Firmware fixes usually come in a archive file containing two key items: the firmware file ( Fix_Ml1660_V1.01.00.30.fls ) and a USB flashing utility (commonly named usbprns2.exe ).
Ensure you have the basic Samsung ML-1660 print drivers installed on your PC before running the usbprns2.exe application. The utility requires the operating system to recognize the connected hardware interface.
Print a Configuration Report from your printer. Hold down the Stop/Clear (or Print Screen) button for about 4–5 seconds until the status light blinks rapidly, then let go. Look for the "Firmware Version" line. It must explicitly read V1.01.00.30 or lower. Applying a V30 fix to a V34 printer will brick the machine.
You will need:
Connecting the printer via USB (wireless/network flashing is not recommended due to stability risks). Execution: Running a flashing utility (like usbprns2.exe FirmwareDownloader.exe ) that sends the file to the printer. Hardware Modification: Fix Ml1660 V1.01.00.30.fls
After a successful flash, the chip on the toner cartridge must be physically removed or covered with tape to prevent the printer from reading its old data. Risks and Considerations Warranty Voiding:
: Turn off the printer. Hold the Cancel/Stop button and turn the printer on. Release the button when the lights begin to flash.
Watch the light indicator: It will flash slowly, then turn solid green. Release the button immediately when it begins blinking rapidly (roughly 4 to 8 seconds). Locate the printed sheet and record these specific lines: Must explicitly confirm V1.01.00.30 .
What (Windows version) is your computer running? Firmware fixes usually come in a archive file
Once you fix the V1.01.00.30.fls issue, follow these best practices:
of your printer?
button (above the power button) for about 10–15 seconds until the LED flashes, then release. Toner Low Override : Some users report that holding the
Since I don’t have access to that specific file’s origin or user history, here’s a you can adapt based on your actual experience. If you plan to post this on a driver/firmware site or forum, fill in the details where noted. Print a Configuration Report from your printer
The motherboard bootloader is corrupted. You must desolder the flash memory chip and program it manually using an external .
Disclaimer: Firmware flashing involves risks. Ensure a stable power supply. Modifying firmware may void the warranty. If you'd like, I can:
md5sum "Ml1660 V1.01.00.30.fls" # Expected: verify against official hash from Samsung release notes