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If a warning triangle appears, right-click and select .
Do not leave EEPROM or OBD adapters attached to the iProg while booting up the software. To help narrow down the solution, tell me: What Windows version are you using? Is this an original tool or a clone device? What does Device Manager show when you plug it in?
In , right-click your iProg COM port and select Properties . Go to the Port Settings tab and click Advanced .
If you are trying to run V89 software on a clone device and get a "Not Connected" message, try downgrading to V87 or V84 . Many clone mainboards are hard-locked to older firmware versions and will refuse to link with newer software interfaces. iprog programmer not connected link
If you have tried the software, driver, and OS steps and the link status remains disconnected, check whether the indicator lights on your hardware turn on when plugged in. If there are no physical LEDs lit up on the unit, the device likely has a blown internal fuse or a damaged power module that requires a hardware replacement.
: Ensure the device is connected to a stable 5V USB port . For desktop PCs, use the rear ports directly on the motherboard rather than front panel ports or unpowered USB hubs.
Most iProg software versions are hardcoded to work with a specific serial (e.g., SN1, SN35, SN45). If your hardware SN doesn't match what the software expects, it will refuse to "link." If a warning triangle appears, right-click and select
If you have tried the steps above and your device still outputs a connection link error, your clone circuit board likely has a manufacturing defect. Clone factories frequently use incorrect resistor arrays that alter the board's electrical resistance. The 10k/4.7k Resistor Modification
5. Check Device Power and Internal Hardware (For Clone Units)
: Ensure you are running the software as an Administrator. You can access the Options -> General menu in iProg to verify basic settings, though the "Not Connected" error usually prevents these scripts from running at all. Status LED Guide Is this an original tool or a clone device
Right-click on the iprog.exe desktop shortcut or main executable file. Select . Go to the Compatibility tab. Check the box for Run this program as an administrator . Click Apply and OK . Hardware Defect: The Solder Joint and Component Check
If you see a yellow exclamation mark ⚠️ next to "iProg" or "FT232R USB UART", the driver is missing or broken.
If you see a yellow exclamation mark or "Unknown Device," the driver is missing.
Which you are currently running? Is your iProg an original unit or a clone ?
The iProg+ pro programmer is a highly versatile tool for automotive electronics, used widely for mileage correction, airbag resetting, EEPROM reading, and key programming. However, one of the most frustrating issues users face is the error.