PARD machines usually have multiple versions of firmware. When the product is stable and mass-produced, the firmware used is usually relatively stable and optimal.

In general, it is not recommended to upgrade and modify the firmware. Because, the firmware of each period is the optimal firmware for the product hardware. In addition, there is a risk of damaging the motherboard of the machine when upgrading the firmware.

So, under what circumstances is it recommended to upgrade and modify?

First, the manufacturer officially upgrades and optimizes machine functions, fixes bugs, etc.

Second, because of personal needs, update the language of the machine.

Third, if there is a problem with the machine, the firmware needs to be reinstalled.