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11-11-2020 10:38 PM - edited 11-11-2020 10:40 PM
Hello. I removed the wifi connection and connected my computer to the printer with a USB cable. Then I ran the John341 installer. Nothing happened. The firmware didn't push to the printer. When I re-activated wifi, it immediately went back into the restarting loop. Did you have wifi on when you pushed the install? If so, can you tell me what you did to stop the constant restarting to get the firmware across. Thanks for your help.
11-12-2020 02:37 AM
Ok. For me....the printer could not have any acess to the internet. Very important. So disconnect wifi and/or any ethernet connection. Otherwise the printer will return to the loop. Then I used the USB method to install the old firmware. You have to do all steps. Remember that the printer need to be "shared". Just like it's described in the USB method.
11-14-2020 11:45 AM
I have a LaserJet Pro MFP M281fdw printer also and tried several suggestions posted by the community. Nothing has worked so far. I tried following Method 4 that you described and got as far as Step 3. I haven't used MSDOS commands for nearly 35 years so I'm stuck. The firmware .RFU file is in my Downloads folder, I have my device name, shared my printer, and connected the USB cable. I tried following HP's example of writing the DOS command, but I get syntax error messages or a message saying the specified path or file cannot be found. Can you help?
11-16-2020 02:33 PM
Same problem, keep trying to install the old firmware but get stuck in a loop of 79 errors. A little inconvenient as like billions of other people I am stuck working from home. I feel like a forgotten sock, endlessly tumbling in the dryer of HP releasing bad firmware.
11-17-2020 11:36 AM - edited 11-17-2020 11:42 AM
I factory-reset my printer first and this stopped the boot loop. (If you connect to your wireless network before sending the older firmware, the boot loop with start again.) With the printer reset and connected via USB, I was able to send the firmware using the .exe file that John 341 provided.
Here is a video showing how to reset the printer. The printer shown is a slightly different model, but the process is the same. You'll know if the reset was successful when the printer displays: "permanent storage init"
11-17-2020 03:41 PM
OK I just got mine to work .. turned off WIFI, set printer back to factory settings by putting a thumb on the screen in the lower left hand corner while booting up PRESS ANDHOLD THERE FOR ABOUT A MINUTE, then proceeded to set up printer again from the start with wifi on. WIFI set up with same wifi and password.... and voilà it's printing fine now no error code...phew!!! Good luck everyone!