Open Com Port Handle [top] | Qfil Failed To

A device in 9008 mode draws more current than in normal operation (the PMIC is in a raw state). Many USB ports—especially front-panel ports, hubs, or laptop ports—cannot supply stable voltage.

If the error occurs after "Switch to EDL," it may be a Sahara protocol failure. qfil failed to open com port handle

Windows might be restricting QFIL's access to hardware ports. A device in 9008 mode draws more current

Hold the Shift key while clicking in the Windows Start Menu. queries the device signature (Sahara protocol)

Windows COM ports are shared memory with a gun . Only one application can have an open handle at a time. QFIL opens the port, queries the device signature (Sahara protocol), and expects an immediate response.