Before update your firmware, make sure your barcode printer is linked to your PC. Turn on the printer and running printer utility.
1.Click Download tab.
2.Select product to printer.
3.Select the model name.
4.Select the interface.
5.Select Target Language.
6.Select firmware update.
7.Click Browse to find the .bin file.
8.Click Download to send the new firmware. Printer is updating firmware.
9.Waiting the LED status as below.

A, CP, OS, OX Series Power and Ready is blinking the same time
G, R, X Series Cancel is blinking

10.Turn off the printer.
11.Keep press Feed until it is printing selftest. Check the firmware version.
12.Reboot barcode printer.