Modifying firmware bypasses manufacturer design constraints and comes with explicit downsides: Risk/Consequence
A modification file with a .hd extension (e.g., FIX_Z7B6B..._SCX3405_V3.00.01.11.hd ).
Fix Generator V1.1 Samsung SCX-3405 is a third-party firmware modification tool designed to bypass the printer's toner cartridge chip requirements fix generator v 1 1 samsung scx 3405
Once this firmware is installed, the printer permanently ignores the toner chip counter. This allows you to refill the cartridge and use it indefinitely without needing a new chip. How to Use Fix Generator v1.1 (Step-by-Step)
Power interruptions, loose USB cables, or inputting an incorrect serial/CRUM number during generation can corrupt the bootloader, rendering the printer permanently inoperable. How to Use Fix Generator v1
: Use the fix generator to create your custom .hd file. Drag and drop this file onto the usbprns2.exe loader tool provided in the firmware package.
Once the progress bar reaches 100%, the printer will automatically reboot itself. You will hear the mechanical components initialize, and the motors spin. Step 6: Isolating the Toner Chip Once the progress bar reaches 100%, the printer
Connect your Samsung SCX-3405 directly to your PC using a high-quality . Do not use a USB hub or extension.
Once a technician generates the custom firmware file (usually ending in a .hd extension), it must be forced into the printer using a standard USB interface. Prerequisites A Windows PC (Windows 7, 10, or 11). A high-quality, short USB A-to-B printer cable.
: A black command window will appear and close. The printer will show an "updating" status. Do not disconnect power during this process (approx. 1.5 minutes) as it could damage the device.
Before attempting to use this tool, you must understand the risks:
