Why BIOS Settings Cannot Be Retained?

BIOS (Basic Input/Output System) is the computer’s basic input and output system. It is responsible for loading hardware drivers when the computer starts and providing basic input and output functions to the operating system. As a special computer, the point-of-sale terminal can also optimize the performance of the point-of-sale terminal by adjusting the hardware settings in BIOS. But sometimes, users may encounter the problem of not being able to retain BIOS settings after making changes to the point-of-sale terminal. Sunany summarizes several common reasons behind this problem and provides some solutions.

Causes
1. The CMOS battery powers the memory that stores BIOS settings when the point-of-sale terminal is turned off. But if the battery is low or dead, the BIOS will revert to its default settings every time the point-of-sale terminal is restarted.
2. If the user exits directly without saving, the BIOS settings will not retain their changes.
3. Many modern systems are equipped with security features that can limit changes to BIOS settings.
4. An outdated BIOS can cause various problems, including problems with saving settings.
5. Physical problems with the motherboard or other hardware components can also prevent the BIOS from retaining settings.
6. Frequent improper shutdowns can also affect the BIOS’s ability to retain settings.

Solutions to retain BIOS settings
1. If the battery is aged or exhausted, replacing the battery is the first step to solving the retention problem.
2. Make sure that changes in the BIOS are saved correctly before exiting.
3. Turn off unnecessary security features so that changes in BIOS settings can be retained.
4. For outdated BIOS, you can check the manufacturer’s website for updated resources and follow the instructions to install the latest firmware.
5. Check all hardware connections and components for signs of damage or improper installation.
6. Follow the correct shutdown procedure to prevent potential data corruption.

When making BIOS settings, make sure you have enough understanding of the point-of-sale terminal configuration. Because incorrect settings may cause the point-of-sale terminal to fail to start properly or run unstably. Sunany recommends that it is best to back up the original settings on the point-of-sale terminal before changing the BIOS settings to prevent unexpected situations.