I can't upgrade the firmware in my Officejet Pro 8600 N911a. My current firmware is CKP1CN1416AR. According to the HP drivers site, the latest firmware is CLP1CN1322CR. I get the update to run and it identifies my printer, but it will not let me select it. I'm using the printer on a wireless network, but I'm trying to run the firmware update via USB. Any help would be appreciated.
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