Once the printer updates to 676, even replacing the chip with a standard “reset” chip may not work unless the firmware is or patched .
Samsung utilizes a smart chip on the MLT-D101S toner cartridge to monitor usage. Once the printer updates to 676, even replacing
Remove the chip from the toner cartridge or cover it with non-conductive tape . Once the printer updates to 676
Hold the WPS/Print Screen button (above power) for about 10 seconds until the LED flashes once, then release. This shows the Firmware version and Serial Number. use the Firmware Fix (Method 2).
If you just want to print, buy a (Method 1). It is safer and requires no technical skills. If you plan to use this printer for years and want to save money on chips, use the Firmware Fix (Method 2).