. It is a signal sent between the Odin software on a PC and the Samsung device's bootloader to terminate the active communication session. Repair Wiki Flashing Context: When Odin finishes transferring partition data (such as files), it sends an
If Odin hangs on "rqt_close" or "Close Serial Port," it often indicates a communication failure during the final handshake, which can be caused by faulty USB cables or drivers. Common Causes for "rqt_close" Hanging
Under standard ROS operation, an rqt window can be closed by: odin rqtclose
: Poor data transmission over an unstable USB port or a damaged third-party cable can cause packet corruption. The phone reads this corruption as a security breach and cuts the connection. Step-by-Step Fixes for the RQT_CLOSE Error
If your computer cannot properly interpret the data coming from the phone, it drops the connection. Common Causes for "rqt_close" Hanging Under standard ROS
The firmware binary version must be equal to or higher than the binary version currently installed on your phone. You cannot downgrade. Step 5: Run Odin as Administrator and Disable Antivirus
In Odin, load the .tar file into the slot (or the designated user data slot if instructed by your specific guide). Step 5: Switch USB Hardware and Re-install Drivers The firmware binary version must be equal to
rosnode kill /rqt_gui_py_node_xxxx
Using an incompatible version of Odin for newer devices (e.g., using Odin v3.12 for a Galaxy S24). Repair Wiki Standard Odin Workflow
Open and toggle OEM Unlocking to the enabled position.