iProg is most stable on . While it can run on Windows 10 and 11, many users find that the "Not Connected" error occurs more frequently on 64-bit systems due to driver signature enforcement.

: The programmer likely lacks a power supply or is physically damaged.

Once you fix the connection, prevent it from recurring:

Frustration curdled into something colder—suspicion.

Open . If the device appears as "Unknown Device," the driver is faulty.