Should Factory Reset Restore Everything? Not Always.

One request from an OEM customer recently caught our attention while integrating the XTIOT XT206H3.

The scanner was configured to use USB Virtual COM (V-COM) as its default communication interface.

Then the customer asked an interesting question:

"If an operator performs a factory reset by scanning the reset barcode, will the scanner still remain in USB V-COM mode?"

At first glance, it sounds like a small firmware detail.

But for OEM manufacturers, it can have a significant impact.

Many embedded systems communicate with the scanner through a predefined interface. If a factory reset changes the communication mode back to another default, the host software may no longer detect the scanner correctly.

A device that is physically working can suddenly appear to be "offline" simply because the communication interface has changed.

That's why some OEM projects require critical communication settings to remain unchanged even after a factory reset.

This helps reduce service calls, avoids unnecessary field reconfiguration, and ensures that maintenance personnel can safely restore other settings without affecting host communication.

We've seen this requirement in self-service kiosks, industrial equipment, and access control systems where long-term reliability is more important than restoring every factory parameter.

For embedded OEM products, should a factory reset restore absolutely everything, or should key communication settings remain protected?

I'd be interested to hear how other engineers approach this design decision.

#EmbeddedSystems #BarcodeScanner #USB #VirtualCOM #Firmware #OEM #SystemIntegration #XT206H3 #XTIOT