrade signal synchronization.