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- Re: MFP M277 dw suddenly showing supply memory error after ...

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08-18-2016 04:01 PM
I downloaded the older firmware directly to my computer. Hooked the printer up to the computer using USB. Selected "Allow Downgrade" on the printer. Suppesedly installed downgraded firmware, but everytime I check firmware, it is showing the new firmware still. Please tell me what I am doing wrong????
08-18-2016 05:19 PM
All I can tell you is I followed Macca's instructions exactly. No USB connections, no anything. I used the HP download and install assistant that is on the website. It pushed the firmware to the printer without any intereference on my part. Here are his instructions again.
select the firmware option, currently there are two listed
select
HP LaserJet Pro Series Firmware Update Utility
Version:20150716Apr 21, 2016
HP's Terms of Use 20150716
follow the install by using the HP download and install assistant