Are you using a or original iProg unit, and which Windows version are you currently running? Programmer is not connected (V1.9.0) - REVELTRONICS

Understanding the root cause saves hours of guesswork. Here are the usual suspects:

Using a multimeter:

For detailed teardowns and specific resistor values, community guides on OBDII365 provide visual walkthroughs for hardware repairs. Programmer is not connected (V1.9.0) - REVELTRONICS

If your iProg is running "hot" while failing to connect, the issue is likely more than just a driver error.

When your iProg programmer shows a "Programmer not connected"

Never attempt to update a clone iProg online. It will likely "brick" the device or change the serial number, making it incompatible with your scripts.

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