Open the folder on your Windows PC containing the two downloaded files. Click and hold the modified firmware file ( .hd file).
Requires technical steps like finding the current firmware version and SN/CRUM data. Requirements for Reset
Purpose: Recover corrupted firmware or upgrade/downgrade. Use only manufacturer firmware for your exact model and region.
The printer is likely not in Download Mode, or the USB drivers are corrupted. Re-enter Download Mode and try a different USB port. firmware reset samsung ml 2160 2165 2160w 2165w
Hold the same button for ~15 seconds (until the LED stays solid green).
Choose to restore the printer to out-of-the-box settings. 3. Firmware "FIX" (To Bypass Toner Chips)
A: The printer is in a corrupted state. Use the emergency recovery method in Part 7. Open the folder on your Windows PC containing
Instead of altering the printer, you can buy a replacement MLT-D101S chip online, peel off the old chip on the cartridge, and stick the new one on. This resets the page counter to 1,500 pages but must be repeated every time you refill. 3. Permanent Fix Firmware (The Focus of This Guide)
A: Use a free Windows virtual machine (VirtualBox + Windows 10 trial). Pass through the USB printer to the VM, then follow the Windows steps.
Cover the chip on the toner cartridge with tape (or remove it entirely). Reinsert the cartridge. Step 3: Apply the Firmware Re-enter Download Mode and try a different USB port
Turn the printer on. The status LED should now shine a solid, reassuring green, indicating the machine is ready to print indefinitely. Troubleshooting Common Errors The Printer Status Light is Still Red
If the power cut out during Step 4, the printer may not turn on at all. In this scenario, the internal flash chip on the main formatter board must be desoldered and reprogrammed using an external hardware EEPROM programmer (like a CH341A programmer), or the formatter board must be entirely replaced. The computer says "USB Device Not Recognized" Try using a shorter USB cable (under 1.5 meters).
Hold the same button again for about 15 seconds until the LED stays green, then release.