문서 번호: 000188578
LCD BIST Automatically Runs on Inspiron, Vostro, and Latitude Computers After Forced Shutdown During POST
요약: This article provides steps to prevent the LCD BIST from running automatically after forced shutdown during POST on some Inspiron, Vostro, and Latitude computers.
문서 콘텐츠
증상
Some Inspiron, Vostro, and Latitude users may experience the LCD Built-In Self-Test (Figure 1) automatically running after the computer was forced to shut down by pressing the power button during startup.
Figure 1: LCD Built-In Self-Test (BIST)
원인
This is due to timing mismatch between Intel Management Engine (ME) and BIOS communication.
해결
Updating to the latest BIOS version on the computer may help address the issue. See the How to download and install the latest BIOS: section for more information.
The following list of computer models has been reported as having this issue, but other computer models not listed may be affected as well (Table 1):
| Product Model |
|---|
| Inspiron 5410 |
| Inspiron 5418 |
| Inspiron 5510 |
| Inspiron 5518 |
| Vostro 5410 |
| Vostro 5510 |
| Inspiron 7306 2 in 1 |
| Inspiron 5406 2 in 1 |
| Inspiron 7506 2 in 1 |
| Inspiron 7706 2 in 1 |
| Inspiron 5402 |
| Inspiron 5409 |
| Inspiron 5502 |
| Inspiron 5509 |
| Vostro 5402 |
| Vostro 5502 |
| Inspiron 5310 |
| Vostro 5310 |
| Inspiron 7400 |
| Inspiron 5301 |
| Inspiron 7300 |
| Vostro 5301 |
| Inspiron 5410 2 in 1 |
| Latitude 3320 |
| Latitude 3420 |
| Latitude 3520 |
| Latitude 5420 |
| Latitude 7310 |
Table 1: Possible Impacted Computer Models
How to download and install the latest BIOS:
WARNING: Dell recommends disconnecting devices such as external hard drives, printers, scanners, and so on, before updating the BIOS.
WARNING: Dell laptops must have the battery that is installed and charged to at least 10% before you begin the BIOS update. Dell recommends connecting the laptop to AC power before proceeding with the update process.
NOTE: To learn more about updating the BIOS on a Dell computer, see the Dell Knowledge Base Dell BIOS Updates.
NOTE: To install the BIOS, your user account must have administrator privileges.
To download and install the latest BIOS for your computer, perform the following steps.
-
- Browse to the Dell Product Support page.
- You are given three options to identify your Dell Product.
- Touch or click the listing for your computer under THIS PC.
Note: When there is no listing for your computer under THIS PC, you can touch or click Download & Install SupportAssist, which automatically identifies your computer for you. Follow the prompts to download and install SupportAssist. For more information, browse to the Dell SupportAssist for PCs page.
- Enter the Service Tag, Dell Product ID, or Model, and then touch or click the Search button and select your computer from the list.
- Touch or click Browse all products: You must select the type of device you have, the brand name, and then the product model.
- Touch or click the listing for your computer under THIS PC.
- When you get to the product support page for your computer, touch or click the Driver & Downloads tab.
- Touch or click Find Drivers.
- Under Operating System, select BIOS.
- Locate the latest System BIOS.
- Click Download and save the file to your computer.
- Using File Explorer (also known as Windows Explorer), browse to the location where the downloaded file was saved.
- Double-click the BIOS setup file and follow the on-screen instructions to complete the installation process.
- Browse to the Dell Product Support page.
문서 속성
영향을 받는 제품
Inspiron 5301, Inspiron 13 5310, Inspiron 7300, Inspiron 7306 2-in-1, Inspiron 5402/5409, Inspiron 5406 2-in-1, Inspiron 14 5410 2-in-1, Inspiron 14 5410/5418, Inspiron 7400, Inspiron 5502/5509, Inspiron 15 5510/5518, Inspiron 7506 2-in-1
, Inspiron 7706 2-in-1, Latitude 3320, Latitude 3420, Latitude 3520, Vostro 5301, Vostro 13 5310, Vostro 5402, Vostro 14 5410, Vostro 5502, Vostro 15 5510
...
마지막 게시 날짜
02 12월 2022
버전
9
문서 유형
Solution