Change the to a lower, unused number (ideally COM1, COM2, COM3, or COM4 ).
Use a USB 2.0 port instead of a USB 3.0 (blue) port. If on a laptop, try a powered USB hub. 3. Solving Driver Issues (The Main Cause)
If you are seeing this error, work through these solutions in order: Check USB Connection : Use the original cable. Try a USB 2.0 port instead of USB 3.0 (blue). Driver Verification Device Manager
Plug the iProg into the USB port and watch the Device Manager list refresh. iprog programmer not connected link
Connect the device directly to your computer's motherboard ports (rear ports on a desktop) rather than an unpowered external hub.
Switch between USB 2.0 and USB 3.0 ports. Older iProg clones often perform more stably when plugged into a native USB 2.0 port.
Select , then navigate to the Drivers folder located inside your main iProg software directory. Change the to a lower, unused number (ideally
Look for or Universal Serial Bus controllers .
In some cases, the issue is physical, such as a poor connection between the two main circuit boards inside the iPROG case. This can happen during shipping and might cause the device to be intermittently detected or not detected at all.
: Some iProg+ clones require internal hardware fixes to resolve "Port Errors". This may involve replacing specific resistors (like the MC3406 current sense resistors) on the mainboard to stabilize voltage. Driver Verification Device Manager Plug the iProg into
For automotive locksmiths and electronics technicians, the iPROG (often referred to as the iPROG Plus or original iPROG) is an indispensable tool for reading and writing EEPROM and microcontroller data. However, few things are as frustrating as sitting down for a critical job, connecting your programmer, and being greeted by the dreaded or "Link Error" message.
Damaged cables, faulty USB ports, or poor internal soldering.