: Before applying any fix, you must print two reports to find your Serial Number , CRUM number , and Firmware Version .

If your printer is connected to the internet, it might auto-update again. To prevent this:

Extract the downloaded fix file into a folder on your desktop.

A firmware reset (also known as a fix firmware or chip reset) allows your Samsung ML-2160 or ML-2165 series printer to print without requiring the smart chips installed on the toner cartridges. This modification helps bypass the "Toner Exhausted" or "Replace Toner" errors, allowing you to refill your existing cartridge or use budget-friendly third-party toner replacements. Why Perform a Firmware Reset?

Place a small piece of dark electrical tape or masking tape completely over these gold contacts. This forces the printer to look strictly at its newly modified internal firmware rather than reading data from a physical chip.

[Connect Printer via USB] ──> [Boot into Download Mode] ──> [Drag Firmware File onto usbprns2.exe] ──> [Wait for Auto-Reboot] Step 1: Prepare the Environment

This happens if the power was cut or the wrong serial number was used. You may need to look into an original firmware restoration or a hardware EEPROM reset using a soldering iron (fuser chip reprogrammer).

Cover the chip contacts completely with a piece of non-conductive electrical tape or scotch tape. Alternatively, you can physically remove the chip. Reinsert the cartridge and close the cover. Turn the printer on.

Before proceeding, understand the following: