After following this guide, the Samsung M2070FW printed its test page cleanly. The dreaded 1497/bagz501 was gone. The HD error had vanished — cleared by the firmware rewrite.
For official drivers and standard firmware updates (non-reset), you can visit the HP Support page for Samsung M2070 series . Fix 1497bagz501 Hd Samsung M2070fw Firmware.epubl
On some models: Hold + Copy until the display shows “USB UPDATE”. After following this guide, the Samsung M2070FW printed