To create a fix firmware you need to send the data of your printer:
1. Exact printer model
2. Firmware version
3. Machine Serial Number
4. CRUM Number of Toner chip
To check printer reports (in order not to make a mistake in the data) we recommend use the free program Printer Reports by ORPYS
It has the ability to save reports, you can send this report to us
Instruction (Manual) for program firmware
1. Connect printer to computer and extract the archive with firmware
2. Enter printer into Download Mode (forced mode)
- Turn printer OFF (by button [POWER])
- Press button [STOP] and press button [POWER]
- And waiting in display of printer message [Press Stop to download mode]
- Quickly unpress all button and second press button [Stop]
- Printer will show message [Wait Image]
3. Run download_2.bat or drag and drop file P_NU_XXXXXXXXXXXXXXX_Laser_407_V4.82.00.XX.hd on usbprns2.exe
- Wait for the printer to done programming (1-2 minutes) and then it will reboot itself.
- After the firmware, you need to glue tape of toner chip and not allow other chips
4. Done, the firmware is finished.
P/S: After, we recommend disconnecting CRUM connectors from the board
Instruction (Manual) for program original firmware
1. Enter printer into Download Mode
2. Download and extract the archive with original firmware
3. Drag and drop file Laser_407nk_V4.82.00.xx.hd on usbprns2.exe
Original firmware You can download in this Page
Enter Download Mode [forced mode]
- With the printer turned off, press and hold the [Stop] button then [Power] ,
- As soon as the message [Press Stop to download mode] appears on the display, release all the buttons and press the [Stop] button again
- [Wait Image] should appear on the printer display
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