8620 Firmware Downgrade New - Hp Officejet Pro

Downgrading the firmware on your HP OfficeJet Pro 8620 is the primary method for bypassing "Dynamic Security" locks that prevent the use of third-party or non-HP ink cartridges. While HP officially discourages this and frequently claims it is not possible, users continue to successfully roll back firmware to regain compatibility with affordable ink alternatives. Performance Review: Is It Worth It?

Ink Cost Savings: The main benefit is the ability to use third-party cartridges, which can be significantly cheaper than genuine HP ink.

Risks: Downgrading carries a small risk of "bricking" the printer (making it non-functional) if the process is interrupted. You also lose the latest security patches and bug fixes provided by HP.

Success Rate: High, provided you have the correct version of the older firmware file (e.g., version FDP1CN1416AR is a common stable target). Step-by-Step Downgrade Guide

To successfully downgrade, you must first prepare the printer to accept an older file and then manually push that file to the machine. 1. Prepare Your Printer Settings

You must manually enable downgrades in the printer's hidden menu:

Navigate to the Manage Updates menu on your printer's touchscreen. Select Allow Downgrade and set it to Yes.

Ensure Allow Updates is also set to Yes for the duration of this process. 2. Download and Run the Firmware File

Since HP does not provide old firmware on its official site, you must find these files via community backups or third-party ink retailers like Ink Hub or YB Toner.

Connect your printer to your computer via USB cable for the most stable connection. Run the downloaded firmware installer (.exe or .dmg).

Select your HP OfficeJet Pro 8620 from the list and click Update or Send Firmware.

Wait 3–5 minutes for the printer to restart; the screen may change colors during this time. 3. Disable Future Automatic Updates (Crucial)

Once the downgrade is finished, you must immediately disable updates to prevent the printer from automatically re-installing the version that blocks your ink.

On the printer control panel, go to Settings > Printer Maintenance > Update Printer. Set Check Automatically to Off and Allow Updates to No. Troubleshooting Common Errors

Printer Not Detected: If the installer cannot find your printer, try rebooting both your router and the printer, or ensure you are using a direct USB connection rather than Wi-Fi.

"Update Failed": If the software fails, close the program, restart the printer, and try running the installer again. Ensure the print queue is completely empty before starting.

"Non-HP Chip" Message Persists: If you still see the error after a downgrade, try a Semi-Full Reset by pressing the back button 4-5 times to access the hidden Support Menu.

Downgrading the HP OfficeJet Pro 8620 firmware is a common method to bypass "Dynamic Security" locks that prevent the use of third-party ink cartridges. Because HP often removes older firmware from its official site, you will typically need to source the downgrade file from community archives or third-party providers. HP Support Community Step 1: Disable Automatic Updates

Before starting, you must stop the printer from immediately re-updating once the downgrade is complete. On the Printer Panel (gear icon) > Printer Maintenance Update the Printer Printer Update Options : "Do Not Check" or "Off".

: When asked "Do you want to turn on Printer Updates?", select Via Web Browser : Enter your printer's IP address

into a browser to access the Embedded Web Server (EWS). Go to Printer Updates and disable them there.

HP OfficeJet Pro 8620 Firmware Downgrade: Guide for 2026 Downgrading the firmware on your HP OfficeJet Pro 8620 is often necessary when a recent update prevents the use of more affordable third-party or compatible ink cartridges. While HP frequently releases updates that include "dynamic security" to block non-HP chips, rolling back to an older version can restore compatibility and save on printing costs. Why Downgrade Your HP 8620 Firmware?

The primary reason for a firmware downgrade is to bypass the "Non-HP Chip Detected" or "Cartridge Problem" errors that appear after an automatic update. These updates often:

Block third-party ink cartridges that were previously working. Force the use of more expensive genuine HP cartridges.

Prevent the printer from accurately displaying ink levels for refilled cartridges. Step-by-Step Downgrade Process

To successfully downgrade, you must first prepare the printer to accept an older version of software. 1. Enable Downgrading on the Printer

Before running any software, you must unlock the printer's ability to accept a rollback: On the printer control panel, go to Setup > Tools. Navigate to Printer Maintenance or Update Printer. Look for Manage Updates. Select Allow Downgrade and set it to Yes.

Also ensure Allow Updates is set to Yes temporarily so the firmware file can be sent. 2. Download and Run the Older Firmware

Since HP no longer hosts older firmware versions on their official support site, you will need to find a reliable third-party source or use a previously saved backup.

Connect your printer via USB cable for the most stable connection during the process.

Open the downloaded firmware package (typically an .exe file for Windows).

Select your HP OfficeJet Pro 8620 from the list of detected printers. Click Update or Send Firmware. hp officejet pro 8620 firmware downgrade new

The printer's display will show an update in progress; do not turn off the printer during this time. 3. Disable Automatic Updates Post-Downgrade

To prevent the printer from automatically re-updating to the version that blocks your ink, you must turn off the auto-update feature: HP Printer Firmware Downgrade Guide: Download Link Included CompAndSave

HP® releases a new firmware update to remedy their recent ... - LD Products

Q4: Is there a “new” firmware downgrade without a USB drive?

As of March 2025, no. The remote downgrade exploit via telnet (used in 2022-2023) is patched. The USB recovery method is the only active vector.

Conclusion: Your HP OfficeJet Pro 8620 Is Worth Saving

The HP OfficeJet Pro 8620 remains one of the most reliable all-in-one printers ever made – when it’s running the right firmware. The new downgrade method detailed above gives you back control over your device and your printing costs.

Don’t let a surprise update turn your printer into a brick. Whether you’re a home office user, a small business owner, or a student on a budget, downgrading to FDP32A allows you to print without DRM-style restrictions.

Final checklist:

If you found this guide helpful, please share it with other HP OfficeJet Pro 8620 owners. Together, we can keep our hardware functional – not forced into obsolescence.

Last updated: May 2026. This procedure is for informational purposes only. Perform at your own risk. Always test with a single, non-essential cartridge first.

To downgrade the firmware on your HP Officejet Pro 8620 , you generally need to manually install an older firmware file (such as version FDP1CN1416AR

) to bypass "Non-HP Chip Detected" errors caused by "Dynamic Security" updates Step 1: Preparation Disable Automatic Updates : On the printer's control panel, navigate to Printer Maintenance Update the Printer Printer Update Options and select Do Not Check Connection : It is highly recommended to use a

connection between your computer and printer to prevent interruptions during the flash. Clear the Queue

: Ensure there are no pending print jobs in your computer's print queue. CompAndSave Step 2: Download Older Firmware

Official HP support pages typically only host the latest firmware. You may need to source older versions like FDP1CN1416AR from reputable third-party sites or community forums like Verify Model : Ensure the firmware is specifically for the (it often shares files with the 8610 or 8630). Step 3: Perform the Downgrade HP Printer Firmware Downgrade Guide - CompAndSave

To downgrade your HP OfficeJet Pro 8620 firmware—often done to resolve "cartridge problem" or "non-HP chip detected" errors—you must first enable the printer to accept older versions and then manually send the firmware file from a computer. 1. Enable Firmware Downgrade on the Printer

Before attempting to install old software, you must unlock the printer's update settings via its control panel:

On the printer display, swipe down and select Setup (gear icon). Go to Printer Maintenance > Update the Printer. Select Printer Update Options and choose Allow Downgrade. Set Allow Updates to Yes.

Set Check for Updates to Do Not Check to prevent the printer from automatically re-updating later. 2. Perform the Downgrade (Windows)

Since HP does not officially host older firmware, you must use a backed-up or third-party version of the .exe or .rfu file (typically version 1910A or earlier).

Connect via USB: Use a USB cable for the most stable connection.

Run the Firmware Package: Double-click the downloaded firmware file on your computer.

Select Your Printer: When the update window opens, select your HP OfficeJet Pro 8620 from the dropdown menu.

Send Firmware: Click Update or Send Firmware. The process usually takes 2–5 minutes.

Restart: The printer will reboot once finished. If prompted about "non-genuine" cartridges, select OK or Continue to bypass the warning. Alternative: Factory Reset

If you cannot find the firmware file, a factory reset may restore the base firmware version, though this is not always successful on newer models. Path: Setup > Tools > Restore Factory Defaults > Yes.

Note: HP officially discourages downgrading as it removes security patches and may void warranties. Some newer firmware versions (like FDP1CN2022AR) are specifically designed to block downgrading.

For users of the HP OfficeJet Pro 8620, recent "Dynamic Security" firmware updates can often block the use of affordable, third-party or remanufactured ink cartridges, resulting in "Non-HP Chip Detected" or "Cartridge Problem" errors. Downgrading your firmware to an older version (like 1910A or FDP1CN1416AR) can restore compatibility. Understanding the "Dynamic Security" Issue

HP uses Dynamic Security to ensure printers only work with cartridges featuring original HP chips. While HP has released specific "security bypass" firmware for certain models to remove this feature, finding the correct version on the official site can be difficult. Downgrading is the most reliable way to bypass these restrictions. Step 1: Preparation & Pre-Downgrade Settings

Before attempting a downgrade, you must prepare the printer to accept an older firmware version.

To downgrade the firmware on your HP OfficeJet Pro 8620 , typically to resolve "Non-HP Chip Detected" or "Older Generation Cartridge" errors, you must bypass HP's standard update tools. While HP officially states that downgrading is not possible, third-party methods often work. HP Support Community Step 1: Enable Downgrading on the Printer

Before attempting to send a file, you must ensure the printer will accept it: On the printer control panel, go to Printer Maintenance Update Printer Manage Updates Allow Downgrade Allow Updates is also set to (temporarily). HP Support Community Step 2: Locate Older Firmware Files Downgrading the firmware on your HP OfficeJet Pro

HP does not host old firmware on their official support site; they only provide the newest versions. You will need to find a third-party source for older firmware (e.g., version FDP1CN1416AR or similar). Common sources include third-party ink retailers like or community forums like Step 3: Perform the Downgrade (Windows) Connect your printer directly to your computer via Run the downloaded firmware Select your HP OfficeJet Pro 8620 from the list of detected printers.

. The printer screen may turn light green or display a progress bar; do not turn it off during this time (usually 1–5 minutes). If you get a "Not Applicable" error, some users extract the , open the EnterpriseDU.ini file, and change VerifyDownloadID before running it. CompAndSave Step 4: Disable Automatic Updates

Once the downgrade is successful, immediately disable auto-updates to prevent the printer from re-installing the problematic firmware: HP Printer Firmware Downgrade Guide - CompAndSave

To downgrade the firmware on an HP OfficeJet Pro 8620, you generally need to manually run an older .exe or .dmg firmware installer from a computer connected to the printer via USB or network. Important Warning

Downgrading firmware is not officially supported by HP. It can lead to the following risks:

Bricking the device: The printer may become permanently unusable if the process is interrupted.

Security risks: Older firmware often lacks critical security patches found in newer versions.

Voided warranty: Unauthorized firmware changes can void your manufacturer warranty. Typical Downgrade Steps

Locate the Firmware File: You must find a specific older version (e.g., version 1400 series or earlier) from a trusted third-party archive or community forum, as the Official HP Support Site typically only provides the most recent version.

Disable "Printer Update": Before attempting a downgrade, ensure the printer won't immediately re-update. On the printer control panel, go to Setup > Printer Maintenance > Update the Printer > Printer Update Options and select Do Not Check.

Run the Installer: Connect your printer to your PC via USB. Run the downloaded firmware utility on your computer. If the utility finds the printer, it may allow you to "Update" even if the version is older.

Confirm on Printer: Watch the printer's display for a progress bar. Do not turn off the printer until it restarts completely. Alternative: Factory Reset

If you are trying to resolve a software glitch without the risks of a manual downgrade, a Factory Reset may help:

On the printer display, go to Setup > Tools > Restore Factory Defaults and confirm by selecting Yes. Managing Future Updates

If your goal is to prevent the printer from blocking third-party ink cartridges (often the reason for downgrading), you can disable automatic updates using the HP Smart App by navigating to Printer Update > Auto Update > Off.

Do you need help finding a specific version number of the firmware for a particular feature?

how to perform hard reset for HP Officejet Pro 8620 - 6262280

The printer sat in the corner of the home office like a dormant volcano. It was an HP OfficeJet Pro 8620, a machine built for a small business but pressed into servitude for a single freelance writer named Elias. For three years, it had been a faithful soldier. It scanned contracts, printed invoices, and whirred with a satisfying, mechanical competence.

Then, the notification appeared.

It started as a small pop-up on Elias’s screen: “Firmware Update Available: Enhanced Security and Performance.” Elias, distracted by a deadline, clicked "Install."

That was the beginning of the nightmare.

The next morning, Elias went to print a shipping label. The printer’s touchscreen glowed with a bright, patronizing message: “Cartridge Problem. The indicated cartridges are not intended for use in this printer.”

Elias stared. He had been using the same third-party ink brand for years. It was affordable, high-yield, and worked perfectly. He knew, with a sinking feeling in his gut, exactly what had happened. The "Enhanced Security" update was actually a digital gatekeeper—a "dynamic security" feature designed to brick any ink cartridge that didn't have an HP-branded microchip.

He checked his supplies. He had six backup cartridges, all third-party. All useless. The printer was holding his workflow hostage. A new set of genuine HP ink cost nearly as much as he had paid for the printer itself.

He called support. The agent was polite but robotic. "Sir, the update ensures the integrity of your printing experience. We recommend genuine HP cartridges."

"So, you broke my printer on purpose?" Elias asked.

"Sir, the printer is working as intended."

Elias hung up. He looked at the 8620. It hummed softly, an innocent-looking slab of plastic that had just turned into a traitor.

That night, fueled by coffee and indignation, Elias went to war. He wasn't a hacker, but he knew how to use Google. He typed the incantation into the search bar: "hp officejet pro 8620 firmware downgrade new."

The search results were a digital underground railroad. He found forum threads on obscure tech sites, filled with voices of the similarly disenfranchised. He read through pages of code, warnings, and success stories. He learned about the "Mighty JVM" reset codes and the hidden menus HP didn't tell consumers about.

He found a link to an older firmware version—version 1914A, released before the lockout protocols were tightened. It was an "old" version, but to Elias, it was a time machine. It was a way to return his printer to a time before it became greedy. Conclusion: Your HP OfficeJet Pro 8620 Is Worth

He downloaded the file. It was a simple .rfu file—Remote Firmware Update.

"Now comes the hard part," he muttered.

The guides were specific. The printer wouldn't just accept an older operating system over Wi-Fi; it was too smart for that. It tried to protect its new "enhanced" self. He had to force-feed it the old software.

He dug out a dusty USB cable from a drawer of tangled wires. He connected the laptop directly to the printer. The machine sat silent, the "Cartridge Error" still flashing on the screen. He needed to get it into a state where it would listen.

He found the 'Service Menu' code. On the touchscreen, he tapped the back arrow four times, his fingers moving in a secret rhythm. A menu popped up, stark and industrial, hidden from the average user. He navigated to the 'Firmware' section.

But there was a catch. The printer was currently in an error state because of the ink. It wouldn't accept a print job, and it wouldn't normally accept a USB firmware flash while screaming about the ink.

He read a desperate tip from a user named InkRebel88: “Take the cartridges out. It’ll go to a 'Missing Cartridge' screen. That’s okay. That screen allows the firmware flash. Do it while the bay is empty.”

Elias popped the latch. The carriage slid to the center. He ripped out the offending third

Downgrading the HP OfficeJet Pro 8620 Go to product viewer dialog for this item.

firmware is a common method for bypassing "Dynamic Security" or "Non-HP Chip Detected" errors that block third-party ink cartridges. Quick Summary

Current Status (April 2026): HP does not officially support downgrading. Newer firmware (like FDP1CN2022AR ) is often locked to prevent reverting.

Primary Risk: Interrupting a firmware flash can permanently "brick" (disable) the printer. Prerequisite: You must find an older version (e.g., version or

) from a third-party source or backup, as HP has removed these from their official support pages. 🛠️ Step-by-Step Downgrade Process

If you have an older firmware file (typically a .exe for Windows or a .ful / .rfu file), follow these steps:

Prepare the Connection: Connect your printer to your computer via a USB cable for stability; avoid Wi-Fi for firmware tasks. Enable "Allow Downgrade":

On the printer screen, go to Settings > Printer Maintenance > Update Printer. Select Manage Updates and set Allow Downgrade to Yes. Run the Older Firmware:

Windows: Double-click the downloaded firmware .exe and select your printer from the dropdown menu. Click Update.

Mac/Terminal: If you have an .rfu file, you can send it via Terminal using the command: nc -w 100 [Printer_IP] 9100 < firmware_file.rfu.

Wait for the Reboot: The printer screen may turn green or display a progress bar. Do not turn it off. It will print a status report once complete. 🔒 Disabling Future Updates

To prevent the printer from automatically re-installing the problematic firmware:

On the Printer: Go to Settings > Printer Maintenance > Update Printer > Printer Update Options and select Do Not Check.

On your PC: When installing HP software, choose Customize and uncheck HP Update.

HP OfficeJet 8620 previous firmware update... - HP Community

Trapped by the Update: A Deep Dive into the HP OfficeJet Pro 8620 Firmware Downgrade Nightmare

If you own an HP OfficeJet Pro 8620, you likely bought it for one reason: cheap, high-volume printing. For years, this workhorse was the king of the SOHO (Small Office/Home Office) market. But recently, a quiet war has been raging in printer forums. The battle cry? "How do I force a firmware downgrade on my 8620?"

Let’s rip the bandage off. HP doesn't want you to downgrade. In fact, as of late 2024 and into 2025, they have made it incredibly difficult. But why is there such a high demand for "old" software? And is there a "new" trick to rolling it back?

Here is the current state of play for the HP OfficeJet Pro 8620.

Step 5: Block Future Updates (Crucial)

After successful downgrade, the printer will auto-update within 24 hours if connected to the internet.

  1. On the printer:
    Setup → Printer Maintenance → Update Printer → Printer Update Options → Disable "Allow Updates".
  2. On your router (optional but recommended):
    Block these domains:
    • hpfirmware.hp.com
    • hpservice.hp.com
    • bds.hp.com

Part 6: Frequently Asked Questions (New 2025 Context)

Final Warning

If the downgrade fails mid-process, the printer can become a permanent brick (no display, no USB detection). The only fix would be replacing the main logic board (~$80 on eBay).

Method 3: Fixing Cartridge Issues Without Downgrading

Most users seek a downgrade because their printer suddenly rejects non-HP ink after an update (the "Cartridge Protection" feature).

Instead of downgrading, try disabling this feature (if the menu allows it):

  1. On the printer control panel, touch Setup (wrench icon).
  2. Go to Printer Maintenance.
  3. Look for HP Cartridge Protection.
  4. Select Disable HP Cartridge Protection.
  5. Restart the printer.

Note: If this option is grayed out or missing, it means the current firmware has locked this setting. In this case, you would need to buy original HP cartridges or attempt the downgrade above.