How To Upgrade HP LaserJet M600, 601, 602 SSM Firmware
1 Turn the product on. The Message error 99.09.67 disk not bootable appear on the control panel display. Press the OK button to continue.
2 Wait for the preboot menu to appear on the control panel display, and then press the down arrow button to scroll to administrator. press the ok button to select it
3 Press the down arrow button to scroll to download . Press the OK button to select it.
4 Press the down arrow button to scroll to USB thumbdrive. Press the ok button to select it.
5 Several .bdl files might be listed, Press the down arrow button to scroll to the firmware upgrade file that you downloaded earlier. Press the ok button to select it. ( IF no .bdl files are listed, try saving the file to a different USB storage accessory)
6 Wait while the file transfer. When the transfer is complete, the message COMPLETE appears on the screen
7 Turn the product off, remove the USB storage accessory, and then turn the product on. Wait for several minutes while the product initializes.
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