Scanfob Brand barcode scanners (Scanfob 2002/2005/2005/3002i/4000)— Hold down BOTH the large and small buttons on the Scanfob simultaneously for 30 seconds. You will see a red LED and hear a single-tone beep upon completion.
Scanfob BB2 scanners (Scanfob Ultra-BB2/NFC-BB2) — Hold down the power button for six seconds. If your device is still unresponsive, let the battery drain completely and then charge it and try again.
Scanfob qID Mini — Hold down BOTH buttons simultaneously for six seconds, then release.