: Physical wear on the PC's USB port or the phone's charging port can cause intermittent disconnects. Power Fluctuations
Ensure the port setting is unticked if manually selecting a detected port. miracle box unstable comport
: Windows often aggressively puts USB hubs into "Selective Suspend" mode to save power, which can kill a sensitive serial connection instantly. 3. Taming the Unstable Port : Physical wear on the PC's USB port
: An "unstable" port occurs when this handshake is interrupted. The PC sees the device for a microsecond, but the data stream "flickers," causing the software to lose its grip. 2. Why the "Miracle" Sometimes Fails but the data stream "flickers