ThinkPad e431/e531 Products, if the use of power adapter when the start of normal, but the single battery started with the following 0190 error, you can upgrade the product BIOS to solve the upgraded BIOS please not less than 1.14 version.
If you are using the Windows operating system, please click here to download the current version of the BIOS;
If your operating system is not Windows, click here to download the CD-ROM version of the file image, burn the disc to refresh to the latest version.
Upgrade Reminders:
1. Before the BIOS upgrade process, make sure that the battery is connected to the laptop host and that the power supply is over 30%, keeping the adapter connected to the computer and capable of normal power supply;
2. Do not remove the power adapter or battery during the BIOS upgrade process. No shutdown, reboot, Standby or hibernate.
Note: If 0190 error has occurred, just reseat the battery, or after connecting the power to reboot the host, you can start the computer normally.